Results 81 to 90 of about 14,388 (158)

Lyα at Cosmic Dawn with a Simulated Roman Grism Deep Field

The Astronomical Journal
The slitless grism on the Nancy Grace Roman Space Telescope will enable deep near-infrared spectroscopy over a wide field of view. We demonstrate Roman's capability to detect Ly α galaxies at z > 7 using a multiple position angle (PA) observational ...
Isak G. B. Wold, Sangeeta Malhotra, James E. Rhoads, Vithal Tilvi, Austen Gabrielpillai   +4 more
doaj   +1 more source

Forming intracluster gas in a galaxy protocluster at a redshift of 2.16. [PDF]

Nature, 2023
Di Mascolo L, Saro A, Mroczkowski T, Borgani S, Churazov E, Rasia E, Tozzi P, Dannerbauer H, Basu K, Carilli CL, Ginolfi M, Miley G, Nonino M, Pannella M, Pentericci L, Rizzo F.   +15 more
europepmc   +1 more source

Damped Lyman-alpha Absorption Associated with an Early-Type Galaxy at Redshift z = 0.16377

, 1997
We report new HST and ground-based observations of a damped Lyman-alpha absorption system toward the QSO 0850+4400. The redshift of the absorption system is z = 0.163770 and the neutral hydrogen column density of the absorption system is log N = 19.81 cm*
Altan, Hakan, Barcons, Xavier, Chen, Hsiao-Wen, Fernandez-Soto, Alberto, Lanzetta, Kenneth M., Meyer, David, Ortiz-Gil, Amelia, Savaglio, Sandra, Webb, John, Wolfe, Arthur M., Yahata, Noriaki   +10 more
core   +1 more source

KBSS-InCLOSE. I. Design and First Results from the Inner Circumgalactic Medium of QSO Line-of-sight Emitting Galaxies at z ∼ 2–3

The Astrophysical Journal
We present the design and first results of the inner circumgalactic medium (CGM) of QSO line-of-sight emitting galaxies at z ∼ 2–3, Keck Baryonic Structure Survey (KBSS)-InCLOSE.
Evan Haze Nuñez, Charles C. Steidel, Evan N. Kirby, Gwen C. Rudie, Nikolaus Z. Prusinski, Yuguang Chen, Zhuyun Zhuang, Allison L. Strom, Dawn K. Erb, Max Pettini, Louise Welsh, David S. N. Rupke, Ryan J. Cooke   +12 more
doaj   +1 more source

Considering light-matter interactions in Friedmann equations based on the conformal FLRW metric. [PDF]

J Adv Res, 2023
Vavryčuk V.
europepmc   +1 more source

A photometric survey for Lyalpha-HeII dual emitters: Searching for Population III stars in high-redshift galaxies

, 2008
We present a new photometric search for high-z galaxies hosting Population III (PopIII) stars based on deep intermediate-band imaging observations obtained in the Subaru Deep Field (SDF), by using Suprime-Cam on the Subaru Telescope. By combining our new
Ajiki M., Ajiki M., Celestine Grady, Chun Ly, Daniel Schaerer, El Eid M. F., Iye M., Kashikawa N., Kentaro Motohara, Kodaira K., Madau P., Matthew A. Malkan, Miyazaki S., Nobunari Kashikawa, Roberto Maiolino, Shimasaku K., Shunji S. Sasaki, Takashi Murayama, Taniguchi Y., Taniguchi Y., Tohru Nagao, Tornatore L., Yamada S. F., Yasuhiro Shioya, Yoshiaki Taniguchi   +24 more
core   +3 more sources

Detection of companion galaxies around hot dust-obscured hyper-luminous galaxy W0410-0913. [PDF]

Nat Commun, 2022
Ginolfi M, Piconcelli E, Zappacosta L, Jones GC, Pentericci L, Maiolino R, Travascio A, Menci N, Carniani S, Rizzo F, Arrigoni Battaia F, Cantalupo S, De Breuck C, Graziani L, Knudsen K, Laursen P, Mainieri V, Schneider R, Stanley F, Valiante R, Verhamme A.   +20 more
europepmc   +1 more source

Challenging the LyC–Lyα Relation: Strong Lyα Emitters without LyC Leakage at z ∼ 2.3

The Astrophysical Journal
The escape fraction of Lyman continuum (LyC) ionizing radiation ( ${f}_{{\rm{esc}}}^{{\rm{LyC}}}$ ) is crucial for understanding reionization, yet difficult to measure at z  ≳ 4. Recently, studies have focused on calibrating indirect indicators of ${f}_{{
Annalisa Citro, Claudia M. Scarlata, Kameswara B. Mantha, Liliya R. Williams, Marc Rafelski, Mitchell Revalski, Matthew J. Hayes, Alaina Henry, Michael J. Rutkowski, Harry I. Teplitz, Andrea Grazian, Anahita Alavi   +11 more
doaj   +1 more source

Theoretical Investigation into a Possibility of Formation of Propylene Oxide Homochirality in Space. [PDF]

Astrobiology, 2022
Hori Y, Nakamura H, Sakawa T, Watanabe N, Kayanuma M, Shoji M, Umemura M, Shigeta Y.   +7 more
europepmc   +1 more source

Detection of dark galaxies and circum-galactic filaments fluorescently illuminated by a quasar at z=2.4

, 2012
A deep narrow-band survey for Ly-alpha emission carried out on the VLT-FORS2 has revealed 98 Ly-alpha candidates down to a flux limit of 4.e-18 erg/s/cm^2 in a volume of 5500 comoving Mpc^3 at z=2.4 centered on the hyperluminous quasar HE0109-3518.
Adelberger, Bajtlik, Barnes, Bertin, Bolton, Bouché, Cantalupo, Cantalupo, Cantalupo, Cantalupo, Cantalupo, Carswell, Charlot, Ciardullo, Cooke, Crampton, Croom, D'Odorico, Daddi, Dall'Aglio, Dawson, Dekel, Dekel, Di Matteo, Dijkstra, Dijkstra, Dubois, Falder, Fardal, Faucher-Giguère, Feldman, Ferland, Francis, Francis, Fumagalli, Fumagalli, Furlanetto, Fynbo, Gavazzi, Geha, Gehrels, Genzel, Giovanelli, Gnedin, Gnedin, Goerdt, Gonçalves, Gould, Grove, Guaita, Guaita, Haardt, Haiman, Haiman, Hayes, Heckman, Hennawi, Hennawi, Hennawi, Hogan, Jakobsen, Kennicutt, Kereš, Kirkman, Kollmeier, Komatsu, Krumholz, Krumholz, Kuhlen, Leitherer, Malhotra, Martin G. Haehnelt, Martini, Marziani, Matsuda, Meurer, Mo, Nilsson, Nilsson, Ocvirk, Oke, Osterbrock, Otí-Floranes, Ouchi, Penprase, Prescott, Rafelski, Raiter, Rauch, Rauch, Rauch, Rauch, Rees, Rosdahl, Saito, Scarlata, Schaerer, Schaye, Schiminovich, Schlegel, Scott, Sebastiano Cantalupo, Serber, Shemmer, Shimasaku, Simon J. Lilly, Stark, Steidel, Steidel, Telfer, Teyssier, Trainor, van de Voort, Venemans, White, Wolfe, Worseck, Yang, Yang, Zheng   +119 more
core   +1 more source