Zobrazeno 1 - 10
of 731
pro vyhledávání: '"Ostriker, Jeremiah P"'
Autor:
Yang, Hsun-Yeong, Chiang, Barry T., Su, Guan-Ming, Schive, Hsi-Yu, Chiueh, Tzihong, Ostriker, Jeremiah P.
Fuzzy dark matter (FDM), an attractive dark matter candidate comprising ultralight bosons (axions) with a particle mass $m_a\sim10^{-22}$ eV, is motivated by the small-scale challenges of cold dark matter and features a kpc-size de Broglie wavelength
Externí odkaz:
http://arxiv.org/abs/2403.09845
Autor:
Choi, Ena, Somerville, Rachel S., Ostriker, Jeremiah P., Hirschmann, Michaela, Naab, Thorsten
We investigate the fueling mechanisms of supermassive black holes (SMBHs) by analyzing ten zoom-in cosmological simulations of massive galaxies, with stellar masses $10^{11-12} M_{\odot}$ and SMBH masses $10^{8.9-9.7}$ at $z=0$ and featuring various
Externí odkaz:
http://arxiv.org/abs/2312.08449
Autor:
Zhu, Bocheng, Yuan, Feng, Ji, Suoqing, Peng, Yingjie, Ho, Luis C., Ostriker, Jeremiah P., Ciotti, Luca
The cosmological inflow of a galaxy is speculated to be able to enter the galaxy and enhance the star formation rate (SFR) and black hole accretion rate (BHAR). In this paper, by performing high-resolution hydrodynamic simulations in the framework of
Externí odkaz:
http://arxiv.org/abs/2303.03834
Autor:
Rizzuto, Francesco Paolo, Naab, Thorsten, Rantala, Antti, Johansson, Peter H., Ostriker, Jeremiah P., Stone, Nicholas C., Liao, Shihong, Irodotou, Dimitrios
We present $N\mathrm{-body} $ simulations, including post-Newtonian dynamics, of dense clusters of low-mass stars harbouring central black holes (BHs) with initial masses of 50, 300, and 2000 $\mathrm{M_{\odot}}$. The models are evolved with the $N\m
Externí odkaz:
http://arxiv.org/abs/2211.13320
Ultralight axion-like particles $m_a \sim 10^{-22}$ eV, or Fuzzy Dark Matter (FDM), behave comparably to cold dark matter (CDM) on cosmological scales and exhibit a kpc-size de Broglie wavelength capable of alleviating established (sub-)galactic-scal
Externí odkaz:
http://arxiv.org/abs/2211.07452
A star wandering close enough to a massive black hole (MBH) can be ripped apart by the tidal forces of the black hole. The advent of wide-field surveys at many wavelengths has quickly increased the number of tidal disruption events (TDEs) observed, a
Externí odkaz:
http://arxiv.org/abs/2211.05858
Star formation in disk galaxies is observed to follow the empirical Kennicutt-Schmidt law, a power-law relationship between the surface density of gas ($\Sigma_{gas}$) [$\textrm{M}_{\odot}\; \textrm{kpc}^{-2}$] and the star formation rate ($\Sigma_{S
Externí odkaz:
http://arxiv.org/abs/2208.03735
Autor:
Choi, Ena, Ostriker, Jeremiah P., Hirschmann, Michaela, Somerville, Rachel S., Naab, Thorsten
Stellar metallicity distribution functions (MDF) have been measured for resolved stellar populations in the outer halos of many galaxies in nearby groups. Among them, the MDF of NGC 5128, the central giant elliptical in the Centaurus group, provides
Externí odkaz:
http://arxiv.org/abs/2203.07389