EROs found behind lensing clusters
نویسندگان
چکیده
منابع مشابه
EROs found behind lensing clusters
Aims. We study the properties and nature of extremely red galaxies (ERO, R−K ≥5.6) found behind two lensing clusters and compare them with other known galaxy populations. Methods. New HST/ACS observations, Spitzer IRAC and MIPS, and Chandra/ACIS observations of the two lensing clusters Abell 1835 and AC114 contemplate our earlier optical and near-IR observations (Richard et al. 2006) and have b...
متن کاملEROs found behind lensing clusters II. Empirical properties, classification, and SED modelling based on multi-wavelength observations
Aims. We study the properties and nature of extremely red galaxies (ERO, R−K ≥ 5.6) found behind two lensing clusters and compare them with other known galaxy populations. Methods. New HST/ACS, Spitzer (IRAC and MIPS), and Chandra/ACIS observations of the two lensing clusters Abell 1835 and AC114 have been obtained, combined with our earlier optical and near-IR observations and used to study ER...
متن کاملfrom z ∼ 6 – 10 galaxy candidates found behind gravitational lensing clusters
We summarise the current status of our project to identify and study z ∼ 6–10 galaxies thanks to strong gravitational lensing. Building on the detailed work from Richard et al. (2006), we present results from new followup observations (imaging) undertaken with ACS/HST and the Spitzer Space Telescope and compare our results with findings from the Hubble Ultra-Deep Field (UDF). These new observat...
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We conduct a search for z & 7 dropout galaxies behind 11 massive lensing clusters using 21 arcmin of deep HST NICMOS, ACS, and WFPC2 image data. In total, over this entire area, we find only one robust z ∼ 7 z-dropout candidate (previously reported around Abell 1689). Four less robust zdropout and J-dropout candidates are also found. The nature of the four weaker candidates could not be precise...
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Full-sky microwave surveys like the upcoming Planck satellite mission will detect of order 10 4 galaxy clusters through their thermal Sunyaev-Zel'dovich effect. I investigate the properties of the gravitationally lensing subsam-ple of these clusters. The main results are: (1) The combined sample comprises 70% of the complete sample. (2) It is confined to redshifts 0.2 ± 0.1, and to masses (5 ± ...
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ژورنال
عنوان ژورنال: Astronomy & Astrophysics
سال: 2007
ISSN: 0004-6361,1432-0746
DOI: 10.1051/0004-6361:20077591