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In the local universe, the masses of Super-Massive Black-Holes (SMBH) appear to correlate with physical properties of their hosts, including the mass of the dark-matter halos. At higher redshifts, we observe the growth of SMBHs indirectly…

天体物理学 · 物理学 2009-11-10 Stuart Wyithe , T. Padmanabhan

We describe a model-independent integral constraint which defines an upper limit to the allowed degree of evolution in the ratio of black hole (BH) mass to host galaxy luminosity or mass, as a function of redshift. Essentially, if the…

天体物理学 · 物理学 2011-02-11 Philip F. Hopkins , Brant Robertson , Elisabeth Krause , Lars Hernquist , Thomas J. Cox

We explore the connections between the evolving galaxy and AGN populations. We present a simple phenomenological model that links the evolving galaxy mass function and the evolving quasar luminosity function, which makes specific and…

星系天体物理 · 物理学 2015-10-07 Neven Caplar , Simon J. Lilly , Benny Trakhtenbrot

We investigate the evolution of supermassive black hole mass (M_BH) and the host spheroid mass (M_sph) in order to track the history of the M_BH-M_sph relationship. The typical mass increase of M_BH is calculated by a continuity equation…

宇宙学与河外天体物理 · 物理学 2015-05-18 Shota Kisaka , Yasufumi Kojima

We present high resolution spectroscopy taken with the Keck Echellete Spectrograph and Imager to measure stellar velocity dispersions for eight active dwarf galaxies ($M_{\ast}<3\times10^{9}~M_{\odot}$) with virial black hole masses. We…

星系天体物理 · 物理学 2020-07-22 Vivienne F. Baldassare , Claire Dickey , Marla Geha , Amy E. Reines

We derive the growth of SMBHs relative to the stellar content of their host galaxy predicted under the assumption of BH accretion triggered by galaxy encounters occurring during their merging histories. We show that, within this framework,…

宇宙学与河外天体物理 · 物理学 2015-05-18 Alessandra Lamastra , Nicola Menci , Roberto Maiolino , Fabrizio Fiore , Andrea Merloni

We discuss a simple model for the growth of supermassive black holes (BHs) at the center of spheroidal stellar systems. In particular, we assess the hypotheses that (1) star formation in spheroids and BH fueling are proportional to one…

天体物理学 · 物理学 2009-11-07 Zoltan Haiman , Luca Ciotti , Jeremiah P. Ostriker

We present black hole mass--bulge velocity dispersion relation for a complete sample of 75 soft X-ray selected AGNs: 43 broad line Seyfert 1s and 32 narrow line Seyfert 1s. We use luminosity and FWHM(H-beta) as surrogates for black hole…

天体物理学 · 物理学 2009-11-10 Dirk Grupe , Smita Mathur

We examine the co-evolution of galaxies and supermassive black holes in the Simba cosmological hydrodynamic simulation. Simba grows black holes via gravitational torque-limited accretion from cold gas and Bondi accretion from hot gas, while…

星系天体物理 · 物理学 2019-07-09 Nicole Thomas , Romeel Davé , Daniel Anglés-Alcázar , Matt Jarvis

The early evolution of the quasar luminosity function (QLF) and black hole mass function (BHMF) encodes key information on the physics determining the radiative and accretion processes of supermassive black holes (BHs) in high-$z$ quasars.…

星系天体物理 · 物理学 2023-06-28 Wenxiu Li , Kohei Inayoshi , Masafusa Onoue , Daisuke Toyouchi

The realization of fundamental relations between supermassive black holes and their host galaxies would have profound implications in astrophysics. To add further context to studies of their co-evolution, an investigation is carried out to…

星系天体物理 · 物理学 2022-07-20 John Silverman , Junyao Li , Xuheng Ding

We examine the origin and evolution of correlations between properties of supermassive black holes (BHs) and their host galaxies using simulations of major galaxy mergers, including the effects of gas dissipation, cooling, star formation,…

天体物理学 · 物理学 2008-11-26 Philip F. Hopkins , Lars Hernquist , Thomas J. Cox , Brant Robertson , Elisabeth Krause

In this work we study the co-evolution of central black holes (BHs) and host galaxies by utilizing an advanced iteration of the DELPHI semi-analytical model of galaxy formation and evolution. Based on dark matter halo merger trees spanning…

星系天体物理 · 物理学 2024-03-25 Olmo Piana , Hung-Yi Pu , Kinwah Wu

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…

星系天体物理 · 物理学 2024-06-26 Atsushi Hoshi , Toru Yamada , Mitsuru Kokubo , Yoshiki Matsuoka , Tohru Nagao

We create a baseline of the black hole (BH) mass (MBH) - stellar-velocity dispersion (sigma) relation for active galaxies, using a sample of 66 local (0.02<z<0.09) Seyfert-1 galaxies, selected from the Sloan Digital Sky Survey (SDSS).…

The observed relation between supermassive black hole (SMBH) mass (M) and bulge stellar velocity dispersion (Sigma) is described by log(M) = alpha + beta*log(Sigma/200 km/s). As this relation has important implications for models of galaxy…

宇宙学与河外天体物理 · 物理学 2015-05-18 D. Batcheldor

The correlation between black hole mass M(BH) and stellar velocity dispersion sigma in nearby elliptical galaxies affords a novel way to determine M(BH) in active galaxies. We report on measurements of sigma from optical spectra of 7 BL Lac…

天体物理学 · 物理学 2009-11-07 R. Falomo , J. K. Kotilainen , A. Treves

Making use of public spectra from Cimatti et al (2008), we measure for the first time the velocity dispersion of spheroid-like massive (M_star ~ 10^11 M_sun) galaxies at z ~ 1.6. By comparing with galaxies of similar stellar mass at lower…

宇宙学与河外天体物理 · 物理学 2015-05-13 A. Javier Cenarro , Ignacio Trujillo

We present measurements of the velocity dispersion profile (VDP) for galaxy groups in the final data release of the Sloan Digital Sky Survey (SDSS). For groups of given mass we estimate the redshift-space cross-correlation function (CCF)…

宇宙学与河外天体物理 · 物理学 2015-06-05 Cheng Li , Y. P. Jing , Shude Mao , Jiaxin Han , Qiuying Peng , Xiaohu Yang , H. J. Mo , Frank van den Bosch

We infer supermassive black hole (SMBH) accretion rates and Eddington ratios as a function of SMBH/host galaxy mass and redshift with the empirical TRINITY model of dark matter halo--galaxy--SMBH connection. The galaxy--SMBH mass and growth…