J/AJ/116/2728 I photometry of early-type galaxies (Scodeggio+, 1998)
The universality of the fundamental plane of E and S0 galaxies:
sample definition and I-band photometric data.
Scodeggio M., Giovanelli R., Haynes M.P.
<Astron. J. 116, 2728 (1998)>
=1998AJ....116.2728S 1998AJ....116.2728S (SIMBAD/NED BibCode)
ADC_Keywords: Galaxies, photometry ; Photometry, CCD ; Radial velocities ;
Morphology
Keywords: distance scale - galaxies: distances and redshifts -
galaxies: elliptical and lenticular, cD -
galaxies: fundamental parameters - galaxies: photometry
Abstract:
As part of a project to compare the fundamental plane and Tully-Fisher
distance scales, we present here I-band CCD photometry for 636
early-type galaxies in eight clusters and groups of galaxies. These
are the A262, A1367, Coma (A1656), A2634, Cancer and Pegasus Clusters,
and the NGC 383 and NGC 507 Groups. Sample selection, cluster
properties, and cluster membership assignment criteria are discussed.
We present photometric parameters that are used in the fundamental
plane relation, the effective radius re, and the effective surface
brightness µe, as derived from a r1/4 fit to the observed
radial photometric profile of each galaxy. A comparison with similar
data found in the literature for the Coma Cluster shows that large
systematic uncertainties can be introduced in the measurement of re
and µe by the particular method used to derive those parameters.
However, the particular combination of these two parameters that
enters in the fundamental plane relation is a quantity that can be
measured with high accuracy.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table3.dat 129 636 Measured photometric parameters
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See also:
VII/26 : Uppsala General Catalogue of Galaxies (UGC) (Nilson 1973)
VII/118 : NGC 2000.0 (Sky Publishing, ed. Sinnott 1988)
J/AJ/116/2738 : Spectroscopy of early-type galaxies (Scodeggio+ 1998)
Byte-by-byte Description of file: table3.dat
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Bytes Format Units Label Explanations
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1- 9 A9 --- Name Galaxy name (1)
11- 19 A9 --- NGC/IC NGC or IC (Cat. VII/118) designation
21- 28 A8 --- CGCG CGCG (Cat. VII/49) or Dressler (D, 1980,
Cat. VII/174) designation
30- 31 I2 h RAh Right ascension (B1950.0)
33- 34 I2 min RAm Right ascension (B1950.0)
36- 39 F4.1 s RAs Right ascension (B1950.0)
41 A1 --- DE- Declination sign (B1950.0)
42- 43 I2 deg DEd Declination (B1950.0)
45- 46 I2 arcmin DEm Declination (B1950.0)
48- 49 I2 arcsec DEs Declination (B1950.0)
51- 52 I2 --- MType RC3 (VII/155) morphological type code
54- 58 I5 km/s HRV ? Heliocentric radial velocity
60- 65 F6.2 arcsec RadE Measured effective radius
67- 72 F6.2 arcsec RadEC Effective radius corrected for
seeing effects
74- 78 F5.2 arcsec e_RadE rms uncertainty on effective radius
80- 84 F5.2 kpc Rad Corrected metric effective radius
86- 90 F5.2 mag/arcsec+2 SuBrE Measured effective surface brightness
in I band
92- 96 F5.2 mag/arcsec+2 SuBrEC Corrected effective surface brightness
in I band
98-101 F4.2 mag/arcsec+2 e_SuBrE rms uncertainty on SuBre
103-107 F5.2 mag Imag Measured apparent I-band magnitude
109-113 F5.2 mag ImagC Corrected apparent I-band magnitude
115-118 F4.2 mag e_Imag rms uncertainty on Imag
120-125 F6.2 mag IMAG Absolute I magnitude
127-129 I3 --- Q Quality codes (2)
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Note (1): UGC (Cat. VII/26) or A (Giovanelli & Haynes private galaxy catalog,
AGC, Arecibo General Catalog) designation
Individual notes:
A111067, UGC 688, A110044, A111068: within the halo of the galaxy
UGC 689
A110055: bright companion nearby (UGC 700)
UGC 735: faint outer ring
Note (2): First digit: photometric code:
1: observation obtained in photometric conditions,
uncertainty in the zero-point determination less than 0.03mag
2: observation obtained in photometric conditions,
uncertainty in the zero-point determination 0.03-0.05mag
6: observation obtained in nonphotometric conditions,
uncertainty in the zero-point determination less than 0.03mag
7: observation obtained in nonphotometric conditions,
uncertainty in the zero-point determination 0.03-0.06mag
Second digit: image quality code:
0: the image is OK
1: a small amount of contamination from nearby stars or other
galaxies
2: a significant amount of contamination from nearby stars or other
galaxies
3: iterative subtraction of the contaminating object required
4: flat-fielding of substandard quality due to scattered light from
a nearby bright star
Thrid digit: profile code:
1: r1/4 fit good at all radii
2: r1/4 fit acceptable at all radii
3: r1/4 fit good only in the core of the galaxy
4: r1/4 fit does not provide an acceptable description of the
observed photometric profile
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History: * 26-Mar-1999: Original version from AJ electronic version
* 14-Jan-2009: A100055 corrected into A110055
(End) James Marcout, Patricia Bauer [CDS] 04-Feb-1999