Zobrazeno 1 - 10
of 151
pro vyhledávání: '"Nadler, Ethan O."'
We present $72$ cosmological dark matter (DM)--only N-body zoom-in simulations with initial conditions beyond cold, collisionless dark matter (CDM), as the first installment of the COZMIC suite. We simulate Milky Way (MW) analogs with linear matter p
Externí odkaz:
http://arxiv.org/abs/2410.03635
The GD-1 stellar stream exhibits spur and gap structures that may result from a close encounter with a dense substructure. When interpreted as a dark matter subhalo, the perturber is denser than predicted in the standard cold dark matter (CDM) model.
Externí odkaz:
http://arxiv.org/abs/2409.19493
Autor:
Kado-Fong, Erin, Geha, Marla, Mao, Yao-Yuan, Reyes, Mithi A. C. de los, Wechsler, Risa H., Weiner, Benjamin, Asali, Yasmeen, Kallivayalil, Nitya, Nadler, Ethan O., Tollerud, Erik J., Wang, Yunchong
The redshift-dependent relation between galaxy stellar mass and star formation rate (the Star-Forming Sequence, or SFS) is a key observational yardstick for galaxy assembly. We use the SAGAbg-A sample of background galaxies from the Satellites Around
Externí odkaz:
http://arxiv.org/abs/2409.12221
Autor:
Wang, Yunchong, Mansfield, Philip, Nadler, Ethan O., Darragh-Ford, Elise, Wechsler, Risa H., Yang, Daneng, Yu, Hai-Bo
We investigate the impact of galactic disks on the tidal stripping of cold dark matter subhalos within Milky Way (MW)-mass halos ($M_{\rm vir}\sim 10^{12}\mathrm{M_{\odot}}$) using a new simulation suite, EDEN. By re-simulating 45 MW-mass zoom-in hal
Externí odkaz:
http://arxiv.org/abs/2408.01487
Interactions between dark matter (DM) and relativistic particles at early times suppress structure formation on small scales. In particular, the scattering process transfers heat and momentum from radiation to DM, ultimately reducing the abundance of
Externí odkaz:
http://arxiv.org/abs/2406.19458
We systemically evaluate the performance of the self-interacting dark matter (SIDM) halo model proposed in arXiv:2305.16176 with matched halos from high-resolution cosmological CDM and SIDM simulations. The model incorporates SIDM effects along mass
Externí odkaz:
http://arxiv.org/abs/2406.10753
Autor:
Wang, Yunchong, Nadler, Ethan O., Mao, Yao-Yuan, Wechsler, Risa H., Abel, Tom, Behroozi, Peter, Geha, Marla, Asali, Yasmeen, Reyes, Mithi A. C. de los, Kado-Fong, Erin, Kallivayalil, Nitya, Tollerud, Erik J., Weiner, Benjamin, Wu, John F.
Environment plays a critical role in shaping the assembly of low-mass galaxies. Here, we use the UniverseMachine (UM) galaxy-halo connection framework and the Data Release 3 of the Satellites Around Galactic Analogs (SAGA) Survey to place dwarf galax
Externí odkaz:
http://arxiv.org/abs/2404.14500
Autor:
Geha, Marla, Mao, Yao-Yuan, Wechsler, Risa H., Asali, Yasmeen, Kado-Fong, Erin, Kallivayalil, Nitya, Nadler, Ethan O., Tollerud, Erik J., Weiner, Benjamin, Reyes, Mithi A. C. de los, Wang, Yunchong, Wu, John F.
We present the star-forming properties of 378 satellite galaxies around 101 Milky Way analogs in the Satellites Around Galactic Analogs (SAGA) Survey, focusing on the environmental processes that suppress or quench star formation. In the SAGA stellar
Externí odkaz:
http://arxiv.org/abs/2404.14499
Autor:
Mao, Yao-Yuan, Geha, Marla, Wechsler, Risa H., Asali, Yasmeen, Wang, Yunchong, Kado-Fong, Erin, Kallivayalil, Nitya, Nadler, Ethan O., Tollerud, Erik J., Weiner, Benjamin, Reyes, Mithi A. C. de los, Wu, John F.
We present the third Data Release (DR3) of the Satellites Around Galactic Analogs (SAGA) Survey, a spectroscopic survey characterizing satellite galaxies around Milky Way (MW)-mass galaxies. The SAGA Survey DR3 includes 378 satellites identified acro
Externí odkaz:
http://arxiv.org/abs/2404.14498
Publikováno v:
ApJ 971, 79 (2024)
We present Milky Way-est, a suite of 20 cosmological cold-dark-matter-only zoom-in simulations of Milky Way (MW)-like host halos. Milky Way-est hosts are selected such that they (i) are consistent with the MW's measured halo mass and concentration, (
Externí odkaz:
http://arxiv.org/abs/2404.08043