J/MNRAS/390/1133 Anisotropic distribution of satellite galaxies (Bailin+, 2008)
The anisotropic distribution of satellite galaxies.
Bailin J., Power C., Norberg P., Zaritsky D., Gibson B.K.
<Mon. Not. R. Astron. Soc., 390, 1133-1156 (2008)>
=2008MNRAS.390.1133B 2008MNRAS.390.1133B
ADC_Keywords: Clusters, galaxy ; Morphology ; Redshifts
Keywords: galaxies: clusters: general - galaxies: dwarf - galaxies: formation -
galaxies: haloes - galaxies: structure - dark matter
Abstract:
We identify satellites of isolated galaxies in the Sloan Digital Sky
Survey and examine their angular distribution. Using mock catalogues
generated from cosmological N-body simulations, we demonstrate that
the selection criteria used to select isolated galaxies and their
satellites in large galaxy redshift surveys must be very strict in
order to correctly identify systems in which the primary galaxy
dominates its environment. We demonstrate that the criteria used in
many previous studies instead select predominantly group members. We
refine a set of selection criteria for which the group contamination
is estimated to be less than 7 per cent and present a catalogue of the
resulting sample.
Description:
Our sample is drawn from the SDSS Data Release 6 (DR6).
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table4.dat 111 1588 Data for primary and satellite galaxies
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See also:
http://www.sdss.org/ : SDSS Home Page
Byte-by-byte Description of file: table4.dat
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Bytes Format Units Label Explanations
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1- 4 A4 --- --- [SDSS]
6- 24 A19 --- PName Primary name, SDSS JHHMMSS.ss+DDMMSS.s
26- 29 A4 --- --- [SDSS]
31- 49 A19 --- SName Satellite name, SDSS JHHMMSS.ss+DDMMSS.s
51- 52 I2 h RAh Right ascension (J2000) (1)
54- 55 I2 min RAm Right ascension (J2000) (1)
57- 60 F4.1 s RAs Right ascension (J2000) (1)
62 A1 --- DE- Declination sign (J2000) (1)
63- 64 I2 deg DEd Declination (J2000) (1)
66- 67 I2 arcmin DEm Declination (J2000) (1)
69- 72 F4.1 arcsec DEs Declination (J2000) (1)
74- 80 F7.5 --- z Redshift (1)
82- 87 F6.2 mag MAG Absolute dereddened 0.1Mr-5logh magnitude (1)
89- 93 F5.1 deg PA ?=- Isophotal position angle (1)
95- 98 F4.2 --- b/a ?=- Ratio of isophotal minor and major axes (1)
100-105 F6.1 deg PAlss ?=- Derived position angle of the LSS axis (1)
107 A1 --- Cl [EIL] Classification of galaxy (1) (2)
109 A1 --- Disc? [Y/N] Disc sample, for Primary galaxy only (3)
111 A1 --- LSS? [Y/N] LSS sample, for Primary galaxy only (4)
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Note (1): When no satellite name, values for the Primary galaxy, else
values for the satellite galaxy.
Note (2): Based on the classification scheme of Bailin & Harris
(2008ApJ...681..225B 2008ApJ...681..225B) as follows:
E = early-type
I = intermediate-type
L = late-type
Note (3): Whether the system passes all quality cuts required to be
included in the sample for the purposes of measuring the anisotropy
with respect to the primary
Note (4): Whether the system passes all quality cuts required to be
included in the sample for the purposes of measuring the anisotropy
with respect to the LSS (Large Scale Structure).
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History:
From electronic version of the journal
(End) Patricia Vannier [CDS] 17-May-2010