Zobrazeno 1 - 10
of 325
pro vyhledávání: '"Muñoz, Julian"'
Autor:
Kokorev, Vasily, Atek, Hakim, Chisholm, John, Endsley, Ryan, Chemerynska, Iryna, Muñoz, Julian B., Furtak, Lukas J., Pan, Richard, Berg, Danielle, Fujimoto, Seiji, Oesch, Pascal A., Weibel, Andrea, Adamo, Angela, Blaizot, Jeremy, Bouwens, Rychard, Dessauges-Zavadsky, Miroslava, Khullar, Gourav, Korber, Damien, Goovaerts, Ilias, Jecmen, Michelle, Labbé, Ivo, Leclercq, Floriane, Marques-Chaves, Rui, Mason, Charlotte, McQuinn, Kristen B. W., Naidu, Rohan, Natarajan, Priyamvada, Nelson, Erica, Rosdahl, Joki, Saldana-Lopez, Alberto, Schaerer, Daniel, Trebitsch, Maxime, Volonteri, Marta, Zitrin, Adi
We report the discovery of five galaxy candidates at redshifts between $15.9
Externí odkaz:
http://arxiv.org/abs/2411.13640
The observed prevalence of galaxies exhibiting bursty star formation histories (SFHs) at $z\gtrsim6$ has created new challenges and opportunities for understanding their formation pathways. The degenerate effects of the efficiency and burstiness of s
Externí odkaz:
http://arxiv.org/abs/2410.21409
Autor:
Cain, Christopher, Lopez, Garett, D'Aloisio, Anson, Munoz, Julian B., Jansen, Rolf A., Windhorst, Rogier A., Gangolli, Nakul
Recent JWST observations at $z > 6$ may imply galactic ionizing photon production in excess of prior expectations. Under observationally motivated assumptions about escape fractions, these suggest a $z \sim 8-9$ end to reionization, in strong tension
Externí odkaz:
http://arxiv.org/abs/2409.02989
Autor:
Nguyen, Tri, Villaescusa-Navarro, Francisco, Mishra-Sharma, Siddharth, Cuesta-Lazaro, Carolina, Torrey, Paul, Farahi, Arya, Garcia, Alex M., Rose, Jonah C., O'Neil, Stephanie, Vogelsberger, Mark, Shen, Xuejian, Roche, Cian, Anglés-Alcázar, Daniel, Kallivayalil, Nitya, Muñoz, Julian B., Cyr-Racine, Francis-Yan, Roy, Sandip, Necib, Lina, Kollmann, Kassidy E.
The connection between galaxies and their host dark matter (DM) halos is critical to our understanding of cosmology, galaxy formation, and DM physics. To maximize the return of upcoming cosmological surveys, we need an accurate way to model this comp
Externí odkaz:
http://arxiv.org/abs/2409.02980
Analyses of the cosmic 21-cm signal are hampered by astrophysical foregrounds that are far stronger than the signal itself. These foregrounds, typically confined to a wedge-shaped region in Fourier space, often necessitate the removal of a vast major
Externí odkaz:
http://arxiv.org/abs/2407.21097
Observations of the 21-cm signal are opening a window to the cosmic-dawn epoch, when the first stars formed. These observations are usually interpreted with semi-numerical or hydrodynamical simulations, which are often computationally intensive and i
Externí odkaz:
http://arxiv.org/abs/2407.18294
We study the cosmological impact of warm, dark-sector relic particles produced as Hawking radiation in a primordial-black-hole-dominated universe before big bang nucleosynthesis. If those dark-sector particles are stable, they would survive to the pr
Externí odkaz:
http://arxiv.org/abs/2406.08535
Autor:
Rose, Jonah C., Torrey, Paul, Villaescusa-Navarro, Francisco, Lisanti, Mariangela, Nguyen, Tri, Roy, Sandip, Kollmann, Kassidy E., Vogelsberger, Mark, Cyr-Racine, Francis-Yan, Medvedev, Mikhail V., Genel, Shy, Anglés-Alcázar, Daniel, Kallivayalil, Nitya, Wang, Bonny Y., Costanza, Belén, O'Neil, Stephanie, Roche, Cian, Karmakar, Soumyodipta, Garcia, Alex M., Low, Ryan, Lin, Shurui, Mostow, Olivia, Cruz, Akaxia, Caputo, Andrea, Farahi, Arya, Muñoz, Julian B., Necib, Lina, Teyssier, Romain, Dalcanton, Julianne J., Spergel, David
We introduce the DREAMS project, an innovative approach to understanding the astrophysical implications of alternative dark matter models and their effects on galaxy formation and evolution. The DREAMS project will ultimately comprise thousands of co
Externí odkaz:
http://arxiv.org/abs/2405.00766
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
New James Webb Space Telescope (JWST) observations are revealing the first galaxies to be prolific producers of ionizing photons, which we argue gives rise to a tension between different probes of reionization. Over the last two decades a consensus h
Externí odkaz:
http://arxiv.org/abs/2404.07250