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The IACOB project
A new era in the study of Galactic massive OB stars

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Publications

Main publications of the IACOB project (including those describing the IACOB spectroscopic database)

  1. The IACOB project X. Large-scale quantitative spectroscopic analysis of Galactic luminous blue stars

      — de Burgos, Abel, Simón-Díaz, Sergio, Urbaneja, Miguel A., Puls, Joachim
        arXiv e-prints 2023, arXiv:2312.00241

  2. The IACOB project. IX. Building a modern empirical database of Galactic O9 - B9 supergiants: Sample selection, description, and completeness

      — de Burgos, A., Simón-Díaz, S., Urbaneja, M. A., Negueruela, I.
        Astronomy & Astrophysics 2023, 674 A212

  3. The IACOB project. VIII. Searching for empirical signatures of binarity in fast-rotating O-type stars

      — Britavskiy, N., Simón-Díaz, S., Holgado, G., Burssens, S., Maíz Apellániz, J., Eldridge, J. J., Nazé, Y., Pantaleoni González, M., Herrero, A.
        Astronomy & Astrophysics 2023, 672 A22

  4. The IACOB project. VII. The rotational properties of Galactic massive O-type stars revisited

      — Holgado, G., Simón-Díaz, S., Herrero, A., Barbá, R. H.
        Astronomy & Astrophysics 2022, 665 A150

  5. The IACOB project: Hunting for spectroscopic binaries in the OB supergiant domain. The pulsational variability menace

      — Simón-Díaz, S., Britvaskiy, N., Castro, N., Holgado, G.
        Contributions to the XIV.0 Scientific Meeting (virtual) of the Spanish Astronomical Society 2020, 186

  6. The IACOB spectroscopic database. New interface and second data release

      — Simón-Díaz, S., Pérez Prieto, J. A., Holgado, G., de Burgos, A., the IACOB team
        Contributions to the XIV.0 Scientific Meeting (virtual) of the Spanish Astronomical Society 2020, 187

  7. The IACOB project: searching for empirical signatures of binarity in fast-rotating Galactic O stars and B supergiants

      — Britavskiy, N., Holgado, G., Simón-Díaz, S., Castro, N., de Burgos, A., Herrero, A., Lennon, D. J., Burssens, S.
        Contributions to the XIV.0 Scientific Meeting (virtual) of the Spanish Astronomical Society 2020, 123

  8. The IACOB project. VI. On the elusive detection of massive O-type stars close to the ZAMS

      — Holgado, G., Simón-Díaz, S., Haemmerlé, L., Lennon, D. J., Barbá, R. H., Cerviño, M., Castro, N., Herrero, A., Meynet, G., Arias, J. I.
        Astronomy & Astrophysics 2020, 638 A157

  9. Spectroscopic and physical characterization of the Galactic O-type stars surveyed by the IACOB and OWN surveys

      — Holgado, G..
        PhD Thesis, Universidad de La Laguna 2019,

  10. The IACOB project. V. Spectroscopic parameters of the O-type stars in the modern grid of standards for spectral classification

      — Holgado, G., Simón-Díaz, S., Barbá, R. H., Puls, J., Herrero, A., Castro, N., Garcia, M., Maíz Apellániz, J., Negueruela, I., Sabín-Sanjulián, C.
        Astronomy & Astrophysics 2018, 613 A65

  11. Quantitative spectroscopic analyses in the IACOB+OWN project: Massive O-type stars in the Galaxy with the current Gaia information

      — Holgado, Gonzalo, Simón-Díaz, Sergio, Barbá, Rodolfo
        The Lives and Death-Throes of Massive Stars, IAUS329 2017, 329 407-407

  12. Physical characterization of Galactic O-type stars targeted by the IACOB and OWN surveys

      — Holgado, G., Simón-Díaz, S., Barbá, R.
        Highlights on Spanish Astrophysics IX 2017, 394-400

  13. The IACOB project . III. New observational clues to understand macroturbulent broadening in massive O- and B-type stars

      — Simón-Díaz, S., Godart, M., Castro, N., Herrero, A., Aerts, C., Puls, J., Telting, J., Grassitelli, L.
        Astronomy & Astrophysics 2017, 597 A22

  14. The IACOB project. IV. New predictions for high-degree non-radial mode instability domains in massive stars and their connection with macroturbulent broadening

      — Godart, M., Simón-Díaz, S., Herrero, A., Dupret, M. A., Grötsch-Noels, A., Salmon, S. J. A. J., Ventura, P.
        Astronomy & Astrophysics 2017, 597 A23

  15. The IACOB spectroscopic database: recent updates and first data release

      — Simón-Díaz, S., Negueruela, I., Maíz Apellániz, J., Castro, N., Herrero, A., Garcia, M., Pérez-Prieto, J. A., Caon, N., Alacid, J. M., Camacho, I., Dorda, R., Godart, M., González-Fernández, C., Holgado, G., Rübke, K.
        Highlights of Spanish Astrophysics VIII 2015, 576-581

  16. The IACOB project. II. On the scatter of O-dwarf spectral type - effective temperature calibrations

      — Simón-Díaz, S., Herrero, A., Sabín-Sanjulián, C., Najarro, F., Garcia, M., Puls, J., Castro, N., Evans, C. J.
        Astronomy & Astrophysics 2014, 570 L6

  17. The IACOB project. I. Rotational velocities in northern Galactic O- and early B-type stars revisited. The impact of other sources of line-broadening

      — Simón-Díaz, S., Herrero, A.
        Astronomy & Astrophysics 2014, 562 A135

  18. The IACOB project: A grid-based automatic tool for the quantitative spectroscopic analysis of O-stars

      — Simón-Díaz, S., Castro, N., Herrero, A., Puls, J., Garcia, M., Sabín-Sanjulián, C.
        Journal of Physics Conference Series, 328 2011, 328 012021

  19. The IACOB spectroscopic database of galactic OB stars

      — Simón-Díaz, Sergio, Castro, Norberto, Garcia, Miriam, Herrero, Artemio
        Active OB Stars: Structure, Evolution, Mass Loss, and Critical Limits, IAUS272 2011, 272 310-312

  20. The IACOB spectroscopic database of Northern Galactic OB stars

      — Simón-Díaz, S., Castro, N., Garcia, M., Herrero, A., Markova, N.
        Bulletin de la Societe Royale des Sciences de Liege 2011, 80 514-518

  21. The IACOB Project: Synergies for the Gaia Era

      — Simón-Díaz, S., Garcia, M., Herrero, A., Maíz Apellániz, J., Negueruela, I.
        Stellar Clusters & Associations: A RIA Workshop on Gaia 2011, 255-259

Papers based on IACOB spectra

  1. The spectroscopic orbit of HD 168112 A,B in NGC 6604: another massive binary target for interferometry

      — Putkuri, C., Gamen, R., Morrell, N. I., Maíz Apellániz, J., Arias, J. I., Simón-Díaz, S., Ferrero, G. A., Rodríguez, C. N., Sota, A., Benvenuto, O. G., Barbá, R. H.
        Monthly Notices of the Royal Astronomical Society 2023, 525 6084-6096

  2. Fundamental parameters of two O9-type giant stars: the (former) spectral classification standard HD 93249 A and ALS 12502 A

      — Ansín, T., Gamen, R., Morrell, N. I., Barbá, R. H., Maíz Apellániz, J., Arias, J. I., Simón-Díaz, S., Holgado, G.
        Monthly Notices of the Royal Astronomical Society 2023, 525 4566-4580

  3. MONOS: Multiplicity Of Northern O-type Spectroscopic systems. II. Orbit review and analysis for 35 single-lined spectroscopic binary systems and candidates

      — Trigueros Páez, E., Barbá, R. H., Negueruela, I., Maíz Apellániz, J., Simón-Díaz, S., Holgado, G.
        Astronomy & Astrophysics 2021, 655 A4

  4. Convective core sizes in rotating massive stars. I. Constraints from solar metallicity OB field stars

      — Martinet, S., Meynet, G., Ekström, S., Simón-Díaz, S., Holgado, G., Castro, N., Georgy, C., Eggenberger, P., Buldgen, G., Salmon, S., Hirschi, R., Groh, J., Farrell, E., Murphy, L.
        Astronomy & Astrophysics 2021, 648 A126

  5. High-resolution spectroscopic study of massive blue and red supergiants in Perseus OB1. I. Definition of the sample, membership, and kinematics

      — de Burgos, A., Simon-Díaz, S., Lennon, D. J., Dorda, R., Negueruela, I., Urbaneja, M. A., Patrick, L. R., Herrero, A.
        Astronomy & Astrophysics 2020, 643 A116

  6. Photometric detection of internal gravity waves in upper main-sequence stars. II. Combined TESS photometry and high-resolution spectroscopy

      — Bowman, D. M., Burssens, S., Simón-Díaz, S., Edelmann, P. V. F., Rogers, T. M., Horst, L., Röpke, F. K., Aerts, C.
        Astronomy & Astrophysics 2020, 640 A36

  7. Variability of OB stars from TESS southern Sectors 1-13 and high-resolution IACOB and OWN spectroscopy

      — Burssens, S., Simón-Díaz, S., Bowman, D. M., Holgado, G., Michielsen, M., de Burgos, A., Castro, N., Barbá, R. H., Aerts, C.
        Astronomy & Astrophysics 2020, 639 A81

  8. MONOS: Multiplicity Of Northern O-type Spectroscopic systems. I. Project description and spectral classifications and visual multiplicity of previously known objects

      — Maíz Apellániz, J., Trigueros Páez, E., Negueruela, I., Barbá, R. H., Simón-Díaz, S., Lorenzo, J., Sota, A., Gamen, R. C., Fariña, C., Salas, J., Caballero, J. A., Morrell, N. I., Pellerin, A., Alfaro, E. J., Herrero, A., Arias, J. I., Marco, A.
        Astronomy & Astrophysics 2019, 626 A20

  9. Surface abundances of CNO in Galactic O-stars: a pilot study with FASTWIND

      — Carneiro, L. P., Puls, J., Hoffmann, T. L., Holgado, G., Simón-Díaz, S.
        Astronomy & Astrophysics 2019, 623 A3

  10. Fundamental parameters of massive stars in multiple systems: The cases of HD 17505A and HD 206267A

      — Raucq, F., Rauw, G., Mahy, L., Simón-Díaz, S.
        Astronomy & Astrophysics 2018, 614 A60

  11. K2 photometry and HERMES spectroscopy of the blue supergiant \ensuremath\rho Leo: rotational wind modulation and low-frequency waves

      — Aerts, C., Bowman, D. M., Símon-Díaz, S., Buysschaert, B., Johnston, C., Moravveji, E., Beck, P. G., De Cat, P., Triana, S., Aigrain, S., Castro, N., Huber, D., White, T.
        Monthly Notices of the Royal Astronomical Society 2018, 476 1234-1241

  12. Low-frequency photospheric and wind variability in the early-B supergiant HD 2905

      — Simón-Díaz, S., Aerts, C., Urbaneja, M. A., Camacho, I., Antoci, V., Fredslund Andersen, M., Grundahl, F., Pallé, P. L.
        Astronomy & Astrophysics 2018, 612 A40

  13. Kepler sheds new and unprecedented light on the variability of a blue supergiant: Gravity waves in the O9.5Iab star HD 188209

      — Aerts, C., Símon-Díaz, S., Bloemen, S., Debosscher, J., Pápics, P. I., Bryson, S., Still, M., Moravveji, E., Williamson, M. H., Grundahl, F., Fredslund Andersen, M., Antoci, V., Pallé, P. L., Christensen-Dalsgaard, J., Rogers, T. M.
        Astronomy & Astrophysics 2017, 602 A32

  14. A study of the effect of rotational mixing on massive stars evolution: surface abundances of Galactic O7-8 giant stars

      — Martins, F., Simón-Díaz, S., Barbá, R. H., Gamen, R. C., Ekström, S.
        Astronomy & Astrophysics 2017, 599 A30

  15. Evidence of magnetic field decay in massive main-sequence stars

      — Fossati, L., Schneider, F. R. N., Castro, N., Langer, N., Simón-Díaz, S., Müller, A., de Koter, A., Morel, T., Petit, V., Sana, H., Wade, G. A.
        Astronomy & Astrophysics 2016, 592 A84

  16. B fields in OB stars (BOB). Detection of a strong magnetic field in the O9.7 V star HD 54879

      — Castro, N., Fossati, L., Hubrig, S., Simón-Díaz, S., Schöller, M., Ilyin, I., Carrol, T. A., Langer, N., Morel, T., Schneider, F. R. N., Przybilla, N., Herrero, A., de Koter, A., Oskinova, L. M., Reisenegger, A., Sana, H., BOB Collaboration
        Astronomy & Astrophysics 2015, 581 A81

  17. Observational Consequences of Turbulent Pressure in the Envelopes of Massive Stars

      — Grassitelli, L., Fossati, L., Simón-Diáz, S., Langer, N., Castro, N., Sanyal, D.
        Astrophysical Journal Letters 2015, 808 L31

  18. Surface abundances of ON stars

      — Martins, F., Simón-Díaz, S., Palacios, A., Howarth, I., Georgy, C., Walborn, N. R., Bouret, J. -C., Barbá, R.
        Astronomy & Astrophysics 2015, 578 A109

  19. Orbital and Physical Properties of the \ensuremath\sigma Ori Aa, Ab, B Triple System

      — Simón-Díaz, S., Caballero, J. A., Lorenzo, J., Maíz Apellániz, J., Schneider, F. R. N., Negueruela, I., Barbá, R. H., Dorda, R., Marco, A., Montes, D., Pellerin, A., Sanchez-Bermudez, J., Sódor, Á., Sota, A.
        Astrophysical Journal 2015, 799 169

  20. Asteroseismology of OB stars with hundreds of single snapshot spectra (and a few time-series of selected targets)

      — Simón-Díaz, S.
        2015, 307 194-199

  21. The Cocoon nebula and its ionizing star: do stellar and nebular abundances agree?

      — García-Rojas, J., Simón-Díaz, S., Esteban, C.
        Astronomy & Astrophysics 2014, 571 A93

  22. The spectroscopic Hertzsprung-Russell diagram of Galactic massive stars

      — Castro, N., Fossati, L., Langer, N., Simón-Díaz, S., Schneider, F. R. N., Izzard, R. G.
        Astronomy & Astrophysics 2014, 570 L13

  23. The rotation rates of massive stars. How slow are the slow ones?

      — Sundqvist, J. O., Simón-Díaz, S., Puls, J., Markova, N.
        Astronomy & Astrophysics 2013, 559 L10

  24. Macroturbulent Broadening: A Single Snap-Shot Approach to Investigate Pulsations in Massive Stars?

      — Simón-Díaz, S., Castro, N., Herrero, A., Aerts, C., Puls, J., Markova, N.
        2012, 465 19

  25. A Third Massive Star Component in the \ensuremath\sigma Orionis AB System

      — Simón-Díaz, S., Caballero, J. A., Lorenzo, J.
        Astrophysical Journal 2011, 742 55

  26. The chemical composition of the Orion star forming region. III. C, N, Ne, Mg, and Fe abundances in B-type stars revisited

      — Nieva, M. -F., Simón-Díaz, S.
        Astronomy & Astrophysics 2011, 532 A2

  27. An Interferometric and Spectroscopic Analysis of the Multiple Star System HD 193322

      — ten Brummelaar, Theo A., O'Brien, David P., Mason, Brian D., Farrington, Christopher D., Fullerton, Alexander W., Gies, Douglas R., Grundstrom, Erika D., Harkopf, William I., Matson, Rachel A., McAlister, Harold A., McSwain, M. Virginia, Roberts, Lewis C., Schaefer, Gail H., Simón-Díaz, Sergio, Sturmann, Judit, Sturmann, Laszlo, Turner, Nils H., Williams, Stephen J.
        Astronomical Journal 2011, 142 21

  28. Is macroturbulence in OB Sgs related to pulsations?

      — Simón-Díaz, Sergio, Herrero, Artemio, Uytterhoeven, Katrien, Castro, Norberto, Aerts, Conny, Puls, Joachim
        2011, 272 549-550

  29. A detailed study of the H ii region M 43 and its ionizing star

      — Simón-Díaz, S., García-Rojas, J., Esteban, C., Stasińska, G., López-Sánchez, A. R., Morisset, C.
        Astronomy & Astrophysics 2011, 530 A57

  30. The chemical composition of the Orion star forming region. II. Stars, gas, and dust: the abundance discrepancy conundrum

      — Simón-Díaz, S., Stasińska, G.
        Astronomy & Astrophysics 2011, 526 A48

  31. Macroturbulent broadening in Massive Stars and its possible connection to Stellar Oscillations

      — Simón-Díaz, S.
        Bulletin de la Societe Royale des Sciences de Liege 2011, 80 86-91

  32. Is macroturbulent broadening in OB Supergiants related to pulsations?

      — Simón-Díaz, S., Uytterhoeven, K., Herrero, A., Castro, N., Puls, J.
        Astronomische Nachrichten 2010, 331 1069

  33. Observational Evidence for a Correlation Between Macroturbulent Broadening and Line-profile Variations in OB Supergiants

      — Simón-Díaz, S., Herrero, A., Uytterhoeven, K., Castro, N., Aerts, C., Puls, J.
        Astrophysical Journal Letters 2010, 720 L174-L178

  34. The chemical composition of the Orion star forming region. I. Homogeneity of O and Si abundances in B-type stars

      — Simón-Díaz, S.
        Astronomy & Astrophysics 2010, 510 A22

  35. Time-scales of Line-broadening Variability in OB Supergiants

      — Simón-Díaz, S., Uytterhoeven, K., Herrero, A., Castro, N.
        2009, 1170 397-399

Some other papers of interest

  1. Extreme mass ratios and fast rotation in three massive binaries

      — Nazé, Yaël, Britavskiy, Nikolay, Rauw, Gregor, Labadie-Bartz, Jonathan, Simón-Díaz, Sergio
        Monthly Notices of the Royal Astronomical Society 2023, 525 1641-1656

  2. A method to deconvolve stellar profiles. The non-rotating line utilizing Gaussian sum approximation

      — Escárate, P., Curé, M., Araya, I., Coronel, M., Cedeño, A. L., Celedon, L., Cavieres, J., Agüero, J. C., Arcos, C., Cidale, L. S., Levenhagen, R. S., Pezoa, R., Simón-Díaz, S.
        Astronomy & Astrophysics 2023, 676 A44

  3. A calibration point for stellar evolution from massive star asteroseismology

      — Burssens, Siemen, Bowman, Dominic M., Michielsen, Mathias, Simón-Díaz, Sergio, Aerts, Conny, Vanlaer, Vincent, Banyard, Gareth, Nardetto, Nicolas, Townsend, Richard H. D., Handler, Gerald, Mombarg, Joey S. G., Vanderspek, Roland, Ricker, George
        Nature Astronomy 2023, 7 913-930

  4. The wide-field, multiplexed, spectroscopic facility WEAVE: Survey design, overview, and simulated implementation

      — Jin, Shoko, Trager, Scott C., Dalton, Gavin B., Aguerri, J. Alfonso L., Drew, J. E., Falcón-Barroso, Jesús, Gänsicke, Boris T., Hill, Vanessa, Iovino, Angela, Pieri, Matthew M., et al.
        Monthly Notices of the Royal Astronomical Society 2023,

  5. The Gaia-ESO Survey: The analysis of the hot-star spectra

      — Blomme, R. et al.
        Astronomy & Astrophysics 2022, 661 A120

  6. The nature of the Cygnus extreme B supergiant 2MASS J20395358+4222505

      — Herrero, A. et al.
        Monthly Notices of the Royal Astronomical Society 2022, 511 3113-3124

  7. MONOS: Multiplicity Of Northern O-type Spectroscopic systems. II. Orbit review and analysis for 35 single-lined spectroscopic binary systems and candidates

      — Trigueros Páez, E., Barbá, R. H., Negueruela, I., Maíz Apellániz, J., Simón-Díaz, S., Holgado, G.
        Astronomy & Astrophysics 2021, 655 A4

  8. Hubble spectroscopy of LB-1: Comparison with B+black-hole and Be+stripped-star models

      — Lennon, D. J., Maíz Apellániz, J., Irrgang, A., Bohlin, R., Deustua, S., Dufton, P. L., Simón-Díaz, S., Herrero, A., Casares, J., Muñoz-Darias, T., Smartt, S. J., González Hernández, J. I., de Burgos, A.
        Astronomy & Astrophysics 2021, 649 A167

  9. Mapping the core of the Tarantula Nebula with VLT-MUSE. II. The spectroscopic Hertzsprung-Russell diagram of OB stars in NGC 2070

      — Castro, N., Crowther, P. A., Evans, C. J., Vink, J. S., Puls, J., Herrero, A., Garcia, M., Selman, F. J., Roth, M. M., Simón-Díaz, S.
        Astronomy & Astrophysics 2021, 648 A65

  10. Lucky spectroscopy, an equivalent technique to lucky imaging. II. Spatially resolved intermediate-resolution blue-violet spectroscopy of 19 close massive binaries using the William Herschel Telescope

      — Maíz Apellániz, J., Barbá, R. H., Fariña, C., Sota, A., Pantaleoni González, M., Holgado, G., Negueruela, I., Simón-Díaz, S.
        Astronomy & Astrophysics 2021, 646 A11

  11. Spectroscopic characterization of the known O-star population in Cygnus OB2. Evidence of multiple star-forming bursts

      — Berlanas, S. R., Herrero, A., Comerón, F., Simón-Díaz, S., Lennon, D. J., Pasquali, A., Maíz Apellániz, J., Sota, A., Pellerín, A.
        Astronomy & Astrophysics 2020, 642 A168

  12. A new spectroscopic analysis of the massive O + O type binary HD 54662 AB

      — Barbá, R. H., Sabín-Sanjulián, C., Arias, J. I., Gamen, R. C., Morrell, N. I., Ferrero, G., Maíz Apellániz, J., Putkuri, C., Simón Díaz, S., Boyajian, T. S., Fullerton, A. W., McSwain, M. V.
        Monthly Notices of the Royal Astronomical Society 2020, 494 3937-3949

  13. Analysis of absorption lines in the high-resolution spectra of five hot post-AGB candidates

      — Herrero, A., Parthasarathy, M., Simón-Díaz, S., Hubrig, S., Sarkar, G., Muneer, S.
        Monthly Notices of the Royal Astronomical Society 2020, 494 2117-2130

  14. A detailed non-LTE analysis of LB-1: Revised parameters and surface abundances

      — Simón-Díaz, S., Maíz Apellániz, J., Lennon, D. J., González Hernández, J. I., Allende Prieto, C., Castro, N., de Burgos, A., Dufton, P. L., Herrero, A., Toledo-Padrón, B., Smartt, S. J.
        Astronomy & Astrophysics 2020, 634 L7

  15. A Modern Guide to Quantitative Spectroscopy of Massive OB Stars

      — Simón-Díaz, Sergio
        Reviews in Frontiers of Modern Astrophysics; From Space Debris to Cosmology 2020, 155-187

  16. Low-frequency gravity waves in blue supergiants revealed by high-precision space photometry

      — Bowman, Dominic M., Burssens, Siemen, Pedersen, May G., Johnston, Cole, Aerts, Conny, Buysschaert, Bram, Michielsen, Mathias, Tkachenko, Andrew, Rogers, Tamara M., Edelmann, Philipp V. F., Ratnasingam, Rathish P., Simón-Díaz, Sergio, Castro, Norberto, Moravveji, Ehsan, Pope, Benjamin J. S., White, Timothy R., De Cat, Peter
        Nature Astronomy 2019, 3 760-765

  17. Diverse Variability of O and B Stars Revealed from 2-minute Cadence Light Curves in Sectors 1 and 2 of the TESS Mission: Selection of an Asteroseismic Sample

      — Pedersen, May G. et al.
        Astrophysical Journal Letters 2019, 872 L9

  18. Photometric detection of internal gravity waves in upper main-sequence stars. I. Methodology and application to CoRoT targets

      — Bowman, D. M., Aerts, C., Johnston, C., Pedersen, M. G., Rogers, T. M., Edelmann, P. V. F., Simón-Díaz, S., Van Reeth, T., Buysschaert, B., Tkachenko, A., Triana, S. A.
        Astronomy & Astrophysics 2019, 621 A135

  19. Oxygen and silicon abundances in Cygnus OB2. Chemical homogeneity in a sample of OB slow rotators

      — Berlanas, S. R., Herrero, A., Comerón, F., Simón-Díaz, S., Cerviño, M., Pasquali, A.
        Astronomy & Astrophysics 2018, 620 A56

  20. The VLT-FLAMES Tarantula Survey. XXIX. Massive star formation in the local 30 Doradus starburst

      — Schneider, F. R. N. et al.
        Astronomy & Astrophysics 2018, 618 A73

  21. Non-synchronous rotations in massive binary systems. HD 93343 revisited

      — Putkuri, C., Gamen, R., Morrell, N. I., Simón-Díaz, S., Barbá, R. H., Ferrero, G. A., Arias, J. I., Solivella, G.
        Astronomy & Astrophysics 2018, 618 A174

  22. Search for Galactic runaway stars using Gaia Data Release 1 and HIPPARCOS proper motions

      — Maíz Apellániz, J., Pantaleoni González, M., Barbá, R. H., Simón-Díaz, S., Negueruela, I., Lennon, D. J., Sota, A., Trigueros Páez, E.
        Astronomy & Astrophysics 2018, 616 A149

  23. Lucky Spectroscopy, an equivalent technique to Lucky Imaging. Spatially resolved spectroscopy of massive close visual binaries using the William Herschel Telescope

      — Maíz Apellániz, J., Barbá, R. H., Simón-Díaz, S., Sota, A., Trigueros Páez, E., Caballero, J. A., Alfaro, E. J.
        Astronomy & Astrophysics 2018, 615 A161

  24. The VLT-FLAMES Tarantula Survey. XXVIII. Nitrogen abundances for apparently single dwarf and giant B-type stars with small projected rotational velocities

      — Dufton, P. L., Thompson, A., Crowther, P. A., Evans, C. J., Schneider, F. R. N., de Koter, A., de Mink, S. E., Garland, R., Langer, N., Lennon, D. J., McEvoy, C. M., Ramírez-Agudelo, O. H., Sana, H., Símon Díaz, S., Taylor, W. D., Vink, J. S.
        Astronomy & Astrophysics 2018, 615 A101

  25. An excess of massive stars in the local 30 Doradus starburst

      — Schneider, F. R. N. et al.
        Science 2018, 359 69-71

  26. The massive multiple system HD 64315

      — Lorenzo, J., Simón-Díaz, S., Negueruela, I., Vilardell, F., Garcia, M., Evans, C. J., Montes, D.
        Astronomy & Astrophysics 2017, 606 A54

  27. The VLT-FLAMES Tarantula Survey. XXVII. Physical parameters of B-type main-sequence binary systems in the Tarantula nebula

      — Garland, R., Dufton, P. L., Evans, C. J., Crowther, P. A., Howarth, I. D., de Koter, A., de Mink, S. E., Grin, N. J., Langer, N., Lennon, D. J., McEvoy, C. M., Sana, H., Schneider, F. R. N., Símon Díaz, S., Taylor, W. D., Thompson, A., Vink, J. S.
        Astronomy & Astrophysics 2017, 603 A91

  28. Carbon and oxygen in H II regions of the Magellanic Clouds: abundance discrepancy and chemical evolution

      — Toribio San Cipriano, L., Domínguez-Guzmán, G., Esteban, C., García-Rojas, J., Mesa-Delgado, A., Bresolin, F., Rodríguez, M., Simón-Díaz, S.
        Monthly Notices of the Royal Astronomical Society 2017, 467 3759-3774

  29. The VLT-FLAMES Tarantula Survey. XXVI. Properties of the O-dwarf population in 30 Doradus

      — Sabín-Sanjulián, C. et al.
        Astronomy & Astrophysics 2017, 601 A79

  30. The VLT-FLAMES Tarantula Survey . XXIV. Stellar properties of the O-type giants and supergiants in 30 Doradus

      — Ramírez-Agudelo, O. H. et al.
        Astronomy & Astrophysics 2017, 600 A81

  31. The deep OB star population in Carina from the VST Photometric H\ensuremath\alpha Survey (VPHAS+)

      — Mohr-Smith, M., Drew, J. E., Napiwotzki, R., Simón-Díaz, S., Wright, N. J., Barentsen, G., Eislöffel, J., Farnhill, H. J., Greimel, R., Monguió, M., Kalari, V., Parker, Q. A., Vink, J. S.
        Monthly Notices of the Royal Astronomical Society 2017, 465 1807-1830

  32. B field in OB stars (BOB): The outstandingly strong magnetic field in the evolved He-strong star CPD -62\textdegree 2124

      — Castro, N., Fossati, L., Hubrig, S., Järvinen, S. P., Przybilla, N., Nieva, M. -F., Ilyin, I., Carroll, T. A., Schöller, M., Langer, N., Schneider, F. R. N., Simón-Díaz, S., Morel, T., Butler, K., BOB Collaboration
        Astronomy & Astrophysics 2017, 597 L6

  33. Metallicity dependence of turbulent pressure and macroturbulence in stellar envelopes

      — Grassitelli, L., Fossati, L., Langer, N., Simón-Díaz, S., Castro, N., Sanyal, D.
        Astronomy & Astrophysics 2016, 593 A14

  34. An extensive spectroscopic time series of three Wolf-Rayet stars - I. The lifetime of large-scale structures in the wind of WR 134

      — Aldoretta, E. J. et al.
        Monthly Notices of the Royal Astronomical Society 2016, 460 3407-3417

  35. Spectral Classification and Properties of the OVz Stars in the Galactic O Star Spectroscopic Survey (GOSSS)

      — Arias, Julia I., Walborn, Nolan R., Simón Díaz, Sergio, Barbá, Rodolfo H., Maíz Apellániz, Jesús, Sabín-Sanjulián, Carolina, Gamen, Roberto C., Morrell, Nidia I., Sota, Alfredo, Marco, Amparo, Negueruela, Ignacio, Leão, João R. S., Herrero, Artemio, Alfaro, Emilio J.
        Astronomical Journal 2016, 152 31

  36. GU Monocerotis: A high-mass eclipsing overcontact binary in the young open cluster Dolidze 25

      — Lorenzo, J., Negueruela, I., Vilardell, F., Simón-Díaz, S., Pastor, P., Méndez Majuelos, M.
        Astronomy & Astrophysics 2016, 590 A45

  37. The Galactic O-Star Spectroscopic Survey (GOSSS). III. 142 Additional O-type Systems.

      — Maíz Apellániz, J., Sota, A., Arias, J. I., Barbá, R. H., Walborn, N. R., Simón-Díaz, S., Negueruela, I., Marco, A., Leão, J. R. S., Herrero, A., Gamen, R. C., Alfaro, E. J.
        Astrophysical Journal Supplement 2016, 224 4

  38. OB stars at the lowest Local Group metallicity. GTC-OSIRIS observations of Sextans A

      — Camacho, I., Garcia, M., Herrero, A., Simón-Díaz, S.
        Astronomy & Astrophysics 2016, 585 A82

  39. Open cluster Dolidze 25: Stellar parameters and the metallicity in the Galactic anticentre

      — Negueruela, I., Simón-Díaz, S., Lorenzo, J., Castro, N., Herrero, A.
        Astronomy & Astrophysics 2015, 584 A77

  40. The little-studied cluster Berkeley 90. II. The foreground ISM

      — Maíz Apellániz, J., Barbá, R. H., Sota, A., Simón-Díaz, S.
        Astronomy & Astrophysics 2015, 583 A132

  41. The VLT-FLAMES Tarantula Survey. XXIII. Two massive double-lined binaries in 30 Doradus

      — Howarth, I. D., Dufton, P. L., Dunstall, P. R., Evans, C. J., Almeida, L. A., Bonanos, A. Z., Clark, J. S., Langer, N., Sana, H., Simón-Díaz, S., Soszyński, I., Taylor, W. D.
        Astronomy & Astrophysics 2015, 582 A73

  42. The VLT-FLAMES Tarantula Survey. XXII. Multiplicity properties of the B-type stars

      — Dunstall, P. R., Dufton, P. L., Sana, H., Evans, C. J., Howarth, I. D., Simón-Díaz, S., de Mink, S. E., Langer, N., Maíz Apellániz, J., Taylor, W. D.
        Astronomy & Astrophysics 2015, 580 A93

  43. The little-studied cluster Berkeley 90. I. LS III +46 11: a very massive O3.5 If* + O3.5 If* binary

      — Maíz Apellániz, J., Negueruela, I., Barbá, R. H., Walborn, N. R., Pellerin, A., Simón-Díaz, S., Sota, A., Marco, A., Alonso-Santiago, J., Sanchez Bermudez, J., Gamen, R. C., Lorenzo, J.
        Astronomy & Astrophysics 2015, 579 A108

  44. MGB and the new Galactic O-Star Spectroscopic Survey spectral classification standard grid

      — Maíz Apellániz, J., Alfaro, E. J., Arias, J. I., Barbá, R. H., Gamen, R. C., Herrero, A., Leão, J. R. S., Marco, A., Negueruela, I., Simón-Díaz, S., Sota, A., Walborn, N. R.
        2015, 603-603

  45. The VLT-FLAMES Tarantula Survey. XIX. B-type supergiants: Atmospheric parameters and nitrogen abundances to investigate the role of binarity and the width of the main sequence

      — McEvoy, C. M. et al.
        Astronomy & Astrophysics 2015, 575 A70

  46. B fields in OB stars (BOB): on the detection of weak magnetic fields in the two early B-type stars \ensuremath\beta CMa and \ensuremathin CMa. Possible lack of a ``magnetic desert'' in massive stars

      — Fossati, L., Castro, N., Morel, T., Langer, N., Briquet, M., Carroll, T. A., Hubrig, S., Nieva, M. F., Oskinova, L. M., Przybilla, N., Schneider, F. R. N., Schöller, M., Simón-Díaz, S., Ilyin, I., de Koter, A., Reisenegger, A., Sana, H.
        Astronomy & Astrophysics 2015, 574 A20

  47. The VLT-FLAMES Tarantula Survey. XVIII. Classifications and radial velocities of the B-type stars

      — Evans, C. J., Kennedy, M. B., Dufton, P. L., Howarth, I. D., Walborn, N. R., Markova, N., Clark, J. S., de Mink, S. E., de Koter, A., Dunstall, P. R., Hénault-Brunet, V., Maíz Apellániz, J., McEvoy, C. M., Sana, H., Simón-Díaz, S., Taylor, W. D., Vink, J. S.
        Astronomy & Astrophysics 2015, 574 A13

  48. MY Camelopardalis, a very massive merger progenitor

      — Lorenzo, J., Negueruela, I., Baker, A. K. F. Val, García, M., Simón-Díaz, S., Pastor, P., Méndez Majuelos, M.
        Astronomy & Astrophysics 2014, 572 A110

  49. The VLT-FLAMES Tarantula Survey. XVII. Physical and wind properties of massive stars at the top of the main sequence

      — Bestenlehner, J. M., Gräfener, G., Vink, J. S., Najarro, F., de Koter, A., Sana, H., Evans, C. J., Crowther, P. A., Hénault-Brunet, V., Herrero, A., Langer, N., Schneider, F. R. N., Simón-Díaz, S., Taylor, W. D., Walborn, N. R.
        Astronomy & Astrophysics 2014, 570 A38

  50. On the use of the Fourier transform to determine the projected rotational velocity of line-profile variable B stars

      — Aerts, C., Simón-Díaz, S., Groot, P. J., Degroote, P.
        Astronomy & Astrophysics 2014, 569 A118

  51. Sher 25: pulsating but apparently alone

      — Taylor, William D., Evans, Christopher J., Simón-Díaz, Sergio, Sana, Hugues, Langer, Norbert, Smith, Nathan, Smartt, Stephen J.
        Monthly Notices of the Royal Astronomical Society 2014, 442 1483-1490

  52. Astrophysical parameters and orbital solution of the peculiar X-ray transient IGR J00370+6122

      — González-Galán, A., Negueruela, I., Castro, N., Simón-Díaz, S., Lorenzo, J., Vilardell, F.
        Astronomy & Astrophysics 2014, 566 A131

  53. The VLT-FLAMES Tarantula Survey. XIV. The O-type stellar content of 30 Doradus

      — Walborn, N. R., Sana, H., Simón-Díaz, S., Maíz Apellániz, J., Taylor, W. D., Evans, C. J., Markova, N., Lennon, D. J., de Koter, A.
        Astronomy & Astrophysics 2014, 564 A40

  54. The VLT-FLAMES Tarantula Survey. XIII: On the nature of O Vz stars in 30 Doradus

      — Sabín-Sanjulián, C., Simón-Díaz, S., Herrero, A., Walborn, N. R., Puls, J., Maíz Apellániz, J., Evans, C. J., Brott, I., de Koter, A., Garcia, M., Markova, N., Najarro, F., Ramírez-Agudelo, O. H., Sana, H., Taylor, W. D., Vink, J. S.
        Astronomy & Astrophysics 2014, 564 A39

  55. The VLT-FLAMES Tarantula Survey. XVI. The optical and NIR extinction laws in 30 Doradus and the photometric determination of the effective temperatures of OB stars

      — Maíz Apellániz, J., Evans, C. J., Barbá, R. H., Gräfener, G., Bestenlehner, J. M., Crowther, P. A., García, M., Herrero, A., Sana, H., Simón-Díaz, S., Taylor, W. D., van Loon, J. Th., Vink, J. S., Walborn, N. R.
        Astronomy & Astrophysics 2014, 564 A63

  56. Spectroscopic and physical parameters of Galactic O-type stars. II. Observational constraints on projected rotational and extra broadening velocities as a function of fundamental parameters and stellar evolution

      — Markova, N., Puls, J., Simón-Díaz, S., Herrero, A., Markov, H., Langer, N.
        Astronomy & Astrophysics 2014, 562 A37

  57. A Be-type star with a black-hole companion

      — Casares, J., Negueruela, I., Ribó, M., Ribas, I., Paredes, J. M., Herrero, A., Simón-Díaz, S.
        Nature 2014, 505 378-381

  58. The VLT-FLAMES Tarantula Survey. XII. Rotational velocities of the single O-type stars

      — Ramírez-Agudelo, O. H., Simón-Díaz, S., Sana, H., de Koter, A., Sabín-Sanjulían, C., de Mink, S. E., Dufton, P. L., Gräfener, G., Evans, C. J., Herrero, A., Langer, N., Lennon, D. J., Maíz Apellániz, J., Markova, N., Najarro, F., Puls, J., Taylor, W. D., Vink, J. S.
        Astronomy & Astrophysics 2013, 560 A29

  59. Low-amplitude rotational modulation rather than pulsations in the CoRoT B-type supergiant HD 46769

      — Aerts, C., Simón-Díaz, S., Catala, C., Neiner, C., Briquet, M., Castro, N., Schmid, V. S., Scardia, M., Rainer, M., Poretti, E., Pápics, P. I., Degroote, P., Bloemen, S., Østensen, R. H., Auvergne, M., Baglin, A., Baudin, F., Michel, E., Samadi, R.
        Astronomy & Astrophysics 2013, 557 A114

  60. The VLT-FLAMES Tarantula Survey. X. Evidence for a bimodal distribution of rotational velocities for the single early B-type stars

      — Dufton, P. L., Langer, N., Dunstall, P. R., Evans, C. J., Brott, I., de Mink, S. E., Howarth, I. D., Kennedy, M., McEvoy, C., Potter, A. T., Ramírez-Agudelo, O. H., Sana, H., Simón-Díaz, S., Taylor, W., Vink, J. S.
        Astronomy & Astrophysics 2013, 550 A109

  61. NGC 1624-2: a slowly rotating, X-ray luminous Of?cp star with an extraordinarily strong magnetic field

      — Wade, G. A., Maíz Apellániz, J., Martins, F., Petit, V., Grunhut, J., Walborn, N. R., Barbá, R. H., Gagné, M., García-Melendo, E., Jose, J., Moffat, A. F. J., Nazé, Y., Neiner, C., Pellerin, A., Penadés Ordaz, M., Shultz, M., Simón-Díaz, S., Sota, A.
        Monthly Notices of the Royal Astronomical Society 2012, 425 1278-1293

  62. The ARAUCARIA project: Grid-based quantitative spectroscopic study of massive blue stars in NGC 55

      — Castro, N., Urbaneja, M. A., Herrero, A., Garcia, M., Simón-Díaz, S., Bresolin, F., Pietrzyński, G., Kudritzki, R. -P., Gieren, W.
        Astronomy & Astrophysics 2012, 542 A79

  63. Spectroscopic and physical parameters of Galactic O-type stars. I. Effects of rotation and spectral resolving power in the spectral classification of dwarfs and giants

      — Markova, N., Puls, J., Scuderi, S., Simón-Díaz, S., Herrero, A.
        Astronomy & Astrophysics 2011, 530 A11

  64. The VLT-FLAMES Tarantula Survey. I. Introduction and observational overview

      — Evans, C. J. et al.
        Astronomy & Astrophysics 2011, 530 A108

  65. Detection of frequency spacings in the young O-type binary HD 46149 from CoRoT photometry

      — Degroote, P., Briquet, M., Auvergne, M., Simón-Díaz, S., Aerts, C., Noels, A., Rainer, M., Hareter, M., Poretti, E., Mahy, L., Oreiro, R., Vu\vckovi\'c, M., Smolders, K., Baglin, A., Baudin, F., Catala, C., Michel, E., Samadi, R.
        Astronomy & Astrophysics 2010, 519 A38

  66. Fluorescent Excitation of Balmer Lines in Gaseous Nebulae: Case D

      — Luridiana, V., Simón-Díaz, S., Cerviño, M., González Delgado, R. M., Porter, R. L., Ferland, G. J.
        Astrophysical Journal 2009, 691 1712-1728

  67. The VLT-FLAMES survey of massive stars: atmospheric parameters and rotational velocity distributions for B-type stars in the Magellanic Clouds

      — Hunter, I., Lennon, D. J., Dufton, P. L., Trundle, C., Simón-Díaz, S., Smartt, S. J., Ryans, R. S. I., Evans, C. J.
        Astronomy & Astrophysics 2008, 479 541-555

  68. Using HII region spectra to probe the ionizing radiation from massive stars

      — Simón-Díaz, S., García-Rojas, J., Stasińska, G., Esteban, C.
        arXiv e-prints 2008, arXiv:0802.0016

  69. Fourier method of determining the rotational velocities in OB stars

      — Simón-Díaz, S., Herrero, A.
        Astronomy & Astrophysics 2007, 468 1063-1073

  70. B-type supergiants in the Small Magellanic Cloud: rotational velocities and implications for evolutionary models

      — Dufton, P. L., Ryans, R. S. I., Simón-Díaz, S., Trundle, C., Lennon, D. J.
        Astronomy & Astrophysics 2006, 451 603-611

  71. Detailed spectroscopic analysis of the Trapezium cluster stars inside the Orion nebula. Rotational velocities, stellar parameters, and oxygen abundances

      — Simón-Díaz, S., Herrero, A., Esteban, C., Najarro, F.
        Astronomy & Astrophysics 2006, 448 351-366

  72. Faint C and O recombination lines in H II regions and large telescopes: The case of S311

      — García-Rojas, J., Esteban, C., Peimbert, A., Peimbert, M., Simon-Díaz, S., Rodríguez, M., Ruiz, M. T., Herrero, A.
        2005, 24 243-244

  73. The VLT-FLAMES survey of massive stars: Observations in the Galactic clusters NGC 3293, NGC 4755 and NGC 6611

      — Evans, C. J. et al.
        Astronomy & Astrophysics 2005, 437 467-482