146 citations · 834 across the 27 of their papers we have counts for
27 papers
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…
Connecting outflows with radio emission in active galactic nuclei at cosmic noon
Gabriele S. Ilha, C. M. Harrison, V. Mainieri +17
AGN feedback is a well known mechanism in the evolution of galaxies. One open question is the driving mechanism of galaxy-scale outflows. At low redshift, radio jets often interact…
Connection between steep radio spectral slopes and dust extinction in QSOs: evidence for outflow-driven shocks in dusty QSO
V. A. Fawcett, C. M. Harrison, D. M. Alexander +9
Recent studies have found a striking positive correlation between the amount of dust obscuration and enhanced radio emission in quasi-stellar objects (QSOs). However, what causes t…
Ubiquitous radio emission in quasars: predominant AGN origin and a connection to jets, dust and winds
G. Calistro-Rivera, D. M. Alexander, C. M. Harrison +16
We present a comprehensive study of the physical origin of radio emission in optical quasars at redshifts z < 2.5. We focus particularly on the associations between compact radio e…
Deconvolution of JWST/MIRI Images: Applications to an AGN Model and GATOS Observations of NGC 5728
M. T. Leist, C. Packham, D. J. V. Rosario +32
The superb image quality, stability and sensitivity of the JWST permit deconvolution techniques to be pursued with a fidelity unavailable to ground-based observations. We present a…
A striking relationship between dust extinction and radio detection in DESI QSOs: evidence for a dusty blow-out phase in red QSOs
V. A. Fawcett, D. M. Alexander, A. Brodzeller +39
We present the first eight months of data from our secondary target program within the ongoing Dark Energy Spectroscopic Instrument (DESI) survey. Our program uses a mid-infrared a…
A radio-jet driven outflow in the Seyfert 2 galaxy NGC 2110?
L. Peralta de Arriba, A. Alonso-Herrero, S. García-Burillo +16
We present a spatially-resolved study of the ionised gas in the central 2 kpc of the Seyfert 2 galaxy NGC 2110 and investigate the role of its moderate luminosity radio jet (kineti…
The X-ray polarisation of the Seyfert 1 galaxy IC 4329A
A. Ingram, M. Ewing, A. Marinucci +105
We present an X-ray spectro-polarimetric analysis of the bright Seyfert galaxy IC 4329A. The Imaging X-ray Polarimetry Explorer (IXPE) observed the source for ~500 ks, supported by…
The AGNIFS survey: spatially resolved observations of hot molecular and ionised outflows in nearby active galaxies
R. A. Riffel, T. Storchi-Bergmann, R. Riffel +17
We present the hot molecular and warm ionised gas kinematics for 33 nearby () X-ray selected active galaxies using the Hm and Br emiss…
A high angular resolution view of the PAH emission in Seyfert galaxies using JWST/MRS data
I. García-Bernete, D. Rigopoulou, A. Alonso-Herrero +16
Polycyclic Aromatic Hydrocarbons (PAHs) are carbon-based molecules that are ubiquitous in a variety of astrophysical objects and environments. In this work, we use JWST/MIRI MRS sp…
Low-power jet-ISM interaction in NGC 7319 revealed by JWST/MIRI MRS
M. Pereira-Santaella, J. Álvarez-Márquez, I. García-Bernete +8
We present JWST/MIRI MRS spectroscopy of NGC7319, the largest galaxy in the Stephan's Quintet, observed as part of the Early Release Observations (ERO). NGC7319 hosts a type 2 acti…
The DESI Survey Validation: Results from Visual Inspection of the Quasar Survey Spectra
David M. Alexander, Tamara M. Davis, E. Chaussidon +69
A key component of the Dark Energy Spectroscopic Instrument (DESI) survey validation (SV) is a detailed visual inspection (VI) of the optical spectroscopic data to quantify key sur…
Connecting radio emission to AGN wind properties with Broad Absorption Line Quasars
J. W. Petley, L. K. Morabito, D. M. Alexander +6
Broad Absorption Line Quasars (BALQSOs) show strong signatures of powerful outflows, with the potential to alter the cosmic history of their host galaxies. These signatures are onl…
Fundamental differences in the properties of red and blue quasars: measuring the reddening and accretion properties with X-shooter
V. A. Fawcett, D. M. Alexander, D. J. Rosario +4
We have recently found fundamental differences in the radio properties of red quasars when compared to typical blue quasars. In this paper we use X-shooter data, providing spectral…
The Close AGN Reference Survey (CARS): No obvious signature of AGN feedback on star formation, but subtle trends
I. Smirnova-Pinchukova, B. Husemann, T. A. Davis +17
[Abridged] Active Galactic Nuclei (AGN) are thought to be responsible for the suppression of star formation in massive ~10 M galaxies. While this process is a key fe…
Stellar populations in local AGNs: evidence for enhanced star formation in the inner 100pc
L. G. Dahmer-Hahn, R. Riffel, A. Rodríguez-Ardila +7
In modern models and simulations of galactic evolution, the star formation in massive galaxies is regulated by an ad hoc active galactic nuclei (AGN) feedback process. However, the…
The NuSTAR Extragalactic Survey of the James Webb Space Telescope North Ecliptic Pole Time-Domain Field
X. Zhao, F. Civano, F. M. Fornasini +17
We present the extragalactic survey of the () North Ecliptic Pole (NEP) Time-Domain Field. The survey covers a 0.16 deg…
SUPER V. ALMA continuum observations of z~2 AGN and the elusive evidence of outflows influencing star formation
I. Lamperti, C. M. Harrison, V. Mainieri +24
We study the impact of AGN ionised outflows on star formation in high-redshift AGN hosts, by combining NIR IFS observations, mapping the H emission and [OIII] outflows, with mat…
The nature of sub-millimetre galaxies II: an ALMA comparison of SMG dust heating mechanisms
B. Ansarinejad, T. Shanks, R. M. Bielby +5
We compare the contribution of Active Galactic Nuclei (AGN) and star-formation towards dust heating in sub-mm galaxies (SMGs). We have used ALMA at resolution to image a com…
The AGNIFS survey: distribution and excitation of the hot molecular and ionised gas in the inner kpc of nearby AGN hosts
R. A. Riffel, T. Storchi-Bergmann, R. Riffel +13
We use the Gemini NIFS instrument to map the Hm and Br flux distributions in the inner 0.04-2 kpc of a sample of 36 nearby active galaxies ($0.001\lesssim z\lesssim0…
The Galaxy Activity, Torus and Outflow Survey (GATOS) I. ALMA images of dusty molecular tori in Seyfert galaxies
S. García-Burillo, A. Alonso-Herrero, C. Ramos Almeida +32
We present the first results of the Galaxy Activity, Torus and Outflow Survey (GATOS), a project aimed at understanding the properties of the dusty molecular tori and their connect…
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…
KASHz: No evidence for ionised outflows instantaneously suppressing star formation in moderate luminosity AGN at -
J. Scholtz, C. M. Harrison, D. J. Rosario +9
As part of our KMOS AGN Survey at High-redshift (KASHz), we present spatially-resolved VLT/KMOS and VLT/SINFONI spectroscopic data and ALMA 870m continuum imaging of eight =1…
Do AGN really suppress star formation?
C. M. Harrison, D. M. Alexander, D. J. Rosario +2
Active galactic nuclei (AGN) are believed to regulate star formation inside their host galaxies through "AGN feedback". We summarise our on-going study of luminous AGN (z~0.2-3; L_…