Two Modes of LyC Escape From Bursty Star Formation: Implications for [C II] Deficits and the Sources of Reionization

Autor: Harley Katz, Aayush Saxena, Joki Rosdahl, Taysun Kimm, Jeremy Blaizot, Thibault Garel, Leo Michel-Dansac, Martin Haehnelt, Richard S Ellis, Laura Penterrici, Julien Devriendt, Adrianne Slyz

Publikováno v: Monthly Notices of the Royal Astronomical Society
Monthly Notices of the Royal Astronomical Society, 2023, 518 (1), pp.270-285. ⟨10.1093/mnras/stac3019⟩

We use the SPHINX$^{20}$ cosmological radiation hydrodynamics simulation to study how Lyman Continuum (LyC) photons escape from galaxies and the observational signatures of this escape. We define two classes of LyC leaker: Bursty Leakers and Remnant

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e0886d42294e18d414e424db4142191b
http://arxiv.org/abs/2210.09156

LyC escape from SPHINX galaxies in the Epoch of Reionization

Autor: Joakim Rosdahl, Jérémy Blaizot, Harley Katz, Taysun Kimm, Thibault Garel, Martin Haehnelt, Laura C Keating, Sergio Martin-Alvarez, Léo Michel-Dansac, Pierre Ocvirk

Publikováno v: Monthly Notices of the Royal Astronomical Society
Monthly Notices of the Royal Astronomical Society, 2022, 515, pp.2386-2414. ⟨10.1093/mnras/stac1942⟩
Monthly Notices of the Royal Astronomical Society, 2022, 515 (2), pp.2386-2414. ⟨10.1093/mnras/stac1942⟩

We measure escape fractions, $f_{\rm esc}$, of ionizing radiation from galaxies in the SPHINX suite of cosmological radiation-hydrodynamical simulations of reionization, resolving halos with $M_{\rm vir} \gtrapprox 7.5 \times 10^7 \ M_{\odot}$ with a

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e5ab95807ad3e50acb7a96708d71fbdb
https://hal-insu.archives-ouvertes.fr/insu-03763015

Probing Dark Matter, Galaxies and the Expansion History of the Universe with Lyα in Absorption and Emission

Autor: Martin Haehnelt

Publikováno v: Reviews in Modern Astronomy. :117-132

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::b29df83ce0b9e827aad86de276840c3d
https://doi.org/10.1002/9783527634842.ch6

Seeding High Redshift QSOs by Collisional Runaway in Primordial Star Clusters

Autor: Katz, Harley, Sijacki, Debora, Martin Haehnelt

Publikováno v: NASA Astrophysics Data System

We study how runaway stellar collisions in high-redshift, metal-poor star clusters form very massive stars (VMSs) that can directly collapse to intermediate-mass black holes (IMBHs). We follow the evolution of a pair of neighbouring high-redshift min

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ab035d236a1282e17bd49bded922ab7f
http://arxiv.org/abs/1502.03448

Improved measurements of the intergalactic medium temperature around quasars: possible evidence for the initial stages of He-II reionisation at z~6

Autor: Bolton, James S., Becker, George D., Raskutti, Sudhir, Wyithe, J. Stuart B., Martin Haehnelt, Sargent, Wallace L. W.

Publikováno v: NASA Astrophysics Data System

We present measurements of the intergalactic medium (IGM) temperature within ~5 proper Mpc of seven luminous quasars at z~6. The constraints are obtained from the Doppler widths of Lyman-alpha absorption lines in the quasar near-zones and build upon

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f18f73ff349a3ff257b43d2bde2e007a