Zobrazeno 1 - 10
of 151
pro vyhledávání: '"Nadler, Ethan"'
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
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
We combine the semi-analytical structure formation model, SASHIMI, which predicts subhalo populations in collisionless, cold dark matter (CDM), with a parametric model that maps CDM halos to self-interacting dark matter (SIDM) halos. The resulting mo
Externí odkaz:
http://arxiv.org/abs/2403.16633
Autor:
Du, Xiaolong, Benson, Andrew, Zeng, Zhichao Carton, Treu, Tommaso, Peter, Annika H. G., Mace, Charlie, Jiang, Fangzhou, Yang, Shengqi, Gannon, Charles, Gilman, Daniel, Nierenberg, Anna. M., Nadler, Ethan O.
The internal structure and abundance of dark matter halos and subhalos are powerful probes of the nature of dark matter. In order to compare observations with dark matter models, accurate theoretical predictions of these quantities are needed. We pre
Externí odkaz:
http://arxiv.org/abs/2403.09597
Autor:
Kado-Fong, Erin, Geha, Marla, Mao, Yao-Yuan, Reyes, Mithi A. C. de los, Wechsler, Risa H., Asali, Yasmeen, Kallivayalil, Nitya, Nadler, Ethan O., Tollerud, Erik J., Weiner, Benjamin
Measuring the relation between star formation and galactic winds is observationally difficult. In this work we make an indirect measurement of the mass loading factor (the ratio between mass outflow rate and star formation rate) in low-mass galaxies
Externí odkaz:
http://arxiv.org/abs/2401.16469
Autor:
Nadler, Ethan O., Gluscevic, Vera, Driskell, Trey, Wechsler, Risa H., Moustakas, Leonidas A., Benson, Andrew, Mao, Yao-Yuan
Publikováno v:
ApJ 967, 61 (2024)
The abundance of faint dwarf galaxies is determined by the underlying population of low-mass dark matter (DM) halos and the efficiency of galaxy formation in these systems. Here, we quantify potential galaxy formation and DM constraints from future d
Externí odkaz:
http://arxiv.org/abs/2401.10318