148 citations · 1.1k across the 20 of their papers we have counts for
20 papers
QSOFEED: The relationship between star formation and AGN Feedback
Patricia S. Bessiere, Cristina Ramos Almeida, Luke R. Holden +2
Large-scale cosmological simulations suggest that feedback from active galactic nuclei (AGN) plays a crucial role in galaxy evolution. In this study, we directly test this hypothes…
Investigating the impact of quasar-driven outflows on galaxies at redshift 0.3-0.4
K. Hervella Seoane, C. Ramos Almeida, J. A. Acosta Pulido +3
We present a detailed study of the kinematics of 19 QSO2s in the range 0.3<z<0.41 and [OIII] luminosities L. We aim at advancing our understanding…
Galaxy interactions are the dominant trigger for local type 2 quasars
J. C. S. Pierce, C. Tadhunter, C. Ramos Almeida +8
The triggering mechanism for the most luminous, quasar-like active galactic nuclei (AGN) remains a source of debate, with some studies favouring triggering via galaxy mergers, but…
Absence of nuclear polycyclic aromatic hydrocarbon emission from a compact starburst: The case of the type-2 quasar Mrk 477
C. Ramos Almeida, D. Esparza-Arredondo, O. Gonzalez-Martin +11
Mrk 477 is the closest type-2 quasar (QSO2), at a distance of 163 Mpc. This makes it an ideal laboratory for studying the interplay between nuclear activity and star formation with…
BASS XXII: The BASS DR2 AGN Catalog and Data
Michael J. Koss, Claudio Ricci, Benny Trakhtenbrot +32
We present the AGN catalog and optical spectroscopy for the second data release of the Swift BAT AGN Spectroscopic Survey (BASS DR2). With this DR2 release we provide 1425 optical…
BASS XXV: DR2 Broad-line Based Black Hole Mass Estimates and Biases from Obscuration
Julian E. Mejıa-Restrepo, Benny Trakhtenbrot, Michael J. Koss +26
We present measurements of broad emission lines and virial estimates of supermassive black hole masses () for a large sample of ultra-hard X-ray selected active galactic nu…
Spatially resolved evidence of the impact of quasar driven outflows on recent star formation : The case of Mrk 34
Patricia. S. Bessiere, Cristina Ramos Almeida
We present the results of our spatially resolved investigation into the interplay between the ages of the stellar populations and the kinematics of the warm ionised outflows in the…
Do AGN triggering mechanisms vary with radio power? II. The importance of mergers as a function of radio power and optical luminosity
J. C. S. Pierce, C. N. Tadhunter, Y. Gordon +7
Investigation of the triggering mechanisms of radio AGN is important for improving our general understanding of galaxy evolution. In the first paper in this series, detailed morpho…
The diverse cold molecular gas contents, morphologies, and kinematics of type-2 quasars as seen by ALMA
C. Ramos Almeida, M. Bischetti, S. Garcia-Burillo +8
We present CO(2-1) and adjacent continuum observations of 7 nearby radio-quiet type-2 quasars (QSO2s) obtained with ALMA at ~0.2" resolution (370 pc at z~0.1). The CO morphologies…
Do AGN triggering mechanisms vary with radio power? I.Optical morphologies of radio-intermediate HERGs
Jonathon C. S. Pierce, Clive N. Tadhunter, Cristina Ramos Almeida +2
Radio AGNs with intermediate radio powers are capable of driving multi-phase outflows in galaxy bulges, and are also more common than their high-radio-power counterparts. In-depth…
Galaxy wide radio induced feedback in a radio quiet quasar
Montse Villar Martin, Bjorn Emonts, Antonio Cabrera Lavers +7
We report the discovery of a radio quiet type 2 quasar (SDSS J165315.06+234943.0 nicknamed the "Beetle" at z=0.103) with unambiguous evidence for active galactic nucleus (AGN) radi…
An infrared view of AGN feedback in a type-2 quasar: the case of the Teacup galaxy
Cristina Ramos Almeida, Javier Piqueras López, Montserrat Villar-Martín +1
We present near-infrared integral field spectroscopy data obtained with VLT/SINFONI of "the Teacup galaxy". The nuclear K-band (1.95-2.45 micron) spectrum of this radio-quiet type-…
Young stellar populations in type II quasars: timing the onset of star formation and nuclear activity
Patricia S Bessiere, Clive N Tadhunter, Cristina Ramos Almeida +2
Despite the emerging morphological evidence that luminous quasar-like AGN are triggered in galaxy mergers, the natures of the triggering mergers and the order of events in the trig…
Ionized outflows in luminous type 2 AGNs at z<0.6: no evidence for significant impact on the host galaxies
Montse Villar-Martin, Santiago Arribas, Bjorn Emonts +5
We investigate the presence of extended ionized outflows in 18 luminous type 2 AGNs (11 quasars and 7 high luminosity Seyfert 2s) at 0.3<z<0.6 based on VLT-FORS2 spectroscopy. We i…
Jet-driven outflows of ionised gas in the nearby radio galaxy 3C293
Elizabeth K. Mahony, J. B. Raymond Oonk, Raffaella Morganti +5
Fast outflows of gas, driven by the interaction between the radio-jets and ISM of the host galaxy, are being observed in an increasing number of galaxies. One such example is the n…
Clear evidence for the early triggering of a luminous quasar-like AGN in a major, gas rich merger
Patricia S. Bessiere, Clive N. Tadhunter, Cristina Ramos Almeida +1
We present deep, intermediate resolution, long slit Gemini GMOS-S optical spectra of the SDSS type II quasar J002531-104022, which is a highly disturbed system currently undergoing…
The environments of luminous radio galaxies and type-2 quasars
Cristina Ramos Almeida, P. S. Bessiere, C. Tadhunter +5
We present the results of a comparison between the environments of 1) a complete sample of 46 southern 2Jy radio galaxies at intermediate redshifts (0.05 < z < 0.7), 2) a complete…
The importance of galaxy interactions in triggering type II quasar activity
Patricia Bessiere, Clive N. Tadhunter, Cristina Ramos Almeida +1
We present deep Gemini GMOS-S optical broad-band images for a complete sample of 20 SDSS selected type II quasars with redshifts 0.3 < z < 0.41 and [OIII] emission line luminositie…
Mergers and interactions in SDSS type 2 quasars at z~0.3-0.4. SDSS J143027.66-005614.8: a case study
Montse Villar-Martin, Antonio Cabrera-Lavers, Patricia Bessiere +3
We present a compilation of HST images of 58 luminous SDSS type 2 AGNs at 0.3<z<0.4. 42 of them are type 2 quasars, which are a good representation of all optically selected SDSS t…
Are luminous radio-loud active galactic nuclei triggered by galaxy interactions?
C. Ramos Almeida, P. S. Bessiere, C. Tadhunter +6
We present the results of a comparison between the optical morphologies of a complete sample of 46 southern 2Jy radio galaxies at intermediate redshifts (0.05<z<0.7) and those of t…