THE ELEVENTH AND TWELFTH DATA RELEASES OF THE SLOAN DIGITAL SKY SURVEY: FINAL DATA FROM SDSS-III
- S. Alam, F. D. Albareti, Key Laboratory of Optical Astronomy
- Physics
- 5 January 2015
The third generation of the Sloan Digital Sky Survey (SDSS-III) took data from 2008 to 2014 using the original SDSS wide-field imager, the original and an upgraded multi-object fiber-fed optical…
redMaPPer. I. ALGORITHM AND SDSS DR8 CATALOG
- E. Rykoff, E. Rozo, R. Wechsler
- Physics
- 14 March 2013
We describe redMaPPer, a new red sequence cluster finder specifically designed to make optimal use of ongoing and near-future large photometric surveys. The algorithm has multiple attractive…
A SPECTROSCOPICALLY CONFIRMED X-RAY CLUSTER AT z = 1.62 WITH A POSSIBLE COMPANION IN THE SUBARU/XMM-NEWTON DEEP FIELD
- Masayuki Tanaka, A. Finoguenov, Y. Ueda
- Physics
- 21 April 2010
We report on a confirmed galaxy cluster at z = 1.62. We discovered two concentrations of galaxies at z ∼ 1.6 in the Subaru/XMM-Newton deep field based on deep multi-band photometric data. We made a…
THE CHANDRA COSMOS SURVEY. I. OVERVIEW AND POINT SOURCE CATALOG
- M. Elvis, F. Civano, M. Volonteri
- Physics
- 11 March 2009
The Chandra COSMOS Survey (C-COSMOS) is a large, 1.8 Ms, Chandra program that has imaged the central 0.5 deg2 of the COSMOS field (centered at 10h, +02o) with an effective exposure of ∼160 ks, and an…
zCOSMOS: A Large VLT/VIMOS Redshift Survey Covering 0 < z < 3 in the COSMOS Field
zCOSMOS is a large-redshift survey that is being undertaken in the COSMOS field using 600 hr of observation with the VIMOS spectrograph on the 8 m VLT. The survey is designed to characterize the…
A mature cluster with X-ray emission at z = 2.07
- R. Gobat, E. Daddi, M. Mignoli
- Physics
- 8 November 2010
We report evidence of a fully established galaxy cluster at z = 2.07, consisting of a ∼20σ overdensity of red, compact spheroidal galaxies spatially coinciding with extended X-ray emission detected…
The Fourteenth Data Release of the Sloan Digital Sky Survey: First Spectroscopic Data from the Extended Baryon Oscillation Spectroscopic Survey and from the Second Phase of the Apache Point…
- Bela Abolfathi, D. Aguado, H. Zou
- PhysicsAstrophysical Journal Supplement Series
- 28 July 2017
The fourth generation of the Sloan Digital Sky Survey (SDSS-IV) has been in operation since 2014 July. This paper describes the second data release from this phase, and the 14th from SDSS overall…
Sloan Digital Sky Survey IV: Mapping the Milky Way, Nearby Galaxies, and the Distant Universe
- M. Blanton, M. Bershady, H. Zou
- Physics
- 28 February 2017
We describe the Sloan Digital Sky Survey IV (SDSS-IV), a project encompassing three major spectroscopic programs. The Apache Point Observatory Galactic Evolution Experiment 2 (APOGEE-2) is observing…
STELLAR AND TOTAL BARYON MASS FRACTIONS IN GROUPS AND CLUSTERS SINCE REDSHIFT 1
- S. Giodini, D. Pierini, D. Thompson
- Physics
- 2 April 2009
We investigate if the discrepancy between estimates of the total baryon mass fraction obtained from observations of the cosmic microwave background (CMB) and of galaxy groups/clusters persists when a…
The Birmingham-CfA cluster scaling project - III. Entropy and similarity in galaxy systems
- T. Ponman, A. Sanderson, A. Finoguenov
- Physics
- 2 April 2003
We examine profiles and scaling properties of the entropy of the intergalactic gas in a sample of 66 virialized systems, ranging in mass from single elliptical galaxies to rich clusters, for which we…
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