Results 11 to 20 of about 4,678,333 (310)

The 2dF Galaxy Redshift Survey: spectra and redshifts [PDF]

Monthly Notices of the Royal Astronomical Society, 2001
The 2dF Galaxy Redshift Survey (2dFGRS) is designed to measure redshifts for approximately 250 000 galaxies. This paper describes the survey design, the spectroscopic observations, the redshift measurements and the survey data base. The 2dFGRS uses the 2dF multifibre spectrograph on the Anglo-Australian Telescope, which is capable of observing 400 ...
Colless, Matthew, Dalton, Gavin, Maddox, Steve, Sutherland, Will, Norberg, Peder, Cole, Shaun, Bland-Hawthorn, Joss, Bridges, Terry, Cannon, Russell, Collins, Chris, Couch, Warrick, Cross, Nicholas, Deeley, Kathryn, De Propris, Roberto, Driver, Simon P., Efstathiou, George, Ellis, Richard S., Frenk, Carlos S., Glazebrook, Karl, Jackson, Carole, Lahav, Ofer, Lewis, Ian, Lumsden, Stuart, Madgwick, Darren, Peacock, John A., Peterson, Bruce A., Price, Ian, Seaborne, Mark, Taylor, Keith, 2dFGRS Team   +29 more
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Target Selection and Validation of DESI Luminous Red Galaxies

The Astronomical Journal, 2023
The Dark Energy Spectroscopic Instrument (DESI) is carrying out a five-year survey that aims to measure the redshifts of tens of millions of galaxies and quasars, including 8 million luminous red galaxies (LRGs) in the redshift range 0.4 < z ≲ 1.0.
Rongpu Zhou, Biprateep Dey, Jeffrey A. Newman, Daniel J. Eisenstein, K. Dawson, S. Bailey, A. Berti, J. Guy, Ting-Wen Lan, H. Zou, J. Aguilar, S. Ahlen, Shadab Alam, D. Brooks, A. de la Macorra, A. Dey, G. Dhungana, K. Fanning, A. Font-Ribera, S. Gontcho A. Gontcho, K. Honscheid, Mustapha Ishak, T. Kisner, A. Kovács, A. Kremin, M. Landriau, Michael E. Levi, C. Magneville, Marc Manera, P. Martini, Aaron M. Meisner, R. Miquel, J. Moustakas, Adam D. Myers, Jundan Nie, N. Palanque-Delabrouille, W. J. Percival, C. Poppett, F. Prada, A. Raichoor, A. J. Ross, E. Schlafly, D. Schlegel, M. Schubnell, Gregory Tarlé, B. A. Weaver, R. H. Wechsler, Christophe Yéche, Zhimin Zhou   +48 more
doaj   +1 more source

Photometric redshifts in the SWIRE Survey [PDF]

Monthly Notices of the Royal Astronomical Society, 2008
22 pages, 23 figures. Accepted for publication in MNRAS. Revised 28/2/08.
Rowan-Robinson, Michael, Babbedge, Tom, Oliver, Seb, Trichas, Markos, Berta, Stefano, Lonsdale, Carol, Smith, Gene, Shupe, David, Surace, Jason, Arnouts, Stephane, Ilbert, Olivier, Le Févre, Olivier, Afonso-Luis, Alejandro, Perez-Fournon, Ismael, Hatziminaoglou, Evanthia, Polletta, Mari, Farrah, Duncan, Vaccari, Mattia   +17 more
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Redshift Survey of 12 Moderate-redshift Clusters

Research Notes of the AAS, 2022
Abstract We conducted a redshift survey of 12 X-ray selected clusters in the redshift range z = 0.35–0.50 with MMT/Hectospec. The redshift surveys confirm that these clusters are massive systems. There are no massive groups or clusters projected along the line of sight that might contaminate the observed cluster X-ray properties ...
Kenneth J. Rines, Margaret J. Geller
openaire   +1 more source

Beyond the plane-parallel approximation for redshift surveys [PDF]

, 2017
Author(s): Castorina, E; White, M | Abstract: © 2018 The Author(s) Published by Oxford University Press on behalf of the Royal Astronomical Society.
E. Castorina, M. White
semanticscholar   +1 more source

Hydra — Centaurus: A Redshift Survey [PDF]

Symposium - International Astronomical Union, 1988
The survey consists of 2 samples : SAMPLE A, 85% complete to B(T) = 14.0 in the region between 10 and 14 Hours in R.A. and between −20 and −50 degrees in DEC., SAMPLE B, complete to B(0) = 14.5 in two regions one between R.A. 13 and 14 hours, DEC between −25 and −33, the other between 11 and 12 hours, DEC from −33 to −27.
G Chincarini, L da Costa, A.P. Fairall, P Pellegrini, G Vettolani, C Willmer   +5 more
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A Redshift Survey of IRAS Galaxies [PDF]

Symposium - International Astronomical Union, 1988
We have completed a redshift survey of approximately 2200 IRAS galaxies, flux limited at 60μ. The survey covers 76% of the sky and has a characteristic depth of ≈ 6000 km s−1, making it ideal for large scale structure studies requiring whole sky coverage.
Michael A. Strauss, Marc Davis
openaire   +1 more source

Deconstructing the neutrino mass constraint from galaxy redshift surveys [PDF]

, 2017
The total mass of neutrinos can be constrained in a number of ways using galaxy redshift surveys. Massive neutrinos modify the expansion rate of the Universe, which can be measured using baryon acoustic oscillations (BAOs) or the Alcock-Paczynski (AP ...
A. Boyle, E. Komatsu
semanticscholar   +1 more source

Forward Modeling of Galaxy Populations for Cosmological Redshift Distribution Inference

The Astrophysical Journal Supplement Series, 2023
We present a forward-modeling framework for estimating galaxy redshift distributions from photometric surveys. Our forward model is composed of: a detailed population model describing the intrinsic distribution of the physical characteristics of galaxies,
Justin Alsing, Hiranya Peiris, Daniel Mortlock, Joel Leja, Boris Leistedt   +4 more
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The Redshift Distribution of the TOUGH Survey [PDF]

EAS Publications Series, 2013
We present the redshift results from a Very Large Telescope (VLT) program aimed at optimizing the legacy value of the Swift mission: to characterize a homogeneous, X-ray selected, sample of 69 GRB host galaxies. Fifteen new redshifts have been secured, resulting in a 77% (53/69) redshift completion, making the survey the most comprehensive in terms of
Jakobsson, P., Hjorth, J., Malesani, D., Fynbo, J. P U, Tanvir, N. R., Milvang-Jensen, B., Krühler, T.   +6 more
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