J/AJ/110/1083 Photometry of Zwicky Galaxies (Takamiya+ 1995)
Photoelectric photometry of Zwicky Galaxies
Takamiya M., Kron R.G., Kron G.E.
<Astron. J. 110, 1083 (1995)>
=1995AJ....110.1083T 1995AJ....110.1083T
ADC_Keywords: Galaxies, photometry
Abstract:
Multiaperture photoelectric measurements in the B and V bands are
presented for 601 galaxies in Volumes I, II, and V of Zwicky's
catalogue. Large aperture observations were made in the 1960's with
the Lick 3 m telescope and the USNO 1 m telescope. Systematics in
Zwicky's magnitude system are investigated as a function of magnitude
and direction in the sky. The photoelectric sample is argued to be
representative of galaxies in Zwicky's catalogue at B ∼ 15. A strong
systematic error in Zwicky's magnitudes is apparent in Volume I
fainter than m_z = 15.0. The B-V color distribution is discussed.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table1.dat 76 942 The photoelectric data
table1.tex 171 958 AASTeX version of table1.dat
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Byte-by-byte Description of file: table1.dat
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Bytes Format Units Label Explanations
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1- 2 I2 h RAh Right ascension 1950 from CGCG VII/4
3- 7 F5.1 min RAm Right ascension 1950 from CGCG
9 A1 --- DE- Declination sign from CGCG
10-11 I2 deg DEd Declination 1950 from CGCG
12-14 I3 arcmin DEm Declination 1950 from CGCG
15-20 F6.1 mag mz Magnitude listed in CGCG VII/4
23-30 A8 --- Name NGC, IC or UGC number
31-37 F7.2 mag Vmag V magnitude measured within aperture radius
38-39 A2 --- n_Vmag [a-e ] Note flags for Vmag (1)
40-45 F6.2 mag Bmag B magnitude measured within aperture radius
46-47 A2 --- n_Bmag [a-e ] Note flags for Bmag (1)
48-52 F5.2 mag B-V B-V color
53-60 F8.3 mag Delta_m Aperture correction
61-67 F7.1 arcsec Rad Aperture radius
69-76 A8 "DD/MM/YY" Date Date of observation
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Note (1): Note flags for V and B magnitudes:
a Data marked with "x" in original data sheets
b Data marked with "?" in original data sheets
c Missing computer log entry
d Perhaps 1/2 mag shunt error
e |mag - mag_{rc3}| > 0.75
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Remarks and Modifications:
The Date originally in MM/DD/YY has been converted to FITS standard,
and the fields originally blank (RA, DE, Name, Date) for continuation
have been filled.
Origin: AAS CD-ROM series, Volume 5, 1995 Lee Brotzman [ADS] 27-Sep-1995
(End) [CDS] 23-Aug-1996