Results 21 to 30 of about 64,304 (283)
Completeness in Photometric and Spectroscopic Searches for Clusters [PDF]
, 2001 We investigate, using simulated galaxy catalogues, the completeness of searches for massive clusters of galaxies in redshift surveys or imaging surveys with photometric redshift estimates, i.e. what fraction of clusters (M>10^14/h Msun) are found in such
Blanchard A. +9 more
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The 2Mass Redshift Survey [PDF]
Highlights of Astronomy, 1998 With the current convergence of determinations of the Hubble Constant (e.g. The Extragalactic Distance Scale, 1997, Livio, Donahue and Panagia, eds.) to values within ±25% rather than a factor of two, and the clear possibility of determining q0 using high redshift supernovae (Garnavich et al.
J. Huchra +6 more
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On estimating redshift and luminosity distributions in photometric redshift surveys [PDF]
, 2007 The luminosity functions of galaxies and quasars provide invaluable information about galaxy and quasar formation. Estimating the luminosity function from magnitude limited samples is relatively straightforward, provided that the distances to the objects
Sheth, Ravi K.
core +3 more sources
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 +17 more
openaire +6 more sources
Spectral Templates from Multicolor Redshift Surveys [PDF]
, 1999 Understanding how the physical properties of galaxies (e.g. their spectral type or age) evolve as a function of redshift relies on having an accurate representation of galaxy spectral energy distributions.
Alexander S. Szalay +9 more
core +4 more sources
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
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Bayesian inference from photometric redshift surveys [PDF]
, 2011 We show how to enhance the redshift accuracy of surveys consisting of tracers with highly uncertain positions along the line of sight. Photometric surveys with redshift uncertainty delta_z ~ 0.03 can yield final redshift uncertainties of delta_z_f ~ 0 ...
Jasche, Jens, Wandelt, Benjamin D.
core +2 more sources
Optical Redshift Surveys [PDF]
Highlights of Astronomy, 1992 Redshift surveys of galaxies have been over the past decade the major source of information for studies of the large-scale structure of the Universe. Following the completion of the original CfA Redshift Survey, several groups have joined the endeavor, probing different regions of the sky to different depths in a remarkable long-term effort to study ...
openaire +1 more source
The CNOC2 field galaxy redshift survey [PDF]
Philosophical Transactions of the Royal Society of London. Series A: Mathematical, Physical and Engineering Sciences, 1999 The CNOC2 field galaxy redshift survey is designed to provide measurements of the evolution of galaxies and their clustering over the redshift range 0 to 0.7. The sample is spread over four sky patches with a total area of about 1.5 square degrees. Here we report preliminary results based on two of the sky patches, and the redshift range of 0.15 to 0 ...
Carlberg, R. G. +11 more
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High redshift galaxy surveys [PDF]
SPIE Proceedings, 2008 Plenary talk given on 25 June at the SPIE 2008 symposium on "Astronomical Instrumentation" in Marseiile, 10 ...
openaire +2 more sources