Zobrazeno 1 - 10
of 279
pro vyhledávání: '"Zavala, Jesus"'
Autor:
Verwohlt, Jo, Mason, Charlotte A., Muñoz, Julian B., Cyr-Racine, Francis-Yan, Vogelsberger, Mark, Zavala, Jesús
The formation redshift and abundance of the first stars and galaxies is highly sensitive to the build up of low mass dark matter halos as well as astrophysical feedback effects which modulate star formation in these low mass halos. The 21-cm signal a
Externí odkaz:
http://arxiv.org/abs/2404.17640
Autor:
Shen, Xuejian, Borrow, Josh, Vogelsberger, Mark, Garaldi, Enrico, Smith, Aaron, Kannan, Rahul, Tacchella, Sandro, Zavala, Jesús, Hernquist, Lars, Yeh, Jessica Y. -C., Zheng, Chunyuan
Using high-resolution cosmological radiation-hydrodynamic (RHD) simulations (THESAN-HR), we explore the impact of alternative dark matter (altDM) models on galaxies during the Epoch of Reionization. The simulations adopt the IllustrisTNG galaxy forma
Externí odkaz:
http://arxiv.org/abs/2304.06742
Autor:
Mocz, Philip, Fialkov, Anastasia, Vogelsberger, Mark, Boylan-Kolchin, Michael, Chavanis, Pierre-Henri, Amin, Mustafa A., Bose, Sownak, Dome, Tibor, Hernquist, Lars, Lancaster, Lachlan, Notis, Matthew, Painter, Connor, Robles, Victor H., Zavala, Jesus
We investigate cosmological structure formation in Fuzzy Dark Matter (FDM) with an attractive self-interaction (SI) with numerical simulations. Such a SI would arise if the FDM boson were an ultra-light axion, which has a strong CP symmetry-breaking
Externí odkaz:
http://arxiv.org/abs/2301.10266
Autor:
Burger, Jan D., Zavala, Jesús, Sales, Laura V., Vogelsberger, Mark, Marinacci, Federico, Torrey, Paul
Publikováno v:
Phys. Rev. Lett. 129, 191103, Published 1 November 2022
Impulsive supernova feedback and non-standard dark matter models, such as self-interacting dark matter (SIDM), are the two main contenders for the role of the dominant core formation mechanism at the dwarf galaxy scale. Here we show that the impulsiv
Externí odkaz:
http://arxiv.org/abs/2211.03795
Autor:
O'Neil, Stephanie, Vogelsberger, Mark, Heeba, Saniya, Schutz, Katelin, Rose, Jonah C., Torrey, Paul, Borrow, Josh, Low, Ryan, Adhikari, Rakshak, Medvedev, Mikhail V., Slatyer, Tracy R., Zavala, Jesús
Self-interacting dark matter (SIDM) offers the potential to mitigate some of the discrepancies between simulated cold dark matter (CDM) and observed galactic properties. We introduce a physically motivated SIDM model to understand the effects of self
Externí odkaz:
http://arxiv.org/abs/2210.16328
Publikováno v:
Physical Review D, Volume 107, Issue 8, article id.083010, Year 2023 Physical Review D, Volume 107, Issue 8, article id.083010
Milky Way (MW) satellites exhibit a diverse range of internal kinematics, reflecting in turn a diverse set of subhalo density profiles. These profiles include large cores and dense cusps, which any successful dark matter model must explain simultaneo
Externí odkaz:
http://arxiv.org/abs/2210.01817
Autor:
Lovell, Mark R., Zavala, Jesús
Any successful model of dark matter must explain the diversity of observed Milky Way (MW) satellite density profiles, from very dense ultrafaints to large, low density satellites such as Crater~II that appear to be larger their anticipated host dark
Externí odkaz:
http://arxiv.org/abs/2209.06834
Autor:
Adhikari, Susmita, Banerjee, Arka, Boddy, Kimberly K., Cyr-Racine, Francis-Yan, Desmond, Harry, Dvorkin, Cora, Jain, Bhuvnesh, Kahlhoefer, Felix, Kaplinghat, Manoj, Nierenberg, Anna, Peter, Annika H. G., Robertson, Andrew, Sakstein, Jeremy, Zavala, Jesús
Self-interacting dark matter (SIDM) arises generically in scenarios for physics beyond the Standard Model that have dark sectors with light mediators or strong dynamics. The self-interactions allow energy and momentum transport through halos, alterin
Externí odkaz:
http://arxiv.org/abs/2207.10638
Autor:
Despali, Giulia, Walls, Levi G., Vegetti, Simona, Sparre, Martin, Vogelsberger, Mark, Zavala, Jesús
We study the effect of self-interacting dark matter (SIDM) and baryons on the shape of early-type galaxies (ETGs) and their dark matter haloes, comparing them to the predictions of the cold dark matter (CDM) scenario. We use five hydrodynamical zoom-
Externí odkaz:
http://arxiv.org/abs/2204.12502
Autor:
Kurmus, Ali, Bose, Sownak, Lovell, Mark, Cyr-Racine, Francis-Yan, Vogelsberger, Mark, Pfrommer, Christoph, Zavala, Jesús
Observations of the high redshift universe provide a promising avenue for constraining the nature of the dark matter (DM). This will be even more true with the advent of the James Webb Space Telescope (JWST). We run cosmological simulations of galaxy
Externí odkaz:
http://arxiv.org/abs/2203.04985