J/A+A/560/A78 B-Band catalog of sources in Abell 3376 (Durret+, 2013)
The merging cluster of galaxies Abell 3376: an optical view.
Durret F., Perrot C., Lima Neto G.B., Adami C., Bertin E., Bagchi J.
<Astron. Astrophys. 560, A78 (2013)>
=2013A&A...560A..78D 2013A&A...560A..78D
ADC_Keywords: Clusters, galaxy ; Galaxies, photometry ; Models
Keywords: galaxies: clusters: individual: Abell 3376 -
galaxies: luminosity function, mass function
Abstract:
The cluster Abell 3376 is a merging cluster of galaxies at redshift
z=0.046. It is famous mostly for its giant radio arcs, and shows an
elongated and highly substructured X-ray emission, but has not been
analysed in detail at optical wavelengths.
To improve our understanding of the effects of the major cluster
merger on the galaxy properties, we analyse the galaxy luminosity
function (GLF) in the B band in several regions as well as the
dynamical properties of the substructures.
Description:
The catalog has 28810 galaxies up to magnitude B_MODEL≤25mag. It
contains the following columns: galaxy number, right ascension,
declination, B_AUTO magnitude and its error, B_MODEL magnitude and its
error, SPREAD_MODEL and its error. Magnitudes are in the Vega system
and no extinction correction was applied.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
catalog.dat 70 28810 Catalog of sources in the region of A3376
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Byte-by-byte Description of file: catalog.dat
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Bytes Format Units Label Explanations
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1- 5 I5 --- Seq [1/34642] Sequential number
7- 16 F10.7 deg RAdeg Right ascension in decimal degrees (J2000)
18- 28 F11.7 deg DEdeg Declination in decimal degrees (J2000)
30- 35 F6.3 mag Bmag B band MAG_AUTO from SExtractor
37- 42 F6.3 mag e_Bmag B band Error on MAG_AUTO from SExtractor
44- 49 F6.3 mag BmagM ? B band MAG_MODEL from SExtractor
51- 56 F6.3 mag e_BmagM ?=99.999 Error on MAG_MODEL from SExtractor
58- 63 F6.3 --- Spread [-0.02/2.9] Star/galaxy classification with
SPREAD_MODEL from SExtractor (0=star) (1)
65- 70 F6.3 --- e_Spread error on SPREAD_MODEL from SExtractor
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Note (1): New star-galaxy classifier, SPREAD_MODEL, where stars are near 0
and galaxies have positive values.
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Acknowledgements:
Florence Durret, durret(at)iap.fr
(End) Patricia Vannier [CDS] 30-Oct-2013