430 citations · 7.5k across the 119 of their papers we have counts for
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Still alive and kicking: A significant outburst in changing-look AGN Mrk 1018
R. Brogan, M. Krumpe, D. Homan +13
Changing-look active galactic nuclei (CL-AGN) have been observed to change optical spectral type. Mrk 1018 is unique: first classified as a type 1.9 Seyfert galaxy, it transitioned…
Supermassive Black Hole Winds in X-rays: SUBWAYS. II. HST UV spectroscopy of winds at intermediate redshifts
M. Mehdipour, G. A. Kriss, M. Brusa +35
We present a UV spectroscopic study of ionized outflows in 21 active galactic nuclei (AGN), observed with the HST. The targets of the SUBWAYS sample were selected with the aim to p…
Supermassive Black Hole Winds in X-rays -- SUBWAYS. I. Ultra-fast outflows in QSOs beyond the local Universe
G. A. Matzeu, M. Brusa, G. Lanzuisi +48
We present a new X-ray spectroscopic study of luminous () active galactic nuclei (AGNs) at intermed…
GBT/MUSTANG-2 9" resolution imaging of the SZ effect in MS0735.6+7421: Confirmation of the SZ Cavities through direct imaging
John Orlowski-Scherer, Saianeesh K. Haridas, Luca Di Mascolo +14
Mechanical feedback from active galactic nuclei (AGN) is thought to be the dominant feedback mechanism quenching cooling flows and star formation in galaxy cluster cores. However,…
The NuSTAR and Chandra view of CL 0217+70 and Its Tell-Tale Radio Halo
Ayşegül Tümer, Daniel R. Wik, Xiaoyuan Zhang +11
Mergers of galaxy clusters are the most energetic events in the universe, driving shock and cold fronts, generating turbulence, and accelerating particles that create radio halos a…
The NuSTAR, XMM-Newton, and Suzaku view of A3395 at the intercluster filament interface
Aysegul Tumer, Daniel R. Wik, Massimo Gaspari +4
Galaxy clusters are the largest virialized objects in the universe. Their merger dynamics and their interactions with the cosmic filaments that connect them are important for our u…
Exploring the multiphase medium in MKW 08: from the central active galaxy up to cluster scales
A. Tümer, F. Tombesi, H. Bourdin +3
The study of the brightest cluster galaxy (BCG) coronae embedded in noncool core (NCC) galaxy clusters is crucial to understand the BCG's role in galaxy cluster evolution as well a…
Nustar Measurement Of Coronal Temperature In Two Luminous, High Redshift Qsos
G. Lanzuisi, R. Gilli, M. Cappi +13
X-ray emission from AGN is believed to be produced via Comptonization of optical/UV seed photons emitted by the accretion disk, up-scattered by hot electrons in a corona surroundin…
Supermassive Black Hole Feedback
Mateusz Ruszkowski, Daisuke Nagai, Irina Zhuravleva +23
Understanding the processes that drive galaxy formation and shape the observed properties of galaxies is one of the most interesting and challenging frontier problems of modern ast…
The Impact of Radio AGN Bubble Composition on the Dynamics and Thermal Balance of the Intracluster Medium
H. -Y. K. Yang, M. Gaspari, C. Marlow
Feeding and feedback of active galactic nuclei (AGN) are critical for understanding the dynamics and thermodynamics of the intracluster medium (ICM) within the cores of galaxy clus…
AGN Feedback in Galaxy Group 3C 88: Cavities, Shock and Jet Reorientation
Wenhao Liu, Ming Sun, Paul Nulsen +7
We present results from the deep Chandra observation (105 ksec), together with new Giant Metrewave Radio Telescope and Very Large Array data of the AGN outburst in the radio-loud g…
Revisiting the Cooling Flow Problem in Galaxies, Groups, and Clusters of Galaxies
M. McDonald, M. Gaspari, B. R. McNamara +1
We present a study of 107 galaxies, groups, and clusters spanning ~3 orders of magnitude in mass, ~5 orders of magnitude in central galaxy star formation rate (SFR), ~4 orders of m…
Kinetic and radiative power from optically thin accretion flows
A. Sadowski, M. Gaspari
We perform a set of general relativistic, radiative, magneto-hydrodynamical simulations (GR-RMHD) to study the transition from radiatively inefficient to efficient state of accreti…
Unifying the micro and macro properties of AGN feeding and feedback
M. Gaspari, A. Sadowski
We unify the feeding and feedback of supermassive black holes with the global properties of galaxies, groups, and clusters, by linking for the first time the physical mechanical ef…
Shaping the X-ray spectrum of galaxy clusters with AGN feedback and turbulence
M. Gaspari
The hot plasma filling galaxy clusters emits copious X-ray radiation. The classic unheated and unperturbed cooling flow model predicts dramatic cooling rates and an isobaric X-ray…
The relation between gas density and velocity power spectra in galaxy clusters: qualitative treatment and cosmological simulations
I. Zhuravleva, E. Churazov, A. A. Schekochihin +6
We address the problem of evaluating the power spectrum of the velocity field of the ICM using only information on the plasma density fluctuations, which can be measured today by C…
The Hot and Energetic Universe: AGN feedback in galaxy clusters and groups
J. H. Croston, J. S. Sanders, S. Heinz +25
Mechanical feedback via Active Galactic Nuclei (AGN) jets in the centres of galaxy groups and clusters is a crucial ingredient in current models of galaxy formation and cluster evo…
The Hot and Energetic Universe: The astrophysics of galaxy groups and clusters
S. Ettori, G. W. Pratt, J. de Plaa +28
As the nodes of the cosmic web, clusters of galaxies trace the large-scale distribution of matter in the Universe. They are thus privileged sites in which to investigate the comple…
The Hot and Energetic Universe: A White Paper presenting the science theme motivating the Athena+ mission
Kirpal Nandra, Didier Barret, Xavier Barcons +237
This White Paper, submitted to the recent ESA call for science themes to define its future large missions, advocates the need for a transformational leap in our understanding of tw…
Unification of X-ray winds in Seyfert galaxies: from ultra-fast outflows to warm absorbers
F. Tombesi, M. Cappi, J. N. Reeves +4
The existence of ionized X-ray absorbing layers of gas along the line of sight to the nuclei of Seyfert galaxies is a well established observational fact. This material is systemat…