Zobrazeno 1 - 10
of 48
pro vyhledávání: '"Green, Jemma"'
Autor:
Neyer, Meredith, Wolcott-Green, Jemma
We study the impact of neutral hydrogen absorption on ${\rm H_2}$ photodissociation in protogalactic haloes exposed to soft-UV radiation. Lyman-series absorption can significantly deplete dissociating photons as line overlap with the ${\rm H_2}$ Lyma
Externí odkaz:
http://arxiv.org/abs/2210.09532
We study the thermal evolution of UV-irradiated atomic cooling haloes using high-resolution three-dimensional hydrodynamic simulations. We consider the effect of H^- photodetachment by Ly{\alpha} cooling radiation trapped in the optically-thick cores
Externí odkaz:
http://arxiv.org/abs/2001.05498
Autor:
Green, Jemma
The conservation of aquatic-breeding amphibian populations and their habitats is increasingly challenged by urban and rural development, which is occurring more intensively and more rapidly than ever before. Some species are now impacted by developme
Externí odkaz:
https://dspace.library.uvic.ca//handle/1828/10091
Autor:
Haiman, Zoltán, Brandt, William N., Vikhlinin, Alexey, Bellovary, Jillian, Gallo, Elena, Greene, Jenny, Inayoshi, Kohei, Lazio, Joseph, Lehmer, Bret, Luo, Bin, Madau, Piero, Natarajan, Priya, Özel, Feryal, Pacucci, Fabio, Sesana, Alberto, Stern, Daniel, Vignali, Christian, Visbal, Eli, Vito, Fabio, Volonteri, Marta, Wrobel, Joan, Berti, Emanuele, Bromm, Volker, Bryan, Greg, Cappelluti, Nico, Fialkov, Anastasia, Haehnelt, Martin, Regan, John, Ricarte, Angelo, Wise, John, Wolcott-Green, Jemma
Massive 10^6-10^10 Msun black holes (BHs) are ubiquitous in local galactic nuclei. They were common by the time the Universe is several Gyr old, and many of them were in place within the first 1~Gyr after the Big Bang. Their quick assembly has been a
Externí odkaz:
http://arxiv.org/abs/1903.08579
Akademický článek
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Autor:
Wolcott-Green, Jemma, Haiman, Zoltán
It is commonly believed that the earliest stages of star-formation in the Universe were self-regulated by global radiation backgrounds - either by the ultraviolet Lyman-Werner (LW) photons emitted by the first stars (directly photodissociating H_2),
Externí odkaz:
http://arxiv.org/abs/1206.1861
The ability of primordial gas to cool in proto-galactic haloes exposed to Lyman-Werner (LW) radiation is critically dependent on the self-shielding of H_2. We perform radiative transfer calculations of LW line photons, post-processing outputs from th
Externí odkaz:
http://arxiv.org/abs/1106.3523
Autor:
Wolcott-Green, Jemma, Haiman, Zoltán
It has been shown that HD molecules can form efficiently in metal-free gas collapsing into massive protogalactic halos at high redshift. The resulting radiative cooling by HD can lower the gas temperature to that of the cosmic microwave background, T
Externí odkaz:
http://arxiv.org/abs/1009.1087
Akademický článek
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