Results 1 to 10 of about 266,062 (301)

Measuring the 3D Clustering of Undetected Galaxies Through Cross Correlation of their Cumulative Flux Fluctuations from Multiple Spectral Lines

, 2010
We discuss a method for detecting the emission from high redshift galaxies by cross correlating flux fluctuations from multiple spectral lines. If one can fit and subtract away the continuum emission with a smooth function of frequency, the remaining ...
, , , , , , , , , , , , A. Loeb, A. Loeb, A.E.E. Rogers, A.R. Wetzel, Abraham Loeb, C.M. Bradford ., D. Babich, D.J. Fixsen, E. Komatsu ., Eli Visbal, G. Efstathiou, J. Binney, J.X. Prochaska, L. Hui, M. McQuinn, M.F. Morales, P. Panuzzo ., S. Malhotra ., X.-M. Wang, Z. Haiman   +31 more
core   +1 more source

The Balmer decrement of SDSS galaxies [PDF]

, 2011
High resolution spectra are necessary to distinguish and correctly measure the Balmer emission lines due to the presence of strong metal and Balmer absorption features in the stellar continuum.
Abazajian, Adelman-McCarthy, Baker, Berman, Brent Groves, Brinchmann, Bruzual, Calzetti, Calzetti, Cappellari, Cardelli, Carl Jakob Walcher, Cenarro, Charlot, Cid, da Cunha, Dopita, Falcón-Barroso, Ferland, Ferland, Ferland, Gallazzi, Garn, González, González, Groves, Jarle Brinchmann, Kauffmann, Kauffmann, Kennicutt, Kewley, Kewley, Lamareille, Le Borgne, Liang, Luridiana, Menzel, Ocvirk, Osterbrock, O’Donnell, Phillips, Poole, Seaton, Storey, Sánchez-Blázquez, Tojeiro, Tremonti, Walcher, Wild, Wild, Worthey   +50 more
core   +1 more source

Statistics for Galaxy Outflows at z ∼ 6–9 with Imaging and Spectroscopic Signatures Identified with JWST/NIRCam and NIRSpec Data

The Astrophysical Journal
We present statistics of z ∼ 6–9 galaxy outflows indicated by spatially extended gas emission and broad lines. With a total of 61 spectroscopically confirmed galaxies at z ∼ 6–9 in the JWST CEERS, GLASS, and ERO data, we find four galaxies with [O iii ] +
Yechi Zhang, Masami Ouchi, Kimihiko Nakajima, Yuichi Harikane, Yuki Isobe, Yi Xu, Yoshiaki Ono, Hiroya Umeda   +7 more
doaj   +1 more source

The 9 and 18 Micron Luminosity Function of Various Types of Galaxies with AKARI: Implication for the Dust Torus Structure of AGN

, 2013
We present the 9 and 18 micron luminosity functions (LFs) of galaxies at 0.006 < z < 0.8 (with an average redshift of ~ 0.04) using the AKARI mid-infrared all-sky survey catalog. We selected 243 galaxies at 9 micron and 255 galaxies at 18 micron from the
Ishihara, Daisuke, Malkan, Matthew A., Matsuhara, Hideo, Ohyama, Youichi, Oyabu, Shinki, Takita, Satoshi, Toba, Yoshiki, Wada, Takehiko, Yamauchi, Chisato   +8 more
core   +1 more source

PHYSICAL PROPERTIES OF EMISSION-LINE GALAXIES AT z ∼ 2 FROM NEAR-INFRARED SPECTROSCOPY WITH MAGELLAN FIRE [PDF]

, 2014
We present results from near-infrared spectroscopy of 26 emission-line galaxies at z ∼ 2.2 and z ∼ 1.5 obtained with the Folded-port InfraRed Echellette (FIRE) spectrometer on the 6.5 m Magellan Baade telescope.
D. Masters, P. McCarthy, B. Siana, M. Malkan, B. Mobasher, H. Atek, A. Henry, C. Martin, M. Rafelski, N. Hathi, C. Scarlata, N. Ross, A. Bunker, G. Blanc, A. Bedregal, A. Domínguez, J. Colbert, H. Teplitz, A. Dressler   +18 more
semanticscholar   +1 more source

The Origin of Line Emission in Massive z~2.3 Galaxies: Evidence for Cosmic Downsizing of AGN Host Galaxies

, 2007
Using the Gemini Near-InfraRed Spectrograph (GNIRS), we have assembled a complete sample of 20 K-selected galaxies at 2 ...
Bonnet H., Bower R. G., C. Megan Urry, Cattaneo A., Danilo Marchesini, Edward N. Taylor, Elias J. H., Eric Gawiser, Garth D. Illingworth, Gregory Rudnick, Ivo Labbe, Marijn Franx, Mariska Kriek, Natascha M. Forster Schreiber, Paolo Coppi, Paul P. van der Werf, Paulina Lira, Pieter G. van Dokkum, Ryan Quadri   +18 more
core   +1 more source

Spatially Resolved Modeling of Galactic Hα Emission for Galaxy Clustering

The Astrophysical Journal
Near-infrared spectroscopic surveys target high-redshift emission-line galaxies (ELGs) to probe cosmological scenarios. Understanding the clustering properties of ELGs is essential to derive optimal constraints.
Ivan Rapoport, Vincent Desjacques, Gabriele Parimbelli, Ehud Behar, Martin Crocce   +4 more
doaj   +1 more source

Two extremely metal-poor emission-line galaxies in the Sloan Digital Sky Survey

, 2006
We present spectroscopic observations with the 3.6m ESO telescope of two emission-line galaxies, J2104-0035 and J0113+0052, selected from the Data Release 4 (DR4) of the Sloan Digital Sky Survey (SDSS).
Anderson, Guseva, Izotov, Izotov, Izotov, Izotov, Izotov, Izotov, Izotov, Izotov, K. J. Fricke, Kniazev, Kniazev, N. G. Guseva, P. Papaderos, Pustilnik, Sargent, T. X. Thuan, Thuan, Thuan, Whitford, Y. I. Izotov   +21 more
core   +1 more source

LBT observations of compact star-forming galaxies with extremely high [O III]/[O II] flux ratios: He I emission-line ratios as diagnostics of Lyman continuum leakage [PDF]

, 2017
We present Large Binocular Telescope spectrophotometric observations of five low-redshift ...
Y. Izotov, T. Thuan, N. A. Observatory, Ukrainian National Academy of Sciences, Kyiv, Ukraine, A. Department, U. Virginia, Charlottesville, Usa   +9 more
semanticscholar   +1 more source

EMISSION-LINE OBJECTS FROM A PRELIMINARY UKST OBJECTIVE PRISM SURVEY [PDF]

Journal of Sciences, Islamic Republic of Iran, 1991
A visual search has been made of four fields using United Kingdom 1.2m Schmidt Objective Prism plates with a reciprocal dispersion of 1 180 A/mm at HP. Such plate material is ideally suited to searches for emission-line galaxies.
doaj