The KESPRINT Consortium

The KESPRINT Consortium is a multi-national collaboration for the discovery, confirmation and characterization of planet candidates from the K2 and TESS space missions. Given the limited amount of telescope time, our natural focus is the detection of the most exciting objects, rather than attempting to provide complete catalogues.

We have three main scientific goals.

1) Measure the masses of rocky planets. This requires discovering planets with ultra-short orbits orbiting bright stars, so that these measurements are achievable with current instruments.

2) Discovery of low-density planets suitable for atmospheric characterization. While low-density Earth-size planets will be out of reach, our goal to search for low-density gaseous planets of any size.

3) To conduct a search for hot and habitable zone rocky planets around all the M-dwarfs in the K2 fields, which are brighter than I=13 mag.

Our team has several pipelines for the detection of planet candidates from the K2 and TESS raw light curves, and has been awarded competitive open time at international telescopes.

The Team

Full members (ordered by family name):

Simon Albrecht, Oscar Barragán, Paul Beck, Juan Cabrera, Ilaria Carleo, William D.Cochran, Szilard Csizmadia, Fei Dai, Hans Deeg, Jerome de Leon, Michael Endl, Anders Erikson, MassimiliaEsposito, Malcolm Fridlund, Davide Gandolfi, Iskra Georgieva, Sascha Grziwa, Eike W. Guenther, Artie P. Hatzes, Teruyuki Hirano, Marshall CJohnson, Petr Kabath, Peter Klagyivik, Emil Knudstrup, Judith Korth, Kristine Lam, John Livingston, Rafael Luque, Savita Mathur, Felipe Murgas, Norio Narita, Grzegorz Nowak, Enric Palle, Martin Pätzold, Carina M. Persson, Heike Rauer, Seth Redfield, Luisa MariSerrano, Marek Skarka, Alexis M. Smith, Vincent Van Eylen

Collaborative members:

Ahlam Al Qasim, Priyanka Chaturvedi, Alexander Chaushev, Elisa Goffo, Lucía Gonzalez C, Phillip J.MacQueen, Thomas Masseron, Alexandra Muresan, Hannah Osborne, Jaume Orell Miqu, Hendrik Schmerling, Jan Subjak

Telescope Resources

KESPRINT does not have any guaranteed time for the follow up efforts of planet candidates, and relies on open time applications. Nevertheless, our team has an excellent track record in this respect, and we regularly obtain time for:

  • AO, Speckle, and Lucky Imaging: AO188@Subaru Telescope, NESSI@WIYN, and FC@TCS

  • Seeing limited photometry: MUSCAT@Okayima, MUSCAT2@TCS, and CAMELOT@IAC80

  • Reconnaissance spectroscopy and moderate-precision radial velocity (3-10 m/s): FIES@NOT, and Tull@2.7m-McDonald Observatory

  • Highly stable spectrographs (~1 m/s): HARPS@3.6m-ESO, HARPS-N@TNG, HDS@SUBARU, CARMENES@CaHa, and HIRES@Keck


Latest KESPRINT papers

  1. 37 new validated planets in overlapping K2 campaigns
    de Leon, J.P.; Livingston, J.; Endl, M.; Cochran, W.D.; Hirano, T. et al.
    Monthly Notices of the Royal Astronomical Society, 508, 195-218 (2021)
  2. Masses and compositions of three small planets orbiting the nearby M dwarf L231-32 (TOI-270) and the M dwarf radius valley
    Van Eylen, V.; Astudillo-Defru, N.; Bonfils, X.; Livingston, J.; Hirano, T. et al.
    Monthly Notices of the Royal Astronomical Society, 507, 2154-2173 (2021)
  3. Hot planets around cool stars - two short-period mini-Neptunes transiting the late K-dwarf TOI-1260
    Georgieva, I.Y.; Persson, C.M.; Barragán, O.; Nowak, G.; Fridlund, M. et al.
    Monthly Notices of the Royal Astronomical Society, 505, 4684-4701 (2021)

Complete list of papers