Zobrazeno 1 - 10
of 419
pro vyhledávání: '"Kravtsov, Andrey V."'
We analyze high-resolution hydrodynamics simulations of an isolated disk dwarf galaxy with an explicit model for unresolved turbulence and turbulence-based star formation prescription. We examine the characteristic values of the star formation effici
Externí odkaz:
http://arxiv.org/abs/2407.11125
We use a suite of hydrodynamics simulations of the interstellar medium (ISM) within a galactic disk, which include radiative transfer, a non-equilibrium model of molecular hydrogen, and a realistic model for star formation and feedback, to study the
Externí odkaz:
http://arxiv.org/abs/2310.10712
Autor:
More, Surhud, Miyatake, Hironao, Takada, Masahiro, Diemer, Benedikt, Kravtsov, Andrey V., Dalal, Neal K., More, Anupreeta, Murata, Ryoma, Mandelbaum, Rachel, Rozo, Eduardo, Rykoff, Eli S., Oguri, Masamune, Spergel, David N.
We show that the projected number density profiles of Sloan Digital Sky Survey photometric galaxies around galaxy clusters display strong evidence for the splashback radius, a sharp halo edge corresponding to the location of the first orbital apocent
Externí odkaz:
http://hdl.handle.net/10150/621397
http://arizona.openrepository.com/arizona/handle/10150/621397
http://arizona.openrepository.com/arizona/handle/10150/621397
We compare the performance of energy-based and entropy-conserving schemes for modeling nonthermal energy components, such as unresolved turbulence and cosmic rays, using idealized fluid dynamics tests and isolated galaxy simulations. While both metho
Externí odkaz:
http://arxiv.org/abs/2107.14240
Publikováno v:
ApJ 918, 13 (2021)
The spatial decorrelation of dense molecular gas and young stars observed on $\lesssim 1$ kiloparsec scales in nearby galaxies indicates rapid dispersal of star-forming regions by stellar feedback. We explore the sensitivity of this decorrelation to
Externí odkaz:
http://arxiv.org/abs/2103.13406
Publikováno v:
ApJ 910, 126 (2021)
Observations of the $\gamma$-ray emission around star clusters, isolated supernova remnants, and pulsar wind nebulae indicate that the cosmic-ray (CR) diffusion coefficient near acceleration sites can be suppressed by a large factor compared to the G
Externí odkaz:
http://arxiv.org/abs/2012.01427
Autor:
Esmerian, Clarke J., Kravtsov, Andrey V., Hafen, Zachary, Faucher-Giguere, Claude-Andre, Quataert, Eliot, Stern, Jonathan, Keres, Dusan, Wetzel, Andrew
We examine the thermodynamic state and cooling of the low-$z$ Circum-Galactic Medium (CGM) in five FIRE-2 galaxy formation simulations of Milky Way-mass galaxies. We find that the CGM in these simulations is generally multiphase and dynamic, with a w
Externí odkaz:
http://arxiv.org/abs/2006.13945
We quantify the shape and overdensity of the galaxy distribution in the `Local Sheet' within a sphere of $R=8$ Mpc, and compare these properties with the expectations of the $\Lambda$CDM model. We measure ellipsoidal axis ratios of $c/a\approx0.16$ a
Externí odkaz:
http://arxiv.org/abs/1912.04307
We use a statistical sample of galaxy clusters from a large cosmological $N$-body$+$hydrodynamics simulation to examine the relation between morphology, or shape, of the X-ray emitting intracluster medium (ICM) and the mass accretion history of the g
Externí odkaz:
http://arxiv.org/abs/1903.08662
Autor:
Mansfield, Philip, Kravtsov, Andrey V.
We present a detailed analysis of the physical processes that cause halo assembly bias -- the dependence of halo clustering on proxies of halo formation time. We focus on the origin of assembly bias in the mass range corresponding to the hosts of typ
Externí odkaz:
http://arxiv.org/abs/1902.00030