J/ApJS/137/279 Spectroscopic Survey in Coma (Mobasher+, 2001)
A photometric and spectroscopic study of dwarf and giant galaxies in the
Coma cluster. II. Spectroscopic observations.
Mobasher B., Bridges T.J., Carter D., Poggianti B.M., Komiyama Y.,
Kashikawa N., Doi M., Iye M., Okamura S., Sekiguchi M., Shimasaku K.,
Yagi M., Yasuda N.
<Astrophys. J. Suppl. Ser. 137, 279 (2001)>
=2001ApJS..137..279M 2001ApJS..137..279M (SIMBAD/NED BibCode)
ADC_Keywords: Clusters, galaxy ; Photometry ; Redshifts
Keywords: galaxies: clusters: general - galaxies: clusters: individual (Coma) -
galaxies: distances and redshifts - galaxies: kinematics and dynamics
Abstract:
This is the second paper in a series studying the photometric and
spectroscopic properties of galaxies of different luminosities in the
Coma Cluster. We present the sample selection, spectroscopic
observations, and completeness functions. To study the spectral
properties of galaxies as a function of their local environment, two
fields were selected for spectroscopic observations to cover both the
core (Coma 1) and outskirts (i.e., southwest of the core and centered
on NGC 4839; Coma 3) of the cluster. To maximize the efficiency of
spectroscopic observations, two subsamples were defined, consisting of
"bright" and "faint" galaxies, both drawn from magnitude-limited
parent samples. Medium-resolution spectroscopy (6-9Å) was then
carried out for a total of 490 galaxies in both fields (302 in Coma 1
and 188 in Coma 3), using the WYFFOS multifiber spectrograph on the
William Herschel Telescope. The galaxies cover a range of 12<R<20,
corresponding to -23<MR←15 (H0=65km/s/Mpc). The redshifts for
these galaxies are measured with an accuracy of 75km/s.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table3.dat 85 490 List of the galaxies in the spectroscopic survey
in Coma1 (C1) and Coma3 (C3)
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See also:
VII/42 : GMP catalogue: galaxies in the Coma cluster (Godwin+ 1983)
VII/159 : Catalogue of galaxies towards the Coma Supercluster (Slezak+ 1988)
J/A+A/296/643 : Low Surface Brightness galaxies in Coma (Karachentsev+ 1995)
J/A+A/303/661 : Star-forming galaxies in the Coma Cluster (Donas+, 1995)
J/A+AS/105/385 : Radio observations of Coma cluster I (Kim+ 1994)
J/A+AS/105/403 : Radio observations of Coma cluster II (Kim 1994)
J/A+AS/111/265 : Velocities in Coma cluster (Biviano+ 1995)
J/A+AS/122/409 : Photometric catalogue of Coma (Lobo+, 1997)
J/A+AS/141/449 : Coma cluster early-type galaxies (Mehlert+, 2000)
J/AJ/121/2331 : SDSS redshifts in the Coma cluster (Castander+, 2001)
J/ApJS/97/77 : Catalog of Coma Cluster Galaxies (Doi+ 1995)
Byte-by-byte Description of file: table3.dat
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Bytes Format Units Label Explanations
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1- 5 A5 --- Clust Field (3)
7- 12 I6 --- [MBC2001] Galaxy identification number
14- 15 I2 h RAh Hour of Right Ascension (J2000)
17- 18 I2 min RAm Minute of Right Ascension (J2000)
20- 24 F5.2 s RAs Second of Right Ascension (J2000)
25 A1 --- DE- Sign of Declination (J2000)
26- 27 I2 deg DEd Degree of Declination (J2000)
29- 30 I2 arcmin DEm Arcminute of Declination (J2000)
32- 36 F5.2 arcsec DEs Arcsecond of Declination (J2000)
38- 42 F5.3 deg Dis Distance from the cluster center (1)
44- 49 F6.3 mag Rmag The R-band Kron magnitude (2)
51- 55 F5.3 mag B-R The Kron (B-R) color magnitude
57- 62 F6.3 arcsec Rad The Kron radius
64- 68 F5.2 mag/arcsec2 SBmean The mean R band surface brightness
70- 74 F5.2 mag/arcsec2 SBeff The effective R band surface brightness
76- 81 F6.4 --- z Redshift
83- 84 A2 --- Memb [C13 ] Cluster membership comment
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Note (1): Cluster center taken to be at RA = 12:59:42.8, DE = 27:58:14 (J2000).
Note (2): Measured over a circular aperture with a diameter of 3 Kron radii.
Note (3): The fields are centered at:
Coma1: 12 59 45.17 +27 57 53.1 (center)
Coma3: 12 57 28.48 +27 08 08.5 (NGC 4839)
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History:
From electronic version of the journal
References:
Komiyama et al., Paper I in press
Poggianti et al., Paper III 2001ApJ...562..689P 2001ApJ...562..689P
(End) Greg Schwarz [AAS], Patricia Bauer [CDS] 14-Jan-2002