J/MNRAS/239/459 Photographic study of A2197 and A2199 (Dixon+, 1989)
The clusters of galaxies A2197 and A2199.
Dixon K.L., Godwin J.G., Peach J.V.
<Mon. Not. R. Astron. Soc., 239, 459-478 (1989)>
=1989MNRAS.239..459D 1989MNRAS.239..459D
ADC_Keywords: Clusters, galaxy ; Galaxy catalogs ; Galaxies, photometry ;
Photometry, photographic
Abstract:
Radii, b26 magnitudes, (b-r) colors, position angles, and
ellipticities have been measured on the plates of Palomar 48-inch
Schmidt telescope taken in May 1976, for 6925 galaxies in a 5-sq deg
field enclosing the close pair of rich clusters A2197 and A2199.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
a2197.dat 66 1560 Data for Abell 2197
a2199.dat 66 5365 Data for Abell 2199
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See also:
VII/42 : GMP catalogue: galaxies in the Coma cluster (Godwin+ 1983)
J/MNRAS/267/431 : Photographic study of A3558 (Metcalfe+, 1994)
J/AJ/117/75 : BR photometry in Coma, A2199 + AWM5 clusters (Conselice+, 1999)
Byte-by-byte Description of file: a2197.dat a2199.dat
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Bytes Format Units Label Explanations
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1- 9 A9 --- ID Identification of the galaxy (1)
12- 15 I4 arcsec Xpos Position on the plate from an arbitrary origin
17- 20 I4 arcsec Ypos Position on the plate from an arbitrary origin
22- 23 I2 h RAh Right Ascension B1950 (hours)
24- 25 I2 min RAm Right Ascension B1950 (minutes)
26- 29 F4.1 s RAs Right Ascension B1950 (seconds)
30 A1 --- DE- Declination B1950 (sign)
31- 32 I2 deg DEd Declination B1950 (degrees)
33- 34 I2 arcmin DEm Declination B1950 (minutes)
35- 36 I2 arcsec DEs Declination B1950 (seconds)
39 A1 --- n_b26 [*] indicates overlapped images
40- 44 F5.2 mag b26 Blue magnitude in 26mag/arcsec2 isophote
47- 50 F4.1 arcsec r*(b) Galaxy radius (2)
52- 56 F5.2 mag b-r ? Photographic color index
58- 60 I3 deg PA ? Position angle (East to North) of ellipse
63- 66 F4.2 --- eps ? Ellipticity (1-b/a)
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Note (1): ID contains /7J and /9J for A2197 and A2199 respectively.
Note (2): The radius r*(b) is defined as sqrt(A/π)
where A is the area of the galaxy enclosed in the 26mag/arcsec2 isophote
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Acknowledgements:
Heinz Andernach (catalog A346 in his collection)
(End) Francois Ochsenbein [CDS] 31-Jul-2006