Výsledky vyhledávání - "Prochaska, Jason Xavier"

Report

Gamma-ray Bursts as Distance Indicators by a Statistical Learning Approach

Autor: Dainotti, Maria Giovanna, Narendra, Aditya, Pollo, Agnieszka, Petrosian, Vahe, Bogdan, Malgorzata, Iwasaki, Kazunari, Prochaska, Jason Xavier, Rinaldi, Enrico, Zhou, David

Gamma-ray bursts (GRBs) can be probes of the early universe, but currently, only 26% of GRBs observed by the Neil Gehrels Swift Observatory GRBs have known redshifts ($z$) due to observational limitations. To address this, we estimated the GRB redshi

Externí odkaz: http://arxiv.org/abs/2402.04551

Zobrazit plný text záznamu

Report

Circumgalactic Medium at High Halo Masses -- Signatures of Cold Gas Depletion in Luminous Red Galaxies

Autor: Smailagic, Marijana, Prochaska, Jason Xavier, Burchett, Joseph, Zhu, Guangtun

We study ultraviolet HI and metal line transitions in the circumgalactic medium (CGM) of 15 massive, quenched luminous red galaxies (LRGs) at redshift $z\sim 0.5$ and with impact parameters up to 400 kpc. We selected 8 of LRG-CGM systems to study gen

Externí odkaz: http://arxiv.org/abs/2310.11717

Zobrazit plný text záznamu

Report

Inspiraling streams of enriched gas observed around a massive galaxy 11 billion years ago

Stars form in galaxies, from gas that has been accreted from the intergalactic medium. Simulations have shown that recycling of gas-the reaccretion of gas that was previously ejected from a galaxy-could sustain star formation in the early Universe. W

Externí odkaz: http://arxiv.org/abs/2305.02344

Zobrazit plný text záznamu

Plný text ve formátu HTML

Report

Discovery of a protocluster core associated with an enormous Ly$\alpha$ Nebula at $z = 2.3$

Autor: Li, Qiong, Wang, Ran, Dannerbauer, Helmut, Cai, Zheng, Emonts, Bjorn, Prochaska, Jason Xavier, Battaia, Fabrizio Arrigoni, Neri, Roberto, Zhang, Chengpeng, Fan, Xiaohui, Jin, Shuowen, Yoon, Ilsang, Bechtel, Shane

The MAMMOTH-1 nebula at $z=2.317$ is an enormous Ly$\alpha$ nebula (ELAN) extending to a $\sim$440 kpc scale at the center of the extreme galaxy overdensity BOSS 1441. In this paper, we present observations of the $\rm CO(3-2)$ and 250 GHz dust-conti

Externí odkaz: http://arxiv.org/abs/2111.01384

Zobrazit plný text záznamu

Report

Extreme circumgalactic HI and CIII absorption around the most massive, quenched galaxies

Autor: Smailagić, Marijana, Prochaska, Jason Xavier, Burchett, Joseph, Zhu, Guangtun, Ménard, Brice

Luminous red galaxies (LRGs) are the most massive galaxies at $z\sim 0.5$ and, by selection, have negligible star formation. These objects have halo masses between those of $L_{*}$ galaxies, whose circumgalactic media (CGM) are observed to have large

Externí odkaz: http://arxiv.org/abs/1809.09777

Zobrazit plný text záznamu

Report

A Metal-Strong and Dust-Rich Damped \lya Absorption System toward the Quasar SDSS J115705.52+615521.7

Autor: Wang, Jian-Guo, Zhou, Hong-Yan, Ge, Jian, Jiang, Peng, Lu, Hong-Lin, Prochaska, Jason Xavier, Hamann, Fred, Wang, Hui-Yuan, Wang, Ting-Gui, Yuan, WeiMin

Publikováno v: 2012, ApJ, 760, 42

(Abridged for arXiv) We report the discovery of an unusual, extremely dust-rich and metal-strong damped \lya absorption system (DLA) at a redshift $z_{a}=2.4596$ toward the quasar SDSS J115705.52+615521.7 (hereafter J1157+6155) with an emission-line

Externí odkaz: http://arxiv.org/abs/1210.1154

Zobrazit plný text záznamu

The 4MOST–Gaia Purely Astrometric Quasar Survey (4G-PAQS)

The 4MOST–Gaia Purely Astrometric Quasar Survey (4G-PAQS) will carry out the first large-scale, colour-independent quasar survey selected solely on the basis of astrometry from Gaia. Our main objective is to quantify the selection effects of curren

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::60147277f0aef7e4805ad9f25badf504

Zobrazit plný text záznamu