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Black holes play a pivotal role in the foundations of physics, but there is an alarming discrepancy between what is considered to be a black hole in observational astronomy and theoretical studies. Despite claims to the contrary, we argue…

广义相对论与量子宇宙学 · 物理学 2023-12-15 Sebastian Murk

Updating Kormendy & Kennicutt (2004, ARAA, 42, 603), we review internal secular evolution of galaxy disks. One consequence is the growth of pseudobulges that often are mistaken for true (merger-built) bulges. Many pseudobulges are…

天体物理学 · 物理学 2008-10-16 John Kormendy , David B. Fisher

We make use of the first high--resolution hydrodynamic simulations of structure formation which self-consistently follows the build up of supermassive black holes introduced in Di Matteo et al. (2007) to investigate the relation between…

天体物理学 · 物理学 2009-11-13 Joerg M. Colberg , Tiziana Di Matteo

The growth of supermassive black holes by merging and accretion in hierarchical models of galaxy formation is studied by means of Monte Carlo simulations. A tight linear relation between masses of black holes and masses of bulges arises if…

天体物理学 · 物理学 2009-10-31 A. Cattaneo , M. G. Haehnelt , M. J. Rees

The observed super-massive black hole (SMBH) mass -- galaxy velocity dispersion ($M_{\rm cmo} - \sigma$) correlation, and the similar correlation for nuclear star clusters, may be established when winds/outflows from the CMO ("central…

宇宙学与河外天体物理 · 物理学 2010-02-17 Sergei Nayakshin

On the basis of recently discovered connections between D-branes and black holes, I show how the information puzzle is solved by superstring theory as the fundamental theory of quantum gravity. The picture that emerges is that a…

高能物理 - 理论 · 物理学 2008-02-03 Daniele Amati

The exactly solvable scalar hairy black hole model (originated from the modern high-energy theory) is proposed. It turns out that the existence of black holes (BH) is strongly correlated to global scalar field, in a sense that they mutually…

高能物理 - 理论 · 物理学 2009-11-10 Konstantin G. Zloshchastiev

I begin by summarizing the evidence that there is a close relationship between the evolution of galaxies and supermassive black holes. They evidently share a common fuel source, and feedback from the black hole may be needed to suppress…

天体物理学 · 物理学 2015-05-13 T. M. Heckman

I review the progress made on the physics of relativistic jets from black hole systems in the context of the analogy between AGN and microquasars that was proposed one decade ago. If the emerging empirical correlations between the…

天体物理学 · 物理学 2008-11-26 I. F. Mirabel

We present revised (black hole mass)-(spheroid stellar mass) and (black hole mass)-(galaxy stellar mass) scaling relations based on colour-dependent stellar mass-to-light ratios. Our 3.6 micron luminosities were obtained from multicomponent…

星系天体物理 · 物理学 2023-05-08 Alister W. Graham , Nandini Sahu

We present a series of simulations of the self--regulated growth of supermassive black holes (SMBHs) in galaxies via three different fueling mechanisms: major mergers, minor mergers, and disk instabilities. The SMBHs in all three scenarios…

天体物理学 · 物理学 2009-11-13 Joshua D. Younger , Philip F. Hopkins , T. J. Cox , Lars Hernquist

In the last decade, a combination of high sensitivity, high spatial resolution observations and of coordinated multi-wavelength surveys has revolutionized our view of extra-galactic black hole (BH) astrophysics. We now know that…

高能天体物理现象 · 物理学 2016-06-22 A. Merloni

The physical and evolutionary relation between growing supermassive black holes (AGN) and host galaxies is currently the subject of intense research activity. Nevertheless, a deep theoretical understanding of such a relation is hampered by…

宇宙学与河外天体物理 · 物理学 2015-05-14 Andrea Merloni

We study tunneling of massless and massive particles through the smeared quantum horizon of the extra-dimensional Schwarzschild black holes. The emission rate of the particles' tunneling is modified by noncommutativity effects in a bulk…

高能物理 - 理论 · 物理学 2009-04-17 Kourosh Nozari , S. Hamid Mehdipour

The central black-hole masses of a sample of 30 luminous quasars are estimated using H-beta FWHM measurements from a combination of new and previously-published nuclear spectra. The quasar black-hole mass estimates are combined with…

天体物理学 · 物理学 2009-10-31 R. J. McLure , J. S. Dunlop

A brief overview of several recent disk galaxy scaling relations is presented, along with some historical background. In particular, after introducing the (basic) radial light profiles of disk galaxies, I explain several important…

宇宙学与河外天体物理 · 物理学 2013-12-02 Alister W. Graham

This paper reviews the Oppenheimer, Volkoff and Snyder's arguments about the formation of black holes from the collapse of Neutron Stars. It is found that such a collapse is inconsistent with microscopic causality and Heisenberg uncertainty…

综合物理 · 物理学 2007-05-23 Jose N. Pecina-Cruz

We have re-examined the relation between the mass of the central black holes in nearby galaxies, M_bh, and the stellar mass of the surrounding spheroid or bulge, M_bulge. For a total of 30 galaxies bulge masses were derived through Jeans…

天体物理学 · 物理学 2009-11-10 Nadine Haering , Hans-Walter Rix

Observations of the centers of galaxies continue to evolve, and it is useful to take a fresh look at the constraints that exist on alternatives to supermassive black holes at their centers. We discuss constraints complementary to those of…

天体物理学 · 物理学 2009-11-13 M. Coleman Miller

We report the discovery of a positive correlation between supermassive black hole mass and dark matter halo concentration at fixed halo mass in cosmological hydrodynamical simulations. Analyzing central galaxies in TNG100 (N = 18,954),…

星系天体物理 · 物理学 2025-12-30 John K. Nino