Results 21 to 30 of about 4,302,843 (380)

The miniJPAS survey: Photometric redshift catalogue [PDF]

Astronomy & Astrophysics, 2021
MiniJPAS is a ∼1 deg2 imaging survey of the AEGIS field in 60 bands, performed to demonstrate the scientific potential of the upcoming Javalambre-Physics of the Accelerating Universe Astrophysical Survey (J-PAS). Full coverage of the 3800–9100 Å range with 54 narrow-band filters, in combination with 6 optical broad-band filters, allows for extremely ...
Hernán-Caballero, A., Varela, J., López-Sanjuan, C., Muniesa, D., Civera, T., Chaves-Montero, J., Díaz-García, L. A., Díaz-García, L. A., Laur, J., Hernández-Monteagudo, C., Abramo, R., Angulo, R., Cristóbal-Hornillos, D., González Delgado, Rosa M., Greisel, N., Orsi, A., Queiroz, C., Sobral, D., Tamm, A., Tempel, E., Vázquez-Ramió, H., Alcaniz, J., Benítez, N., Bonoli, S., Carneiro, S., Cenarro, J., Dupke, Renato, Ederoclite, A., Marín-Franch, A., Mendes de Oliveira, C., Moles, M., Sodré, L., Taylor, K., Cypriano, E. S., Martínez-Solaeche, G.   +34 more
openaire   +4 more sources

Target Selection and Validation of DESI Quasars

The Astrophysical Journal, 2023
The Dark Energy Spectroscopic Instrument (DESI) survey will measure large-scale structures using quasars as direct tracers of dark matter in the redshift range 0.9 < z < 2.1 and using Ly α forests in quasar spectra at z > 2.1.
Edmond Chaussidon, Christophe Yèche, Nathalie Palanque-Delabrouille, David M. Alexander, Jinyi Yang, Steven Ahlen, Stephen Bailey, David Brooks, Zheng Cai, Solène Chabanier, Tamara M. Davis, Kyle Dawson, Axel de laMacorra, Arjun Dey, Biprateep Dey, Sarah Eftekharzadeh, Daniel J. Eisenstein, Kevin Fanning, Andreu Font-Ribera, Enrique Gaztañaga, Satya Gontcho A Gontcho, Alma X. Gonzalez-Morales, Julien Guy, Hiram K. Herrera-Alcantar, Klaus Honscheid, Mustapha Ishak, Linhua Jiang, Stephanie Juneau, Robert Kehoe, Theodore Kisner, Andras Kovács, Anthony Kremin, Ting-Wen Lan, Martin Landriau, Laurent Le Guillou, Michael E. Levi, Christophe Magneville, Paul Martini, Aaron M. Meisner, John Moustakas, Andrea Muñoz-Gutiérrez, Adam D. Myers, Jeffrey A. Newman, Jundan Nie, Will J. Percival, Claire Poppett, Francisco Prada, Anand Raichoor, Corentin Ravoux, Ashley J. Ross, Edward Schlafly, David Schlegel, Ting Tan, Gregory Tarlé, Rongpu Zhou, Zhimin Zhou, Hu Zou   +56 more
doaj   +1 more source

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

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
openaire   +3 more sources

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

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

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
doaj   +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

Cosmology with photometric redshift surveys [PDF]

, 2004
We explore the utility of future photometric redshift imaging surveys for delineating the large-scale structure of the Universe, and assess the resulting constraints on the cosmological model.
Blake, Chris, Bridle, Sarah
core   +5 more sources

A Southern Photometric Quasar Catalog from the Dark Energy Survey Data Release 2

The Astrophysical Journal Supplement Series, 2022
We present a catalog of 1.4 million photometrically selected quasar candidates in the southern hemisphere over the ∼5000 deg ^2 Dark Energy Survey (DES) wide survey area. We combine optical photometry from the DES second data release (DR2) with available
Qian Yang, Yue Shen
doaj   +1 more source