Results 91 to 100 of about 1,317 (190)

UEG Week 2025 Moderated Posters

United European Gastroenterology Journal, Volume 13, Issue S8, Page S189-S802, October 2025.
wiley   +1 more source

Metal-strong Inflows at the Outer-galactic-scale of a Quasar

The Astrophysical Journal
We present an analysis of the absorption-line system in the Very Large Telescope/Ultraviolet and Visual Echelle Spectrograph spectrum at a redshift of z _a = 3.1448 associated with the quasar SDSS J122040.23+092326.96, whose systematic redshift is z _e =
Qiguo Tian, Lei Hao, Yipeng Zhou, Xiheng Shi, Tuo Ji, Peng Jiang, Lin Lin, Zhenya Zheng, Hongyan Zhou   +8 more
doaj   +1 more source

UEG Week 2025 Poster Presentations

United European Gastroenterology Journal, Volume 13, Issue S8, Page S803-S1476, October 2025.
wiley   +1 more source

Measuring the Mean Free Path of H i Ionizing Photons at 3.2 ≤ z ≤ 4.6 with DESI Y1 Quasars

The Astrophysical Journal Letters
The mean free path of ionizing photons in the intergalactic medium (IGM; ${\lambda }_{{\rm{mfp}}}^{912}$ ) is a crucial quantity in modeling the ionization state of the IGM and the extragalactic ultraviolet background, and it is widely used in ...
Anning Gao, J. Xavier Prochaska, Zheng Cai, Siwei Zou, Cheng Zhao, Zechang Sun, S. Ahlen, D. Bianchi, D. Brooks, T. Claybaugh, A. de la Macorra, Arjun Dey, P. Doel, J. E. Forero-Romero, E. Gaztañaga, S. Gontcho A Gontcho, G. Gutierrez, K. Honscheid, S. Juneau, A. Kremin, P. Martini, A. Meisner, R. Miquel, J. Moustakas, A. Muñoz-Gutiérrez, J. A. Newman, I. Pérez-Ràfols, G. Rossi, E. Sanchez, M. Schubnell, D. Sprayberry, G. Tarlé, B. A. Weaver, H. Zou   +33 more
doaj   +1 more source

The Cosmic Ultraviolet Baryon Survey (CUBS). VII. On the Warm-hot Circumgalactic Medium Probed by O vi and Ne viii at 0.4 ≲ z ≲ 0.7

The Astrophysical Journal
This paper presents a newly established sample of 103 unique galaxies or galaxy groups at 0.4 ≲ z ≲ 0.7 from the Cosmic Ultraviolet Baryon Survey (CUBS) for studying the warm-hot circumgalactic medium (CGM) probed by both O vi and Ne viii absorption. The
Zhijie Qu, Hsiao-Wen Chen, Sean D. Johnson, Gwen C. Rudie, Fakhri S. Zahedy, David DePalma, Joop Schaye, Erin T. Boettcher, Sebastiano Cantalupo, Mandy C. Chen, Claude-André Faucher-Giguère, Jennifer I-Hsiu Li, John S. Mulchaey, Patrick Petitjean, Marc Rafelski   +14 more
doaj   +1 more source

EIGER IV. The Cool 104 K Circumgalactic Environment of High-redshift Galaxies Reveals Remarkably Efficient Intergalactic Medium Enrichment

The Astrophysical Journal
We report new observations of the cool diffuse gas around 29, 2.3 < z < 6.3 galaxies using deep JWST/NIRCam slitless grism spectroscopy around the sight line to the quasar J0100+2802. The galaxies span a stellar mass range of $7.1\leqslant {\rm{log}}{M}_{
Rongmon Bordoloi, Robert A. Simcoe, Jorryt Matthee, Daichi Kashino, Ruari Mackenzie, Simon J. Lilly, Anna-Christina Eilers, Bin Liu, David DePalma, Minghao Yue, Rohan P. Naidu   +10 more
doaj   +1 more source

The Cosmic Evolution of C IV Absorbers at 1.4 < z < 4.5: Insights from 100,000 Systems in DESI Quasars

The Astrophysical Journal
We present the largest catalog to date of triply ionized carbon (C iv ) absorbers detected in quasar spectra from the Dark Energy Spectroscopic Instrument.
Abhijeet Anand, J. Aguilar, S. Ahlen, D. Bianchi, A. Brodzeller, D. Brooks, R. Canning, T. Claybaugh, A. Cuceu, A. de la Macorra, P. Doel, S. Ferraro, A. Font-Ribera, J. E. Forero-Romero, E. Gaztañaga, S. Gontcho A Gontcho, G. Gutierrez, J. Guy, H. K. Herrera-Alcantar, M. Ishak, S. Juneau, R. Kehoe, A. Kremin, M. Landriau, L. Le Guillou, M. E. Levi, M. Manera, A. Meisner, R. Miquel, J. Moustakas, A. Muñoz-Gutiérrez, L. Napolitano, I. Pérez-Ràfols, G. Rossi, E. Sanchez, D. Schlegel, M. Schubnell, D. Sprayberry, G. Tarlé, M. J. Temple, B. A. Weaver, R. Zhou   +41 more
doaj   +1 more source

ePoster

European Journal of Neurology, Volume 32, Issue S1, June 2025.
wiley   +1 more source

The Cosmic Evolution and Spatial Distribution of Multiphase Gas Associated with QSOs

The Astrophysical Journal Letters
We investigate the multiphase gas surrounding QSOs traced by 33 absorption lines (e.g., Ly α , C iv , Fe ii , Mg ii , etc.) in the stacked spectra of background sources, using the Early Data Release from the Dark Energy Spectroscopic Instrument.
Zeyu Chen, Enci Wang, Hu Zou, Haoran Yu, Zhicheng He, Huiyuan Wang, Yang Gao, Cheqiu Lyu, Cheng Jia, Chengyu Ma, Weiyu Ding, Runyu Zhu, Xu Kong   +12 more
doaj   +1 more source

MUSEQuBES: Connecting H i Absorption with Lyα Emitters at z ≈ 3.3

The Astrophysical Journal
We present a comprehensive analysis of H i absorption around 96 Ly α emitters (LAEs) at z  ≈ 3.3 (median Ly α luminosity ≈10 ^42 erg s ^−1 ). These LAEs were identified within eight MUSE fields, each $1^{\prime} \times 1^{\prime} $ on the sky and ...
Eshita Banerjee, Sowgat Muzahid, Joop Schaye, Jérémy Blaizot, Nicolas Bouché, Sebastiano Cantalupo, Sean D. Johnson, Jorryt Matthee, Anne Verhamme   +8 more
doaj   +1 more source