Zobrazeno 1 - 10
of 337
pro vyhledávání: '"Puchwein, Ewald"'
We investigate early, $z > 3$, galaxy formation in a cosmological zoom-in simulation of a close, early-forming Milky Way (MW) analog extracted from TNG50 simulation and re-simulated with detailed modeling of cold interstellar medium (ISM) formation,
Externí odkaz:
http://arxiv.org/abs/2409.18173
Autor:
Asthana, Shikhar, Haehnelt, Martin G., Kulkarni, Girish, Bolton, James S., Gaikwad, Prakash, Keating, Laura C., Puchwein, Ewald
The relative contribution of emission from stellar sources and accretion onto supermassive black holes to reionization has been brought into focus again by the apparent high abundance of faint AGN at $4\lesssim z\lesssim11$ uncovered by JWST. We inve
Externí odkaz:
http://arxiv.org/abs/2409.15453
Autor:
Feron, Jennifer, Conaboy, Luke, Bolton, James S., Chapman, Emma, Haehnelt, Martin G., Keating, Laura C., Kulkarni, Girish, Puchwein, Ewald
Recent evidence supporting reionisation ending at redshift z<6 includes the rapid redshift evolution of the mean free path for Lyman-limit photons through the intergalactic medium at 5
Externí odkaz:
http://arxiv.org/abs/2406.19184
Autor:
Zhu, Yongda, Becker, George D., Bosman, Sarah E. I., Cain, Christopher, Keating, Laura C., Nasir, Fahad, D'Odorico, Valentina, Bañados, Eduardo, Bian, Fuyan, Bischetti, Manuela, Bolton, James S., Chen, Huanqing, D'Aloisio, Anson, Davies, Frederick B., Davies, Rebecca L., Eilers, Anna-Christina, Fan, Xiaohui, Gaikwad, Prakash, Greig, Bradley, Haehnelt, Martin G., Kulkarni, Girish, Lai, Samuel, Puchwein, Ewald, Qin, Yuxiang, Ryan-Weber, Emma V., Satyavolu, Sindhu, Spina, Benedetta, Walter, Fabian, Wang, Feige, Wolfson, Molly, Yang, Jinyi
Recent quasar absorption line observations suggest that reionization may end as late as $z \approx 5.3$. As a means to search for large neutral hydrogen islands at $z<6$, we revisit long dark gaps in the Ly$\beta$ forest in VLT/X-Shooter and Keck/ESI
Externí odkaz:
http://arxiv.org/abs/2405.12275
Simulations and observations find long tails in jellyfish galaxies, which are commonly thought to originate from ram-pressure stripped gas of the interstellar medium (ISM) in the immediate galactic wake. While at larger distances from the galaxy, the
Externí odkaz:
http://arxiv.org/abs/2405.00768
Publikováno v:
2024, Journal of Open Source Software, 9(96), 6296
We present Paicos, a new object-oriented Python package for analyzing simulations performed with Arepo. Paicos strives to reduce the learning curve for students and researchers getting started with Arepo simulations. As such, Paicos includes many exa
Externí odkaz:
http://arxiv.org/abs/2404.14484
Autor:
Nasir, Fahad, Gaikwad, Prakash, Davies, Frederick B., Bolton, James S., Puchwein, Ewald, Bosman, Sarah E. I.
Unveiling the thermal history of the intergalactic medium (IGM) at $4 \leq z \leq 5$ holds the potential to reveal early onset HeII reionization or lingering thermal fluctuations from HI reionization. We set out to reconstruct the IGM gas properties
Externí odkaz:
http://arxiv.org/abs/2404.05794
Jellyfish galaxies are promising laboratories for studying radiative cooling and magnetic fields in multiphase gas flows. Their long, dense tails are observed to be magnetised, and they extend up to 100 kpc into the intracluster medium (ICM), suggest
Externí odkaz:
http://arxiv.org/abs/2311.05679
Autor:
Khan, Nabendu Kumar, Kulkarni, Girish, Bolton, James S., Haehnelt, Martin G., Iršič, Vid, Puchwein, Ewald, Asthana, Shikhar
Confronting measurements of the Lyman-$\alpha$ forest with cosmological hydrodynamical simulations has produced stringent constraints on models of particle dark matter and the thermal and ionization state of the intergalactic medium. We investigate t
Externí odkaz:
http://arxiv.org/abs/2310.07767
Autor:
Iršič, Vid, Viel, Matteo, Haehnelt, Martin G., Bolton, James S., Molaro, Margherita, Puchwein, Ewald, Boera, Elisa, Becker, George D., Gaikwad, Prakash, Keating, Laura C., Kulkarni, Girish
Publikováno v:
Phys. Rev. D, 109, 043511 (2024)
This study introduces novel constraints on the free-streaming of thermal relic warm dark matter (WDM) from Lyman-$\alpha$ forest flux power spectra. Our analysis utilises a high-resolution, high-redshift sample of quasar spectra observed using the HI
Externí odkaz:
http://arxiv.org/abs/2309.04533