J/AJ/122/1383 DIRECT BVI photometry in M31 (Mochejska+, 2001)
The DIRECT project: catalogs of stellar objects in nearby galaxies.
II. Eastern arm and NGC 206 in M31.
Mochejska B.J., Kaluzny J., Stanek K.Z., Sasselov D.D.
<Astron. J. 122, 1383 (2001)>
=2001AJ....122.1383M 2001AJ....122.1383M
ADC_Keywords: Galaxies, nearby ; Photometry
Mission_Name:
Keywords: galaxies: individual (M31) - galaxies: stellar content
Abstract:
DIRECT is a project to directly obtain the distances to two important
galaxies in the cosmological distance ladder, M31 and M33, using
detached eclipsing binaries and Cepheids. As part of our search for
these variables, we have obtained photometry and positions for
thousands of stellar objects within the monitored fields, covering an
area of 557.8arcmin2. Here we present the equatorial coordinates
and BVI photometry for 26,712 stars in the M31 galaxy, along the
eastern arm and in the vicinity of the star-forming region NGC 206.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table1a.dat 88 4276 Stellar objects in field M31A
table1b.dat 88 3738 Stellar objects in field M31B
table1c.dat 88 11809 Stellar objects in field M31C
table1d.dat 88 2549 Stellar objects in field M31D
table1e.dat 88 4330 Stellar objects in field M31F
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See also:
J/AJ/115/1016 : M31B eclipsing binaries and Cepheids (Kaluzny+ 1998)
J/AJ/115/1894 : M31A eclipsing binaries and Cepheids (Stanek+ 1998)
J/AJ/117/2810 : M31C eclipsing binaries and Cepheids (Stanek+, 1999)
J/AJ/118/346 : M31D eclipsing binaries and Cepheids (Kaluzny+ 1999)
J/AJ/118/2211 : M31F eclipsing binaries and Cepheids (Mochejska+ 1999)
Byte-by-byte Description of file: table1?.dat
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Bytes Format Units Label Explanations
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1- 21 A21 --- D31 Star name (D31JHHMMSS.s+DDMMSS.s)
23- 24 I2 h RAh Right ascension (J2000)
26- 27 I2 min RAm Right ascension (J2000)
29- 33 F5.2 s RAs Right ascension (J2000)
35 A1 --- DE- Declination sign (J2000)
36- 37 I2 deg DEd Declination (J2000)
39- 40 I2 arcmin DEm Declination (J2000)
42- 46 F5.2 arcsec DEs Declination (J2000)
48- 52 F5.2 mag Vmag Johnson V band magnitude
54- 58 F5.2 mag Imag ? Cousins I band magnitude
60- 64 F5.2 mag Bmag ? Johnson B band magnitude
66- 70 F5.2 mag e_Vmag Standard error in the Johnson V magnitude
72- 76 F5.2 mag e_Imag ? Standard error in the Cousins I magnitude
78- 82 F5.2 mag e_Bmag ? Standard error in the Johnson B magnitude
84- 88 F5.2 --- Js ? Stetson variability index JS
(Stetson, 1996PASP..108..851S 1996PASP..108..851S)
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History:
From electronic version of the journal
(End) Greg Schwarz [AAS], Patricia Bauer [CDS] 14-Jan-2002