Search Results - "Hogan, T M"
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A MECHANISM FOR STIMULATING AGN FEEDBACK BY LIFTING GAS IN MASSIVE GALAXIES
Published in The Astrophysical journal (20-10-2016)“…ABSTRACT Observation shows that nebular emission, molecular gas, and young stars in giant galaxies are associated with rising X-ray bubbles inflated by radio…”
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Shaken Snow Globes: Kinematic Tracers of the Multiphase Condensation Cascade in Massive Galaxies, Groups, and Clusters
Published in The Astrophysical journal (20-02-2018)“…We propose a novel method to constrain turbulence and bulk motions in massive galaxies, galaxy groups, and clusters, exploring both simulations and…”
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The Onset of Thermally Unstable Cooling from the Hot Atmospheres of Giant Galaxies in Clusters: Constraints on Feedback Models
Published in The Astrophysical journal (10-12-2017)“…We present accurate mass and thermodynamic profiles for 57 galaxy clusters observed with the Chandra X-ray Observatory. We investigate the effects of local…”
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The Origin of Molecular Clouds in Central Galaxies
Published in The Astrophysical journal (01-02-2018)“…We present an analysis of 55 central galaxies in clusters and groups with molecular gas masses and star formation rates lying between 10 8 and 10 11 M and 0.5…”
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Radiative efficiency, variability and Bondi accretion on to massive black holes: the transition from radio AGN to quasars in brightest cluster galaxies
Published in Monthly notices of the Royal Astronomical Society (11-06-2013)“…We examine unresolved nuclear X-ray sources in 57 brightest cluster galaxies to study the relationship between nuclear X-ray emission and accretion on to…”
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X-Ray Scaling Relations of Early-type Galaxies
Published in The Astrophysical journal (10-04-2018)“…X-ray luminosity, temperature, gas mass, total mass, and their scaling relations are derived for 94 early-type galaxies (ETGs) using archival Chandra X-ray…”
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Extreme AGN feedback in the MAssive Cluster Survey: a detailed study of X-ray cavities at z>0.3
Published in Monthly notices of the Royal Astronomical Society (01-04-2012)“…We present the first statistical study of X-ray cavities in distant clusters of galaxies (z > 0.3). With the aim of providing further insight into how active…”
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A comprehensive study of the radio properties of brightest cluster galaxies
Published in Monthly notices of the Royal Astronomical Society (21-10-2015)“…We examine the radio properties of the brightest cluster galaxies (BCGs) in a large sample of X-ray selected galaxy clusters comprising the Brightest Cluster…”
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On the relation between mini-halos and AGN feedback in clusters of galaxies
Published in Monthly notices of the Royal Astronomical Society (01-12-2020)“…ABSTRACT A variety of large-scale diffuse radio structures have been identified in many clusters with the advent of new state-of-the-art facilities in radio…”
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Mass Distribution in Galaxy Cluster Cores
Published in The Astrophysical journal (01-03-2017)“…Many processes within galaxy clusters, such as those believed to govern the onset of thermally unstable cooling and active galactic nucleus feedback, are…”
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On the hunt for ultramassive black holes in brightest cluster galaxies
Published in Monthly notices of the Royal Astronomical Society (01-07-2012)“…We investigate where brightest cluster galaxies (BCGs) sit on the Fundamental Plane of black hole (BH) activity, an established relation between the X-ray…”
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12
Far-ultraviolet morphology of star-forming filaments in cool core brightest cluster galaxies
Published in Monthly notices of the Royal Astronomical Society (21-08-2015)“…We present a multiwavelength morphological analysis of star-forming clouds and filaments in the central (≲50 kpc) regions of 16 low-redshift (z < 0.3) cool…”
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A non-thermal study of the brightest cluster galaxy NGC 1275 – the Gamma-Radio connection over four decades
Published in Monthly notices of the Royal Astronomical Society (11-08-2014)“…Emission from the active nucleus in the core of the brightest cluster galaxy of the Perseus cluster, NGC 1275, has varied dramatically over the past four…”
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The most massive black holes on the Fundamental Plane of black hole accretion
Published in Monthly notices of the Royal Astronomical Society (01-02-2018)“…Abstract We perform a detailed study of the location of brightest cluster galaxies (BCGs) on the Fundamental Plane of black hole (BH) accretion, which is an…”
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Close entrainment of massive molecular gas flows by radio bubbles in the central galaxy of Abell 1795
Published in Monthly notices of the Royal Astronomical Society (01-12-2017)“…Abstract We present new ALMA observations tracing the morphology and velocity structure of the molecular gas in the central galaxy of the cluster Abell 1795…”
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STORM IN A “TEACUP”: A RADIO-QUIET QUASAR WITH ≈10 kpc RADIO-EMITTING BUBBLES AND EXTREME GAS KINEMATICS
Published in The Astrophysical journal (10-02-2015)“…We present multi-frequency (1-8 GHz) Very Large Array data, combined with VIsible MultiObject Spectrograph integral field unit data and Hubble Space Telescope…”
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MOLECULAR GAS ALONG A BRIGHT Hα FILAMENT IN 2A 0335+096 REVEALED BY ALMA
Published in The Astrophysical journal (01-12-2016)“…ABSTRACT We present ALMA CO(1–0) and CO(3–2) observations of the brightest cluster galaxy (BCG) in the 2A 0335+096 galaxy cluster ( z = 0.0346). The total…”
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18
Thermally Unstable Cooling Stimulated by Uplift: The Spoiler Clusters
Published in The Astrophysical journal (01-07-2020)“…Chandra X-ray observations are analyzed for five galaxy clusters whose atmospheric cooling times, entropy parameters, and ratios of cooling time to freefall…”
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High radio-frequency properties and variability of brightest cluster galaxies
Published in Monthly notices of the Royal Astronomical Society (21-10-2015)“…We consider the high radio-frequency (15–353 GHz) properties and variability of 35 brightest cluster galaxies (BCGs). These are the most core-dominated sources…”
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Chandra X-ray observations of the hyper-luminous infrared galaxy IRAS F15307+3252
Published in Monthly notices of the Royal Astronomical Society (11-01-2017)“…Hyper-luminous infrared galaxies (HyLIRGs) lie at the extreme luminosity end of the IR galaxy population with LIR > 10^sup 13^ L... They are thought to be…”
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