Zobrazeno 1 - 10
of 1 926
pro vyhledávání: '"Hopkins, Philip A."'
Autor:
Li, Fei, Rahman, Mubdi, Murray, Norman, Kereš, Dušan, Wetzel, Andrew, Faucher-Giguère, Claude-André, Hopkins, Philip F., Moreno, Jorge
Simulations and observations suggest that galaxy interactions may enhance the star formation rate (SFR) in merging galaxies. One proposed mechanism is the torque exerted on the gas and stars in the larger galaxy by the smaller galaxy. We analyze the
Externí odkaz:
http://arxiv.org/abs/2411.10373
We propose a novel dust battery mechanism for generating seed magnetic fields in the early universe, in which charged dust grains are radiatively accelerated, inducing strong electric currents that subsequently generate magnetic fields. Our analysis
Externí odkaz:
http://arxiv.org/abs/2410.21461
Autor:
Su, Kung-Yi, Natarajan, Priyamvada, Cho, Hyerin, Narayan, Ramesh, Hopkins, Philip F., Anglés-Alcázar, Daniel, Prather, Ben S.
Coupling black hole (BH) feeding and feedback involves interactions across vast spatial and temporal scales that is computationally challenging. Tracking gas inflows and outflows from kilo-parsec scales to the event horizon for non-spinning BHs in th
Externí odkaz:
http://arxiv.org/abs/2410.13235
Autor:
Lucey, Madeline, Sanderson, Robyn, Horta, Danny, Kundu, Aritra, Hopkins, Philip F., Arora, Arpit, Singh, Jasjeev, Panithanpaisal, Nondh
$\Lambda$CDM cosmology predicts the hierarchical formation of galaxies which build up mass by merger events and accreting smaller systems. The stellar halo of the Milky Way has proven to be useful a tool for tracing this accretion history. However, m
Externí odkaz:
http://arxiv.org/abs/2410.03627
Autor:
Ponnada, Sam B., Cochrane, Rachel K., Hopkins, Philip F., Butsky, Iryna S., Wellons, Sarah, Sanchez, N. Nicole, Hummels, Cameron, Lu, Yue Samuel, Kereš, Dušan, Hayward, Christopher C.
The far-infrared (FIR) - radio correlation (FRC) is one of the most promising empirical constraints on the role of cosmic-rays (CRs) and magnetic fields (\textbf{B}) in galaxy formation and evolution. While many theories have been proposed in order t
Externí odkaz:
http://arxiv.org/abs/2410.02971
Autor:
Kaaz, Nicholas, Liska, Matthew, Tchekhovskoy, Alexander, Hopkins, Philip F., Jacquemin-Ide, Jonatan
Quasars are powered by supermassive black hole (SMBH) accretion disks, yet standard disk models are inconsistent with many quasar observations. Recently, Hopkins et al. (2024) simulated the formation of a quasar disk feeding a SMBH of mass $M=1.3\tim
Externí odkaz:
http://arxiv.org/abs/2410.01877
Autor:
Zhang, Haowen, Behroozi, Peter, Volonteri, Marta, Silk, Joseph, Fan, Xiaohui, Aird, James, Yang, Jinyi, Wang, Feige, Hopkins, Philip F.
We infer supermassive black hole (SMBH) accretion rates and Eddington ratios as a function of SMBH/host galaxy mass and redshift with the empirical TRINITY model of dark matter halo--galaxy--SMBH connection. The galaxy--SMBH mass and growth rate conn
Externí odkaz:
http://arxiv.org/abs/2409.16347
Autor:
Sun, Xunda, Wang, Xin, Ma, Xiangcheng, Wang, Kai, Wetzel, Andrew, Faucher-Giguère, Claude-André, Hopkins, Philip F., Kereš, Dušan, Graf, Russell L., Marszewski, Andrew, Stern, Jonathan, Sun, Guochao, Sun, Lei, Thyme, Keyer
Using the FIRE-2 cosmological zoom-in simulations, we investigate the temporal evolution of gas-phase metallicity radial gradients of Milky Way-mass progenitors in the redshift range of $0.4
Externí odkaz:
http://arxiv.org/abs/2409.09290
We show that there exist two qualitatively different turbulent states of the zero-net-vertical-flux shearing box. The first, which has been studied in detail previously, is characterized by a weakly magnetized ($\beta\sim50$) midplane with slow perio
Externí odkaz:
http://arxiv.org/abs/2409.05467
Autor:
Soliman, Nadine H., Hopkins, Philip F.
Numerous stars exhibit surprisingly large variations in their refractory element abundances, often interpreted as signatures of planetary ingestion events. In this study, we propose that differences in the dust-to-gas ratio near stars during their fo
Externí odkaz:
http://arxiv.org/abs/2408.15326