ACDS V10.0 - Fri May 03 09:59:01 CEST 2019
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Detailed Description of VII/264 : Second Byurakan Survey galaxies. Optical database (Gyulzadian+, 2011)
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Note : this is the description file of the original catalog.
This HTML page corresponds well to the original description, but some minor
changes in the format may have been introduced in the FITS output
files in order to allow for arithmetic operations on quantities
such as coordinates and times. h:m:s and d:m:s units are normally
converted into degrees, and YYYY-MM-DD into julian days.
Similarly, some slight changes may have been introduced in the
units; the value given in the HTML files supersedes the value indicated in the ReadMe
file for this catalogue.
VII/264 Second Byurakan Survey galaxies. Optical database (Gyulzadian+, 2011)
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Second Byurakan Survey galaxies. I. The optical database.
Gyulzadian M., McLean B., Adibekyan V.Zh., Allen R.J., Kunth D.,
Petrosian A., Stepanian J.A.
<Astrofizika, 54, 21 (2011)>
=2011Ap.....54...15G
=2010yCat.7264....0G
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ADC_Keywords: Surveys ; Galaxies, photometry ; Redshifts ; Morphology ;
Photometry, photographic ; Photometry, infrared
Keywords: Second Byurakan Survey Galaxies - astronomical data bases -
galaxies: active - forming galaxies
Abstract:
A database for the entire catalog of the Second Byurakan Survey (SBS)
galaxies is presented. It contains new measurements of their optical
parameters and additional information taken from the literature and
other databases. The measurements were made using Ipg(near-infrared),
Fpg(red) and Jpg(blue) band images from photographic sky survey plates
obtained by the Palomar Schmidt telescope and extracted from the
STScI Digital Sky Survey (DSS). The database provides accurate
coordinates, morphological type, spectral and activity classes,
apparent magnitudes and diameters, axial ratios, and position angles,
as well as number counts of neighboring objects in a circle of radius
50kpc. The total number of individual SBS objects in the database is
now 1676. The 188 Markarian galaxies which were re-discovered by SBS
are not included in this database. We also include redshifts that are
now available for 1576 SBS objects, as well as 2MASS infrared
magnitudes for 1117 SBS galaxies.
Description:
Images extracted from the STScI Digitized Sky Survey (DSS) of Fpg(red)
Jpg(blue), and Ipg(NIR) band photographic sky survey plates obtained
by the Palomar telescope.
File Summary:
FileName Lrecl Records Explanations
× 80 . This file
× ReadMe 80 . This file
× sbs.dat 108 1676 Optical properties of SBS galaxies
× codes.dat 22 21 Morphological codes
× atlas.pdf 512 2886 Atlas as pdf file
See also:
II/223 : First Byurakan Survey (FBS) 2nd Program (Abrahamian+, 1990-96)
VII/251 : SBS/Zwicky cluster relation (Gyulzadian+, 2008)
J/A+AS/147/169 : Accurate positions of 2978 SBS objects (Bicay+, 2000)
J/AJ/124/1283 : Faint Markarian galaxies of SBS. III. (Stepanian+, 2002)
Byte-by-byte Description of file: sbs.dat
Bytes Format Units Label Explanations
1- 10 A10 --- SBS The SBS designation (1)
12- 13 I2 h RAh Hour of Right Ascension (J2000)
15- 16 I2 min RAm Minute of Right Ascension (J2000)
18- 22 F5.2 s RAs Second of Right Ascension (J2000)
24 A1 --- DE- Sign of the Declination (J2000)
25- 26 I2 deg DEd Degree of Declination (J2000)
28- 29 I2 arcmin DEm Arcminute of Declination (J2000)
31- 34 F4.1 arcsec DEs Arcsecond of Declination (J2000)
36- 37 I2 --- TT Morphology type, in codes.dat file (2)
38 A1 --- n_TT [B] B: presence of a bar
40- 44 A5 --- SC Spectral classification (3)
45- 51 A7 --- AC Activity class (4)
52- 57 F6.4 --- z ? Heliocentric redshift
59- 62 F4.1 mag Bjmag Apparent isophotal Jpg (blue) band magnitude
64- 67 F4.1 mag Rfmag Apparent isophotal Fpg (red) band magnitude
69- 72 F4.1 mag Imag Apparent isophotal Ipg (NIR) band magnitude
74- 78 F5.1 arcsec D(J) Major Jpg (blue) band diameter
80- 84 F5.3 --- R(J) [0/1] Axial ratio in Jpg (blue) band
85- 87 I3 deg PA(J) ? Position angle in Jpg (blue) (5)
89- 90 A2 --- Nn Number of galaxies detected within a 50kpc
projected radius (6)
92- 96 F5.2 mag Jmag ? The J band magnitude (7)
98-102 F5.2 mag Hmag ? The H band magnitude (7)
104-108 F5.2 mag Kmag ? The K band magnitude (7)
Note (1): As it appears in the original lists (Stepanian, 2005RMxAA..41..155S)
Note (2): The numerical coding used here for the morphological description
of the galaxies is a slightly modified and simplified version of the
morphological types T given in the RC3 catalog. The codes used are as
in the codes.date file
Note (3): According to Stepanian, 2005RMxAA..41..155S.
Note (4): Activity class, when available, or description of the spectra
according to (Stepanian, 2005RMxAA..41..155S) and DR7 of SDSS. The
various Seyfert classes are denoted by 'Sy1', 'Sy1.5', 'Sy1.8',
'Sy1.9' and 'Sy2'. The symbol 'Sy3' refers to LINERs. Starburst and
HII nuclei respectively are indicated by 'SB' and 'HII'. QSOs and BL
Lacertae objects are also identified.
Note (5): Measured from North (PA=0 degrees) toward East between 0 and
180deg. For round galaxies with axial ratio R(J)~1.00 position angles
were not measured.
Note (6): 'nd' indicates a Markarian galaxy with redshift smaller than
0.005 and no neighbor counts were performed.
Note (7): For 1117 galaxies 2MASX (e.g. Jarrett et al. 2000AJ....119.2498J)
total J, H and K magnitudes are listed.
Byte-by-byte Description of file: codes.dat
Bytes Format Units Label Explanations
1- 2 I2 --- TT Morphocogical code
4- 22 A19 --- MType Morphological type
Acknowledgements:
Vardan Adibekyan, adbvardan@rambler.ru
References:
Markarian & Stepanian Paper I 1983Afz....19..639M
Markarian & Stepanian Paper II 1984Afz....20...21M
Markarian & Stepanian Paper III 1984Afz....20..513M
Markarian, Stepanian & Erastova Paper IV 1985Afz....23..439M
Markarian, Stepanian & Erastova Paper V 1986Afz....25..345M
Stepanian, Lipovetsky & Erastova Paper VI 1988Afz....29..247S
Stepanian, Lipovetsky & Erastova Paper VII 1990Afz....32..441S
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(End) Vardan Adibekyan [YSU, BAO], Patricia Vannier [CDS] 07-Dec-2010