Zobrazeno 1 - 10
of 20
pro vyhledávání: '"Iryna S Butsky"'
Publikováno v:
Monthly Notices of the Royal Astronomical Society. 517:5413-5448
Models for cosmic ray (CR) dynamics fundamentally depend on the rate of CR scattering from magnetic fluctuations. In the ISM, for CRs with energies ~MeV-TeV, these fluctuations are usually attributed either to 'extrinsic turbulence' (ET) - a cascade
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6d851a956b3ac8a5586dec1d62e73308
https://doi.org/10.1093/mnras/stac2909
https://doi.org/10.1093/mnras/stac2909
Autor:
Sam B Ponnada, Georgia V Panopoulou, Iryna S Butsky, Philip F Hopkins, Sarah R Loebman, Cameron Hummels, Suoqing Ji, Andrew Wetzel, Claude-André Faucher-Giguère, Christopher C Hayward
Publikováno v:
Monthly Notices of the Royal Astronomical Society. 516:4417-4431
The physics of magnetic fields ($\textbf{B}$) and cosmic rays (CRs) have recently been included in simulations of galaxy formation. However, significant uncertainties remain in how these components affect galaxy evolution. To understand their common
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2811f5f16807f4d29f3a6ce71e307381
https://doi.org/10.1093/mnras/stac2448
https://doi.org/10.1093/mnras/stac2448
Publikováno v:
Universe, Vol 7, Iss 7, p 209 (2021)
Galaxy groups are more than an intermediate scale between clusters and halos hosting individual galaxies, they are crucial laboratories capable of testing a range of astrophysics from how galaxies form and evolve to large scale structure (LSS) statis
Externí odkaz:
https://doaj.org/article/bb9df5cb99ec42ccb0176c2050cfdb91
Many recent numerical studies have argued that cosmic rays (CRs) from supernovae (SNe) or active galactic nuclei (AGN) could play a crucial role in galaxy formation, in particular by establishing a CR-pressure dominated circum-galactic medium (CGM).
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6cdbd739ad7b6946cce863bcb68e97b2
http://arxiv.org/abs/2211.05811
http://arxiv.org/abs/2211.05811
Recent theoretical studies predict that the circumgalactic medium (CGM) around low-redshift, $\sim L_*$ galaxies could have substantial nonthermal pressure support in the form of cosmic rays. However, these predictions are sensitive to the specific m
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d389d02cd9355f4a9dbe9fe27dacc475
Autor:
Philip F Hopkins, Iryna S Butsky, Georgia V Panopoulou, Suoqing Ji, Eliot Quataert, Claude-André Faucher-Giguère, Dušan Kereš
We present the first simulations evolving resolved spectra of cosmic rays (CRs) from MeV-TeV energies (including electrons, positrons, (anti)protons, and heavier nuclei), in live kinetic-MHD galaxy simulations with star formation and feedback. We uti
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::71006a982bea8ddd74ebd70b559d0a60
http://arxiv.org/abs/2109.09762
http://arxiv.org/abs/2109.09762
Autor:
Nir Mandelker, Frank C. van den Bosch, Volker Springel, Freeke van de Voort, Joseph N. Burchett, Iryna S. Butsky, Daisuke Nagai, S. Peng Oh
Using a novel suite of cosmological simulations zooming in on a Mpc-scale intergalactic sheet or "pancake" at z~3-5, we conduct an in-depth study of the thermal properties and HI content of the warm-hot intergalactic medium (WHIM) at those redshifts.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d41bce580e2bddc73a86549134672033
http://arxiv.org/abs/2107.03395
http://arxiv.org/abs/2107.03395
We derive a consistent set of moments equations for CR-magnetohydrodynamics, assuming a gyrotropic distribution function (DF). Unlike previous efforts we derive a closure, akin to the M1 closure in radiation hydrodynamics (RHD), that is valid in both
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e1d8278ad4adb235d6b5a95fc26e0a3b
http://arxiv.org/abs/2103.10443
http://arxiv.org/abs/2103.10443
Publikováno v:
Universe, Vol 7, Iss 209, p 209 (2021)
Universe
Universe
Galaxy groups are more than an intermediate scale between clusters and halos hosting individual galaxies, they are crucial laboratories capable of testing a range of astrophysics from how galaxies form and evolve to large scale structure (LSS) statis
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::527655d960f309195bda34a7f6acfd2a
Autor:
Christopher C. Hayward, Thomas R. Quinn, Drummond Fielding, Jessica K. Werk, Cameron Hummels, Iryna S. Butsky
Large reservoirs of cold (~ 10^4 K) gas exist out to and beyond the virial radius in the circumgalactic medium (CGM) of all types of galaxies. Photoionization modeling suggests that cold CGM gas has significantly lower densities than expected by theo
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::de040081491403aaa1440f8e12b5a68c
https://resolver.caltech.edu/CaltechAUTHORS:20201104-145215845
https://resolver.caltech.edu/CaltechAUTHORS:20201104-145215845