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We derive predictions from state-of-the-art cosmological galaxy simulations for the spatial distribution of the hot circumgalactic medium (CGM, ${\rm [0.1-1]R_{200c}}$) through its emission lines in the X-ray soft band ($[0.3-1.3]$ keV). In…

We explored the role of X-ray binaries composed by a black hole and a massive stellar companion (BHXs) as sources of kinetic feedback by using hydrodynamical cosmological simulations. Following previous results, our BHX model selects low…

星系天体物理 · 物理学 2015-06-23 M. C. Artale , P. B. Tissera , L. J. Pellizza

We study the interplay between galaxy evolution and central black-hole (BH) growth using the {NewHorizon} cosmological simulation. BH growth is slow when the dark-matter halo is below a golden mass of $M_{\rm v} \sim 10^{12} \rm M_\odot$,…

星系天体物理 · 物理学 2021-07-02 Sharon Lapiner , Avishai Dekel , Yohan Dubois

In the universe's most massive galaxies, kinetic feedback from a central supermassive black hole appears to limit star formation. Abundant circumstantial evidence suggests that accumulation of cold gas near the central black hole strongly…

星系天体物理 · 物理学 2020-12-23 Deovrat Prasad , G. Mark Voit , Brian W. O'shea , Forrest Glines

Coevolution between supermassive black holes (BHs) and their host galaxies is universally adopted in models for galaxy formation. In the absence of feedback from active galactic nuclei, simulated massive galaxies keep forming stars in the…

We investigate the rapid growth phase of supermassive black holes (BHs) within the hydrodynamical cosmological \eagle simulation. This non-linear phase of BH growth occurs within $\sim$$L_{*}$ galaxies, embedded between two regulatory…

星系天体物理 · 物理学 2018-09-19 Stuart McAlpine , Richard G. Bower , David J. Rosario , Robert A. Crain , Joop Schaye , Tom Theuns

[Abridged] The relatively recent insight that energy input from supermassive black holes (BHs) can have a substantial effect on the star formation rates (SFRs) of galaxies motivates us to examine its effects on the scale of galaxy groups.…

The empirical model of Lu et al. 2014a for the relation between star formation rate and halo mass growth is adopted to predict the classical bulge mass ($M_{\rm cb}$) - total stellar mass ($M_\star$) relation for central galaxies. The…

星系天体物理 · 物理学 2015-06-22 Zhankui Lu , H. J. Mo

We investigate the origin of the scatter in the supermassive black hole (BH) masses for galaxies in the L* regime, using the ARTEMIS and EAGLE simulations. By classifying galaxies based on their central BH / galaxy stellar masses ratios, we…

星系天体物理 · 物理学 2026-05-19 Salvador E. Grimozzi , Maria Emilia De Rossi , Andreea S. Font

We use a semianalytic model of galaxy formation to compare the predictions of two quenching scenarios: halo quenching and black-hole (BH) quenching. After calibrating both models so that they fit the mass function of galaxies, BH quenching…

星系天体物理 · 物理学 2022-09-27 Ioanna Koutsouridou , Andrea Cattaneo

We analyse the demographics of black holes (BHs) in the large-volume cosmological hydrodynamical simulation Horizon-AGN. This simulation statistically models how much gas is accreted onto BHs, traces the energy deposited into their…

星系天体物理 · 物理学 2016-07-27 Marta Volonteri , Yohan Dubois , Christophe Pichon , Julien Devriendt

We use a particle tracking analysis to study the origins of the circumgalactic medium (CGM), separating it into (1) accretion from the intergalactic medium (IGM), (2) wind from the central galaxy, and (3) gas ejected from other galaxies.…

Black holes are usually observed to be of stellar-mass or supermassive. By natural extension, there should be a population of Intermediate-Mass Black Holes (IMBHs: with mass between $100$ to $10^6 M_{\odot}$) in the Universe; which has…

星系天体物理 · 物理学 2020-06-24 Paramita Barai , Elisabete M. de Gouveia Dal Pino

We use semi-analytical models to study the effects of primordial black hole (PBH) accretion on the cosmic radiation background during the epoch of reionization ($z\gtrsim 6$). We consider PBHs floating in the intergalactic medium (IGM), and…

宇宙学与河外天体物理 · 物理学 2024-04-15 Saiyang Zhang , Boyuan Liu , Volker Bromm

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

Feedback from energy liberated by gas accretion onto black holes (BHs) is an attractive mechanism to explain the exponential cut-off at the massive end of the galaxy stellar mass function (SMF). Semi-analytic models of galaxy formation in…

宇宙学与河外天体物理 · 物理学 2015-10-14 Y. M. Rosas-Guevara , R. G. Bower , J. Schaye , M. Furlong , C. S. Frenk , C. M. Booth , R. Crain , C. Dalla Vecchia , M. Schaller , T. Theuns

We study the evolution of gravitationally recoiled supermassive black holes (BHs) in massive gas-rich galaxies by means of high-resolution hydrodynamical simulations. We find that the presence of a massive gaseous disc allows recoiled BHs…

宇宙学与河外天体物理 · 物理学 2015-05-19 Debora Sijacki , Volker Springel , Martin Haehnelt

The observed super-massive black hole (SMBH) mass -- galaxy velocity dispersion ($M_{\rm bh} - \sigma$) correlation may be established when winds/outflows from the SMBH drive gas out of the potential wells of classical bulges. Here we…

宇宙学与河外天体物理 · 物理学 2015-05-14 Sergei Nayakshin , Chris Power

Dwarf galaxies are ideal laboratories to probe the interplay between galaxy formation and the growth of black holes (BHs) in the early Universe. Mounting observational evidence reveals the presence of BHs in low-mass galaxies across cosmic…

We use idealized 3D hydrodynamic simulations to study the dynamics and thermal structure of the circumgalactic medium (CGM). Our simulations quantify the role of cooling, stellar feedback driven galactic winds and cosmological gas accretion…

星系天体物理 · 物理学 2017-02-08 Drummond Fielding , Eliot Quataert , Michael McCourt , Todd A. Thompson