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Galaxy mergers are capable of triggering both star formation and active galactic nuclei (AGN) and therefore may represent an important pathway in the co-evolution of galaxies and supermassive black holes (SMBHs). However, correlated…

Astrophysics of Galaxies · Physics 2017-11-29 R. Scott Barrows , Julia M. Comerford , Nadia L. Zakamska , Michael C. Cooper

Recent systematic searches for massive black holes (BHs) in local dwarf galaxies led to the discovery of a population of faint Active Galactic Nuclei (AGN). We investigate the agreement of the BH and AGN populations in the Illustris, TNG,…

The highly energetic outflows from Active Galactic Nuclei detected in X-rays are one of the most powerful mechanisms by which the central supermassive black hole (SMBH) interacts with the host galaxy. The last two decades of high resolution…

Galaxy mergers play a crucial role in the formation of massive galaxies and the buildup of their bulges. An important aspect of the merging process is the in-spiral of the supermassive black-holes (SMBHs) to the centre of the merger remnant…

Astrophysics of Galaxies · Physics 2017-08-04 M. Das , K. Rubinur , P. Kharb , A. Varghese , K. Navyasree , A. James

Recent observations show that the space density of luminous active galactic nuclei (AGNs) peaks at higher redshifts than that of faint AGNs. This downsizing trend in the AGN evolution seems to be contradictory to the hierarchical structure…

Astrophysics of Galaxies · Physics 2014-10-02 Motohiro Enoki , Tomoaki Ishiyama , Masakazu A. R. Kobayashi , Masahiro Nagashima

Recent observations confirm the existence of ultra-massive black holes (UMBH) in the nuclei of compact galaxies, with physical properties similar to NGC 1277. The nature of these objects poses a new puzzle to the `black hole-host galaxy…

Astrophysics of Galaxies · Physics 2017-10-11 W. Ishibashi , A. C. Fabian

Supermassive black holes (SMBHs) are thought to originate from early Universe seed black holes of mass $M_\mathrm{BH} \sim 10^2$-10$^5$ M$_{\odot}$ and grown through cosmic time. Such seeds could be powering the active galactic nuclei (AGN)…

Astrophysics of Galaxies · Physics 2024-09-02 M. Mezcua , M. Siudek , H. Suh , Valiante , D. Spinoso , S. Bonoli

This is the Supplemental Material to Kormendy and Ho 2013, ARAA, 51, 511 (arXiv:1304.7762). Section S1 summarizes indirect methods that are used to estimate black hole (BH) masses for galaxies with active nuclei (AGNs). Section S2 lists the…

Cosmology and Nongalactic Astrophysics · Physics 2013-08-30 John Kormendy , Luis C. Ho

Active galactic nuclei (AGN) are one of the most luminous objects in the Universe, emitting powerful continuum and line emission across all wavelength bands. They represent an important link in the investigations of the galaxy evolution and…

We present a sub-kpc localization of the sites of supermassive black hole (SMBH) growth in three active galactic nuclei (AGN) at $z \sim 3$ in relation to the regions of intense star formation in their hosts. These AGNs are selected from…

Astrophysics of Galaxies · Physics 2018-02-21 W. Rujopakarn , K. Nyland , G. H. Rieke , G. Barro , D. Elbaz , R. J. Ivison , P. Jagannathan , J. D. Silverman , V. Smolcic , T. Wang

Recent Hubble Space Telescope (HST) observations have revealed that a majority of active galactic nuclei (AGN) at z ~ 1-3 are resident in isolated disk galaxies, contrary to the usual expectation that AGN are triggered by mergers. Here we…

Astrophysics of Galaxies · Physics 2015-06-12 Victor P. Debattista , Stelios Kazantzidis , Frank C. van den Bosch

In this work, we compare the SMBH and host galaxy properties of X-ray obscured and unobscured AGN. For that purpose, we use $\sim 35 000$ X-ray detected AGN in the 4XMM-DR11 catalogue for which there are available measurements for their…

Astrophysics of Galaxies · Physics 2024-01-02 G. Mountrichas , A. Viitanen , F. J. Carrera , H. Stiele , A. Ruiz , I. Georgantopoulos , S. Mateos , A. Corral

We study the correlations between Supermassive Black Holes (BH) and their host galaxies, using a sample of 83 BH masses collected from the most recent and reliable spatially resolved estimates available from the literature. We confirm the…

Astrophysics of Galaxies · Physics 2019-09-25 Stefano de Nicola , Alessandro Marconi , Giuseppe Longo

We present the study on the relationship between SMBHs and their host galaxies using our variability-selected AGN sample ($i_\mathrm{AB} \leq 25.9,\ z \leq 4.5$) constructed from the HSC-SSP Ultra-deep survey in the COSMOS field. We…

Astrophysics of Galaxies · Physics 2024-06-26 Atsushi Hoshi , Toru Yamada , Mitsuru Kokubo , Yoshiki Matsuoka , Tohru Nagao

We use data from large surveys of the local Universe (SDSS+Galaxy Zoo) to show that the galaxy-black hole connection is linked to host morphology at a fundamental level. The fraction of early-type galaxies with actively growing black holes,…

Supermassive black holes (SMBHs) and their host galaxies are generally thought to coevolve, so that the SMBH achieves up to about 0.2 to 0.5% of the host galaxy mass in the present day. The radiation emitted from the growing SMBH is…

We explore how the co-evolution of massive black holes (MBHs) and galaxies is affected by environmental effects, addressing in particular MBHs hosted in the central galaxies of clusters (we will refer to these galaxies in general as 'CGs').…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-12 Marta Volonteri , Luca Ciotti

Since the 1990s, we have known that there is a super-massive black hole in every galaxy, and that its mass is proportional to the mass of the bulge. To better understand how these black holes were formed, in symbiosis with their galaxies,…

Astrophysics of Galaxies · Physics 2023-02-28 Francoise Combes

Today, almost every galaxy spheroid contains a massive black hole: a remnant of, and testament to, a period in its evolution when it contained an active galactic nucleus (AGN). However, the sequence and timescales of the formation of the…

Astrophysics · Physics 2009-11-10 M. J. Page , J. A. Stevens , R. J. Ivison , F. J. Carrera

Measuring of the masses of galactic supermassive black holes (SMBHs) is an important task, since they correlate with the host galaxy properties and play an important role in evolution of galaxies. Here we present a new method for measuring…

Astrophysics of Galaxies · Physics 2015-06-23 Victor L. Afanasiev , Luka C. Popovic