J/AJ/109/517 Photoelectric types of bright galaxies (Buta+ 1995)
Integrated photoelectric magnitudes and color indices of bright galaxies
in the Johnson UBV system.
Buta R., Corwin H.G.Jr., de Vaucouleurs G., de Vaucouleurs A., Longo G.
<Astron. J. 109, 517 (1995)>
=1995AJ....109..517B 1995AJ....109..517B (SIMBAD/NED BibCode)
ADC_Keywords: Galaxies, photometry ; Photometry, classification
Abstract:
The photoelectric total magnitudes and color indices published in the
Third Reference Catalogue of Bright Galaxies (RC3, Cat. VII/155) are
based on an analysis of ∼26000 B, 25000 B-V, and 17000 U-B
multiaperture measurements available up to mid 1987 from nearly 350
sources. This paper provides the full details of the analysis and
estimates of internal and external errors in the parameters. The
derivation of the parameters is based on techniques described by de
Vaucouleurs & Corwin (1977ApJS...33..219D 1977ApJS...33..219D) whereby photoelectric
multiaperture data are fitted by mean Hubble-type-dependent curves
which describe the integral of the B-band flux and the typical B-V and
U-B integrated color gradients. A sophisticated analysis of the
residuals of these measurements from the curves was made to allow for
the random and systematic errors that affect such data. The result is
a homogeneous set of total magnitudes BAT, total colors
(B-V)T and (U-B)T, and effective colors (B-V)e and (U-B)e for
more than 3000 bright galaxies in RC3.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table6 22 1469 Photometric types
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See also:
VII/155 : Third Reference Cat. of Bright Galaxies (RC3) (de Vaucouleurs+ 1991)
Byte-by-byte Description of file: table6
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Bytes Format Units Label Explanations
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1- 12 A12 --- Name Galaxy name as in RC3 (Cat. VII/155)
14- 15 I2 --- Tc Catalogue type
16 A1 --- u_Tc [:?] Uncertainty flag on Tc
18- 19 I2 --- Tp Photometric type
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History: Prepared via OCR at CDS.
(End) James Marcout, Patricia Bauer [CDS] 13-Jun-1997