activity
20002023
most citedThe Hot and Energetic Universe: A White Paper presenting the science theme motivating the Athena+ mission

395 citations · 7.9k across the 186 of their papers we have counts for

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Showing astro-ph.GAShow all

50 papers · 1 filter

astro-ph.GA2023★ 3 cited

Exploring chemical enrichment of the intracluster medium with the Line Emission Mapper

François Mernier, Yuanyuan Su, Maxim Markevitch +27

Synthesized in the cores of stars and supernovae, most metals disperse over cosmic scales and are ultimately deposited well outside the gravitational potential of their host galaxi…

astro-ph.GA2023★ 5 cited

Powerful Radio Sources in the Southern Sky. II. A SWIFT X-Ray Perspective

F. Massaro, S. V. White, A. Paggi +18

We recently constructed the G4Jy-3CRE, a catalog of extragalactic radio sources based on the GLEAM 4-Jy (G4Jy) sample, with the aim of increasing the number of powerful radio galax…

astro-ph.GA2023★ 29 cited

X-ray metal line emission from the hot circumgalactic medium: probing the effects of supermassive black hole feedback

Nhut Truong, Annalisa Pillepich, Dylan Nelson +15

We derive predictions from state-of-the-art cosmological galaxy simulations for the spatial distribution of the hot circumgalactic medium (CGM, ) through its…

astro-ph.GA2023

AMUSE-antlia I: Nuclear X-ray properties of early-type galaxies in a dynamically young galaxy cluster

Zhensong Hu, Yuanyuan Su, Zhiyuan Li +14

To understand the formation and growth of supermassive black holes (SMBHs) and their co-evolution with host galaxies, it is essential to know the impact of environment on the activ…

astro-ph.GA2023★ 8 cited

Powerful Radio Sources in the Southern Sky. I. Optical Identifications

F. Massaro, S. V. White, A. Garcia-Perez +18

Since the early sixties, our view of radio galaxies and quasars has been drastically shaped by discoveries made thanks to observations of radio sources listed in the Third Cambridg…

astro-ph.GA2023★ 6 cited

Mapping the imprints of stellar and AGN feedback in the circumgalactic medium with X-ray microcalorimeters

Gerrit Schellenberger, Ákos Bogdán, John A. ZuHone +24

The Astro2020 Decadal Survey has identified the mapping of the circumgalactic medium (CGM, gaseous plasma around galaxies) as a key objective. We explore the prospects for characte…

astro-ph.GA2023★ 19 cited

Resonant scattering of the OVII X-ray emission line in the circumgalactic medium of TNG50 galaxies

Dylan Nelson, Chris Byrohl, Anna Ogorzalek +15

We study the impact of resonantly scattered X-ray line emission on the observability of the hot circumgalactic medium (CGM) of galaxies. We apply a Monte Carlo radiative transfer p…

astro-ph.GA2023★ 9 cited

Circumgalactic Medium on the Largest Scales: Detecting X-ray Absorption Lines with Large-Area Microcalorimeters

Akos Bogdan, Ildar Khabibullin, Orsolya Kovacs +22

The circumgalactic medium (CGM) plays a crucial role in galaxy evolution as it fuels star formation, retains metals ejected from the galaxies, and hosts gas flows in and out of gal…

astro-ph.GA2023★ 20 cited

Evidence for heavy seed origin of early supermassive black holes from a z~10 X-ray quasar

Akos Bogdan, Andy Goulding, Priyamvada Natarajan +9

Observations of quasars reveal that many supermassive black holes (BHs) were in place less than 700 million years after the Big Bang. However, the origin of the first BHs remains a…

astro-ph.GA2022★ 2 cited

Powerful yet lonely: Is 3C 297 a high-redshift fossil group?

Valentina Missaglia, Juan P. Madrid, Mischa Schirmer +8

The environment of the high-redshift (z=1.408), powerful radio-loud galaxy 3C 297 has several distinctive features of a galaxy cluster. Among them, a characteristic halo of hot gas…

astro-ph.GA2022★ 5 cited

The cavity of 3CR 196.1: H emission spatially associated with an X-ray cavity

A. Jimenez-Gallardo, E. Sani, F. Ricci +20

We present a multifrequency analysis of the radio galaxy 3CR 196.1 (), associated with the brightest galaxy of the cool core cluster CIZAJ0815.4-0303. This nearby radio…

astro-ph.GA2022★ 26 cited

Chemical abundances in the outskirts of nearby galaxy groups measured with joint Suzaku and Chandra observations

Arnab Sarkar, Yuanyuan Su, Nhut Truong +5

We report results from deep Suzaku and mostly snapshot Chandra observations of four nearby galaxy groups: MKW4, Antlia, RXJ1159+5531, and ESO3060170. Their peak temperatures vary o…

astro-ph.GA2022★ 15 cited

AGN feedback duty cycle in Planck SZ selected clusters using Chandra observations

V. Olivares, Y. Su, P. Nulsen +5

We present a systematic study of X-ray cavities using archival Chandra observations of nearby galaxy clusters selected by their Sunyaev-Zel'dovich (SZ) signature in the Planck surv…

astro-ph.GA2022★ 5 cited

Resilience of Sloshing Cold Fronts against Subsequent Minor Mergers

Iraj Vaezzadeh, Elke Roediger, Claire Cashmore +8

Minor mergers are common in galaxy clusters. They have the potential to create sloshing cold fronts (SCFs) in the intracluster medium (ICM) of the cluster. However, the resilience…

astro-ph.GA2022★ 3 cited

Testing galaxy feedback models with the first resolved profiles of the circumgalactic medium

Urmila Chadayammuri, Akos Bogdan, Benjamin Oppenheimer +3

The hot ( K) phase of the circumgalactic medium (CGM) contains a large fraction of baryons in galaxies. It also retains signatures of the processes that shaped the galaxies,…

astro-ph.GA2022★ 5 cited

Chandra view of Abell 407: the central compact group of galaxies and the interaction between the radio AGN and the ICM

Chao Geng, Chong Ge, Dharam V. Lal +8

Abell 407 (A407) is a unique galaxy cluster hosting a central compact group of nine galaxies (named as 'Zwicky's Nonet'; G1 - G9 in this work) within a 30 kpc radius region. The cl…

astro-ph.GA2021

Predictions for the X-ray circumgalactic medium of edge-on discs and spheroids

Anna Nica, Benjamin D. Oppenheimer, Robert A. Crain +5

We investigate how the X-ray circumgalactic medium (CGM) of present-day galaxies depends on galaxy morphology and azimuthal angle using mock observations generated from the EAGLE c…

astro-ph.GA2021★ 33 cited

The AGN Fraction in Dwarf Galaxies from eROSITA: First Results and Future Prospects

Lilikoi J. Latimer, Amy E. Reines, Akos Bogdan +1

Determining the fraction of nearby dwarf galaxies hosting massive black holes (BHs) can inform our understanding of the origin of "seed" black holes at high redshift. Here we searc…

astro-ph.GA2021★ 4 cited

Multi-scale feedback and feeding in the closest radio galaxy Centaurus A

B. McKinley, S. J. Tingay, M. Gaspari +12

Supermassive black holes and supernovae explosions at the centres of active galaxies power cycles of outflowing and inflowing gas that affect galactic evolution and the overall str…

astro-ph.GA2021★ 6 cited

Exploring Gravitationally-Lensed X-ray AGN Behind the RELICS clusters

Akos Bogdan, Orsolya E. Kovacs, Christine Jones +5

Although observations of high-redshift quasars demonstrate that many supermassive black holes (BHs) reached large masses within one billion years after the Big Bang, the origin of…

astro-ph.GA2021★ 5 cited

Raining in MKW 3s: a Chandra-MUSE analysis of X-ray cold filaments around 3CR 318.1

A. Jimenez-Gallardo, F. Massaro, B. Balmaverde +23

We present the analysis of X-ray and optical observations of gas filaments observed in the radio source 3CR 318.1, associated with NGC 5920, the Brightest Cluster Galaxy (BCG) of M…

astro-ph.GA2021★ 31 cited

Downstream depolarization in the Sausage relic: a 1-4 GHz Very Large Array study

G. Di Gennaro, R. J. van Weeren, L. Rudnick +10

Radio relics are elongated sources related to shocks driven by galaxy cluster merger events. Although these objects are highly polarized at GHz frequencies (), high-r…

astro-ph.GA2020★ 6 cited

Peering Into the Extended X-ray Emission on Megaparsec Scale in 3C 187

A. Paggi, F. Massaro, H. A. Pena-Herazo +7

Context. The diffuse X-ray emission surrounding radio galaxies is generally interpreted either as due to inverse Compton scattering of non-thermal radio-emitting electrons on the C…

astro-ph.GA2020★ 11 cited

Joint Suzaku and Chandra observations of the MKW4 galaxy group out to the virial radius

Arnab Sarkar, Yuanyuan Su, Scott Randall +5

We present joint Suzaku and Chandra observations of MKW4. With a global temperature of 1.6 keV, MKW4 is one of the smallest galaxy groups that have been mapped in X-rays out to the…