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J/MNRAS/279/595 Blue compact dwarf galaxies in Virgo (Drinkwater+ 1996)
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Blue compact dwarf galaxies and new velocities in Virgo.
Drinkwater M.J., Currie M.J., Young C.K., Hardy E., Yearsley J.M.
<Mon. Not. R. Astron. Soc. 279, 595 (1996)>
=1996MNRAS.279..595D (SIMBAD/NED BibCode)
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ADC_Keywords: Clusters, galaxy ; Radial velocities
Keywords: galaxies: clusters: general - galaxies: clusters: individual: Virgo -
galaxies: compact - galaxies: distance and redshifts -
galaxies: formation
Abstract:
We present new spectral observations of 303 galaxies brighter than
B_J_=17.6 in the central 30deg^2^ of the Virgo cluster field. The
galaxies were selected from two overlapping samples designed for a
search for blue compact dwarf (BDC) galaxies and for a more general
study of Virgo dwarf elliptical (dE) galaxies. Many of these galaxies
were designated "background" (i.e., not members of the Virgo cluster)
on morphological grounds by Binggeli, Sandage & Tammann in their Virgo
Cluster Catalog (VCC, 1985AJ.....90.1681B). Our principal aim was to
measure radial velocities of these galaxies in order to determine
which were members of the cluster, looking in particular for any
cluster members previously misclassified as background galaxies.
Objects:
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RA (2000) DE Designation(s)
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12 30 +13.2 Virgo cluster = H 1228+125
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File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table9 68 369 Combined sample of blue compact dwarf (BCD)
candidates and other galaxies observed
table9.ps 72 12351 PostScript version of table9
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Byte-by-byte Description of file: table9
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Bytes Format Units Label Explanations
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1- 3 I3 --- No Sequential number
5- 6 I2 h RAh Right ascension (B1950)
8- 9 I2 min RAm Right ascension (B1950)
11- 15 F5.2 s RAs Right ascension (B1950)
17- 18 I2 deg DEd Declination (B1950)
20- 21 I2 arcmin DEm Declination (B1950)
23- 26 F4.1 arcsec DEs Declination (B1950)
28- 31 F4.1 mag Bjmag B_J_ magnitude
33 I1 --- BCD [0/2] BCD (1)
35 I1 --- Y [0/1] Presence in dE sample (0=no, 1=yes)
37- 40 I4 --- VPC VPC number (Young & Currie, 1995MNRAS.273.1141Y)
42- 45 I4 --- VCC VCC number (Binggelli et al., 1985AJ.....90.1681B)
47- 48 A2 --- Run Run number
50- 54 F5.2 --- Nfit ? Number of emission lines fitted
55 A1 --- n_R [*] *: star+galaxy, no R or Nfit data
56 I1 --- R ? Tonry-Davis (1979AJ.....84.1511T) coefficient
58- 62 I5 km/s HV ? Heliocentric-corrected velocity
63 A1 --- n_HV [*] *: star+galaxy, no data
64- 66 I3 km/s e_HV ? rms uncertainty on HV
67 A1 --- n_e_HV [*] *: star+galaxy, no data
68 A1 --- Com [y?S] Comment (2)
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Note (1): B=1 if B_J_-R_C_<1.1, =2 if redder
Note (2): y: velocity identification reliable
?: velocity identification doubtful
S: star
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Acknowledgements:
It is a pleasure to thank Michael Drinkwater <mjd@aaocbn.aao.gov.au>
who supplied the tables in November 1996.
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(End) Francois Ochsenbein [CDS] 27-Nov-1996