J/AJ/119/32 Survey of galaxies within nearby voids. II (Grogin+, 2000)
An imaging and spectroscopic survey of galaxies within prominent nearby
voids. II. Morphologies, star formation, and faint companions.
Grogin N.A., Geller M.J.
<Astron. J. 119, 32 (2000)>
=2000AJ....119...32G 2000AJ....119...32G
ADC_Keywords: Galaxies, photometry ; Surveys
Keywords: galaxies: distances and redshifts - galaxies: fundamental
parameters - galaxies: photometry - galaxies: statistics -
large-scale structure of universe
Abstract:
We analyze the optical properties of ∼300 galaxies within and around
three prominent voids of the Center for Astrophysics Redshift Survey.
We determine CCD morphologies and Hα equivalent widths from our
imaging and spectroscopic survey. We also describe a redshift survey
of 250 neighboring galaxies in the imaging survey fields. We assess
the morphology-density relation, EW(Hα)-density relation, and
the effects of nearby companions for galaxies in low-density
environments selected with a smoothed large-scale (5 h-1 Mpc) galaxy
number density n.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table1.dat 84 296 Imaging and spectroscopic survey targets and
properties
table2.dat 86 250 Neighbors to primary galaxies in this study
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See also:
VII/49 : Galaxies and Clusters of Galaxies (CGCG) (Zwicky, 1968)
VII/190 : Zwicky Galaxy Catalog (Zwicky+ 1968)
J/PASP/111/438 : Updated Zwicky catalog (UZC) (Falco+, 1999)
J/AJ/118/2561 : Survey of galaxies within prominent nearby voids
(Grogin+, 1999)
Byte-by-byte Description of file: table1.dat
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Bytes Format Units Label Explanations
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1- 8 A8 --- Survey Survey that galaxy was chosen from (1)
10- 24 A15 --- Name Galaxy name
26- 27 I2 h RAh Right ascension (B1950)
29- 30 I2 min RAm Right ascension (B1950)
32- 36 F5.2 s RAs Right ascension (B1950)
38 A1 --- DE- Declination (B1950)
39- 40 I2 deg DEd Declination (B1950)
42- 43 I2 arcmin DEm Declination (B1950)
45- 48 F4.1 arcsec DEs Declination (B1950)
50- 54 I5 km/s cz Redshift corrected to the local standard
56- 59 F4.2 --- Den Smoothed galaxy density (Uncertainty ≤ 0.1)
61- 65 F5.2 mag Rmag ? R band magnitude from SExtractor
BEST_MAG (see section 2.2)
67- 68 I2 --- Morph B band CCD morphology (2)
72- 76 F5.1 0.1nm EqW ? Equivalent width of Hα
80- 83 F4.1 0.1nm e_EqW ? Uncertainty in EqW
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Note (1):
CfA2 = The Center for Astrophysics Redshift Survey of galaxies in the
Zwicky Catalog (Zwicky et al. 1961-1968)
15R = The 15R survey of de Lapparent et al. (1986ApJ...302L...1D 1986ApJ...302L...1D)
Century = The Century survey of Kurtz et al. (1985AJ.....90.1665K 1985AJ.....90.1665K)
Note (2): Early type galaxies have lower numbers. Both Irr and Pec have
morphologies of 10.
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Byte-by-byte Description of file: table2.dat
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Bytes Format Units Label Explanations
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1- 2 I2 h RAh ? Right ascension (B1950)
4- 5 I2 min RAm ? Right ascension (B1950)
7- 11 F5.2 s RAs ? Right ascension (B1950)
16 A1 --- DE- ? Declination (B1950)
17- 18 I2 deg DEd ? Declination (B1950)
20- 21 I2 arcmin DEm ? Declination (B1950)
23- 26 F4.1 arcsec DEs ? Declination (B1950)
29- 33 I5 km/s cz ? Redshift corrected to the local standard
35- 37 I3 km/s e_cz ? Uncertainty in cz
39- 43 F5.2 mag Rmag ? R band magnitude from SExtractor
BEST_MAG (see section 2.2)
45- 57 A13 --- Name Name of neighbor primary given in table1.dat
59- 62 I4 arcsec Dist Distance between neighbors
64- 68 I5 km/s Delcz ? Difference in redshift (corrected to
the local standard) between neighbors
70- 89 A20 --- Text Comments on object
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History:
From AJ electronic edition
References:
Zwicky, F., Herzog, E., Wild, P., Karpowicz, M., & Kowal, C. T.
1961 - 1968, Catalogue of Galaxies and Clusters of Galaxies
(Pasadena: Caltech)
(End) Greg Schwarz [AAS] 11-Apr-2000