QSOFEED Publications

Jet-induced molecular gas excitation and turbulence in the Teacup

Audibert et al. 2023, A&A, 671, L12

The compact radio jet (0.8 kpc) in the center of the Teacup galaxy blows a lateral turbulent wind in the cold dense gas, as predicted by hydrodynamical simulations of jet-gas interactions. Credit: HST/ALMA/VLA/M. Meenakshi/D. Mukherjee/A. Audibert.

 

Absence of nuclear polycyclic aromatic hydrocarbon emission from a compact starburst: The case of the type-2 quasar Mrk 477

Ramos Almeida et al. 2023, A&A, 669, L5

UV and optical HST images of Mrk 477. The FOC F275W image of the central 3.5″×3.5″ of the galaxy is shown in the left panel, which includes an inset of the central 1″×1″ region. The WFPC2 F606W image of the central 9.5″×8.6″ is shown in the right panel. The CanariCam and IRS SL slits are shown as solid cyan and pink lines.

GTC/CanariCam nuclear spectrum of Mrk 477 (0.5″ ∼ 400 pc; solid black line). Weak silicate absorption and [S IV]λ10.51 μm emission are the only spectral features detected. The solid red line corresponds to the IRS spectrum (3.6″ ∼ 2.7 kpc), which, in addition to the ionized and warm molecular hydrogen emission lines, shows clear PAH emission bands at 6.2, 7.7, 8.6, and 11.3 μm.

 

Warm molecular and ionized gas kinematics in the Type-2 quasar J0945+1737. 

Speranza et al. 2022, A&A, 665, A55

Flux map of the Paα emission between − 700 and − 300 km/s with fitted ellipses. The one used to measure the outflow extent in red and others in white. Black contours correspond to 3, 15, 30, 60 σ of the radio VLA 6 GHz high resolution data (∼0.25” beam).

Ionized mass outflow rates versus bolometric luminosities compiled from the literature by Fiore et al. (2017) for a sample of AGN with z<0.5 (black points), and by Musiimenta et al. (in prep.) for AGN at z>0.5 (grey points). The red and blue stars correspond to the outflow rates calculated for J0945 using electron densities of 662 cm−3 and 200 cm−3.

 

Spatially resolved evidence of the impact of quasar driven outflows on recent star formation : The case of Mrk 34.

Bessiere & Ramos Almeida, 2022, MNRAS, 512, L54-L59

YSP distribution overlaid with contours of V02 (blue) with contour levels −950, −850, and −750 km/s and V98 (red) with contour levels 750, 850, 950, and 1050 km/s (left panel). The right-hand panel shows the same but with contours of W80 overlaid with levels 600, 700, 800, and 900 km/s.

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The diverse cold molecular gas contents, morphologies, and kinematics of type-2 quasars as seen by ALMA.

Ramos Almeida et al. 2022, A&A, 658, A155

CO(2-1) moment 0 maps of the QSO2s with 1.3 mm continuum contours in pink.

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Do AGN triggering mechanisms vary with radio power? II. The importance of mergers as a function of radio power and optical luminosity.

Pierce et al. 2022, MNRAS, 510, 1163-1183

Proportions of QSO2s and control sample galaxies classed as disturbed, not disturbed or uncertain.

 

 

A near-infrared study of the multiphase outflow in the type-2 quasar J1509+0434.

Ramos Almeida et al. 2019, MNRAS, 487, L18-L23

Examples of emission line profiles extracted from GTC/EMIR near-infrared spectra showing a blueshifted broad component. The shaded areas indicate the wavelength ranges employed in the determination of the outflow sizes.

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An infrared view of AGN feedback in a type-2 quasar: the case of the Teacup galaxy.

Ramos Almeida et al. 2017, MNRAS, 470, 964-976

Flux, velocity and velocity dispersion maps of the narrow Paα emission of J1430+1339 (The Teacup) obtained from VLT/SINFONI observations.