Results 111 to 120 of about 252,176 (198)

Testing Lyα Emitters and Lyman-break Galaxies as Tracers of Large-scale Structures at High Redshifts

The Astrophysical Journal
We test whether Lyα emitters (LAEs) and Lyman-break galaxies (LBGs) can be good tracers of high- z large-scale structures, using the Horizon Run 5 cosmological hydrodynamical simulation.
Sang Hyeok Im, Ho Seong Hwang, Jaehong Park, Jaehyun Lee, Hyunmi Song, Stephen Appleby, Yohan Dubois, C. Gareth Few, Brad K. Gibson, Juhan Kim, Yonghwi Kim, Changbom Park, Christophe Pichon, Jihye Shin, Owain N. Snaith, M. Celeste Artale, Eric Gawiser, Lucia Guaita, Woong-Seob Jeong, Kyoung-Soo Lee, Nelson Padilla, Vandana Ramakrishnan, Paulina Troncoso, Yujin Yang   +23 more
doaj   +1 more source

The FORS Deep Field Spectroscopic Survey

, 2004
We present a catalogue and atlas of low-resolution spectra of a well defined sample of 341 objects in the FORS Deep Field. All spectra were obtained with the FORS instruments at the ESO VLT with essentially the same spectroscopic set-up.
A. Böhm, A. Gabasch, Adelberger, Adelberger, Appenzeller, B. L. Ziegler, C. Tapken, Calzetti, Charlot, Cohen, Connolly, Cowie, Cristiani, D. Mehlert, Daddi, Ferguson, Ferguson, Fernández-Soto, Frank, Frye, Giavalisco, Hamuy, Hamuy, Heckman, Heidt, Horne, Hu, Hu, Hu, I. Appenzeller, Idzi, J. Heidt, K. Jäger, Kennicutt, Kinney, Kinney, Kunth, Lehnert, Leitherer, Leitherer, Leitherer, Lowenthal, Madau, Maier, Maraston, Martín, Mehlert, Mehlert, Menou, Morgan, O. Stahl, Oke, Pettini, Pettini, Pickles, R. Bender, Rhoads, S. Noll, S. Seitz, Schaerer, Schlegel, Shapley, Shapley, Simkin, Spinrad, Steidel, Steidel, Steidel, Steidel, Steidel, Steidel, Tapken, Tonry, Tüg, U. Hopp, Vanzella, Walborn, Weymann, Williams, Ziegler   +79 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

The Structure and Kinematics of the Circum-Galactic Medium from Far-UV Spectra of z~2-3 Galaxies

, 2010
We present new results on the kinematics and spatial distribution of metal-enriched gas within 125 kpc (physical) of Lyman Break galaxies at redshifts z~2-3.
Adelberger, Adelberger, Adelberger, Adelberger, Adelberger, Alice E. Shapley, Bergeron, Bouché, Brooks, Charles C. Steidel, Chen, Chen, Colina, Conroy, Danforth, Dawn K. Erb, Dijkstra, Dijkstra, Erb, Erb, Erb, Erb, Erb, Franx, Furlanetto, Förster Schreiber, Goerdt, Grimes, Gwen C. Rudie, Haiman, Hayashino, Kacprzak, Kennicutt, Kornei, Laursen, Law, Lehnert, Lehnert, Madau, Martin, Martin, Martin, Mas-Hesse, Matsuda, Max Pettini, Milan Bogosavljević, Mori, Murray, Ménard, Navarro, Naveen Reddy, Olivera Rakic, Pettini, Pettini, Pettini, Rauch, Rauch, Reddy, Reddy, Reddy, Reddy, Rupke, Sanders, Scannapieco, Schwartz, Shapley, Shapley, Shapley, Shapley, Steidel, Steidel, Steidel, Steidel, Steidel, Steidel, Steidel, Strickland, Strickland, Tremonti, Weiner, Zheng   +80 more
core   +1 more source

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

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

Clustering at high redshift: The connection between Lyman Alpha emitters and Lyman break galaxies

, 2013
We present a physically motivated semi-analytic model to understand the clustering of high redshift Lyman Alpha Emitters (LAEs). We show that the model parameters constrained by the observed luminosity functions, can be used to predict large scale bias ...
Jose, Charles, Srianand, Raghunathan, Subramanian, Kandaswamy   +2 more
core   +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

Enantiomeric Excesses of Aminonitrile Precursors Determine the Homochirality of Amino Acids. [PDF]

J Phys Chem Lett, 2023
Shoji M, Kitazawa Y, Sato A, Watanabe N, Boero M, Shigeta Y, Umemura M.   +6 more
europepmc   +1 more source

Using Lyman-alpha to detect galaxies that leak Lyman continuum

, 2015
We propose to infer ionising continuum leaking properties of galaxies by looking at their Lyman-alpha line profiles. We carry out Lyman-alpha radiation transfer calculations in two models of HII regions which are porous to ionising continuum escape: 1 ...
Hayes, M., Orlitova, I., Schaerer, D., Verhamme, A.   +3 more
core   +1 more source