110 citations · 717 across the 21 of their papers we have counts for
21 papers · 1 filter
Radio-dust connection in quasars driven by powerful ionised outflows
V. A. Fawcett, C. M. Harrison, T. Costa +8
Feedback from dusty quasars is thought to be a key driver in galaxy evolution. Multiple studies have reported a link between dust extinction and radio emission in quasars, possibly…
The Quasar Feedback Survey: Ionised Outflows in type 2 QSOs with MUSE data
M. Bianchin, C. M. Harrison, T. Costa +13
We study ionised gas properties in a sample of 18 luminous (log L erg/s) obscured QSOs at 0.085<z<0.2 observed with VLT/MUSE as part of the multi-wavelength Quasa…
A quasar-galaxy merger at : rapid host growth via accretion of two massive satellite galaxies
Roberto Decarli, Federica Loiacono, Emanuele Paolo Farina +38
We present JWST/NIRSpec Integral Field Spectroscopy in the rest-frame optical bands of the system PJ308-21, a quasar at caught as its host galaxy interacts with companio…
A quasar-galaxy merger at : black hole mass and quasar properties from the NIRSpec spectrum
Federica Loiacono, Roberto Decarli, Marco Mignoli +31
We present JWST/NIRSpec integral field data of the quasar PJ308-21 at . As shown by previous ALMA and HST imaging, the quasar has two companion sources, interacting with…
Quasar Feedback Survey: molecular gas affected by central outflows and by ~10 kpc radio lobes reveal dual feedback effects in `radio quiet' quasars
A. Girdhar, C. M. Harrison, V. Mainieri +17
We present a study of molecular gas, traced via CO (3-2) from ALMA data, of four z< 0.2, `radio quiet', type 2 quasars (log [L(bol)/(erg/s)] = 45.3 - 46.2; log [L(1.4 GHz)/(W/Hz)]…
The Quasar Feedback Survey: characterising CO excitation in quasar host galaxies
S. J. Molyneux, G. Calistro Rivera, C. De Breuck +15
We present a comprehensive study of the molecular gas properties of 17 Type 2 quasars at 0.2 from the Quasar Feedback Survey (L > ), sel…
SPICE: the connection between cosmic reionisation and stellar feedback in the first galaxies
Aniket Bhagwat, Tiago Costa, Benedetta Ciardi +2
We present SPICE, a new suite of RHD cosmological simulations targeting the epoch of reionisation. The goal of these simulations is to systematically probe a variety of stellar fee…
The luminosity-area relation of quasars' Ly nebulae
Fabrizio Arrigoni Battaia, Aura Obreja, Tiago Costa +2
Cool (~K) gas is commonly observed around quasars as traced by extended Ly emission. These large-scale nebulae are usually studied using circularly averaged sur…
HYPERION. Interacting companion and outflow in the most luminous quasar
R. Tripodi, J. Scholtz, R. Maiolino +11
We present ALMA deep observations of the [CII] 158 m emission line and the continuum at 253 GHz and 99 GHz towards SDSS J0100+2802 at , the most luminous quasi-stel…
A SPectroscopic survey of biased halos In the Reionization Era (ASPIRE): JWST Reveals a Filamentary Structure around a z=6.61 Quasar
Feige Wang, Jinyi Yang, Joseph F. Hennawi +56
We present the first results from the JWST ASPIRE program (A SPectroscopic survey of biased halos In the Reionization Era). This program represents an imaging and spectroscopic sur…
A SPectroscopic survey of biased halos In the Reionization Era (ASPIRE): A First Look at the Rest-frame Optical Spectra of Quasars Using JWST
Jinyi Yang, Feige Wang, Xiaohui Fan +53
Studies of rest-frame optical emission in quasars at have historically been limited by the wavelengths accessible by ground-based telescopes. The James Webb Space Telescope (…
Accurate dust temperature and star formation rate in the most luminous quasar in the HYPerluminous quasars at the Epoch of ReionizatION (HYPERION) sample
Roberta Tripodi, Chiara Feruglio, Francisca Kemper +14
We present ALMA Band 9 continuum observation of the ultraluminous quasi-stellar object (QSO) SDSS J0100+2802, providing a detection at GHz. SDSS J0100+2802 is…
Red quasars blow out molecular gas from galaxies during the peak of cosmic star formation
H. R. Stacey, T. Costa, J. P. McKean +4
Recent studies have suggested that red quasars are a phase in quasar evolution when feedback from black hole accretion evacuates obscuring gas from the nucleus of the host galaxy.…
The X-shooter/ALMA Sample of Quasars in the Epoch of Reionization. II. Black Hole Masses, Eddington Ratios, and the Formation of the First Quasars
Emanuele Paolo Farina, Jan-Torge Schindler, Fabian Walter +20
We present measurements of black hole masses and Eddington ratios for a sample of 38 bright (M < -24.4 mag) quasars at 5.8 < z < 7.5, derived from VLT/X-shooter near-IR sp…
Cosmological simulations predict that AGN preferentially live in gas-rich, star-forming galaxies despite effective feedback
Samuel Ruthven Ward, Chris Harrison, Tiago Costa +1
Negative feedback from active galactic nuclei (AGN) is the leading mechanism for the quenching of massive galaxies in the vast majority of modern galaxy evolution models. However,…
Quasar Feedback Survey: Multi-phase outflows, turbulence and evidence for feedback caused by low power radio jets inclined into the galaxy disk
A. Girdhar, C. M. Harrison, V. Mainieri +18
We present a study of a luminous, z=0.15, type-2 quasar (log [L([OIII])/(erg/s)]=42.8) from the Quasar Feedback Survey. It is classified as 'radio-quiet' (log [L(1.4 GHz)/(W/Hz)]=2…
The effects of AGN feedback on the structural and dynamical properties of Milky Way-mass galaxies in cosmological simulations
Dimitrios Irodotou, Francesca Fragkoudi, Ruediger Pakmor +6
Feedback from active galactic nuclei (AGN) has become established as a fundamental process in the evolution of the most massive galaxies. Its impact on Milky Way (MW)-mass systems,…
Resolved Neutral Outflow from a Lensed Dusty Star Forming Galaxy at z=2.09
Kirsty M. Butler, Paul P. van der Werf, Matus Rybak +9
We report the detection of a massive neutral gas outflow in the z=2.09 gravitationally lensed Dusty Star-Forming Galaxy HATLASJ085358.9+015537 (G09v1.40), seen in absorption with t…
The multiwavelength properties of red QSOs -- Evidence for dusty winds as the origin of QSO reddening
G. Calistro-Rivera, D. M. Alexander, D. J. Rosario +11
Fundamental differences in the radio properties of red quasars (QSOs), as compared to blue QSOs, have been recently discovered, positioning them as a potential key population in th…
The Quasar Feedback Survey: Discovering hidden Radio-AGN and their connection to the host galaxy ionised gas
M. E. Jarvis, C. M. Harrison, V. Mainieri +18
We present the first results from the Quasar Feedback Survey, a sample of 42 z<0.2, [O III] luminous AGN (L[O III]>10^42.1 ergs/s) with moderate radio luminosities (i.e. L(1.4GHz)>…
High molecular gas content and star formation rates in local galaxies that host quasars, outflows and jets
M. E. Jarvis, C. M. Harrison, V. Mainieri +11
We use a sample of powerful z~0.1 type 2 quasars ('obscured'; log[L(AGN)/erg/s]>~45), which host kiloparsec-scale ionized outflows and jets, to identify possible signatures of AGN…