J/MNRAS/350/679 BV photometry of NGC 300 variables (Mennickent+, 2004) ================================================================================ The Araucaria Project. Variable stars outside the Local Group: NGC 300. Mennickent R.E., Pietrzynski G., Gieren W. =2004MNRAS.350..679M ================================================================================ ADC_Keywords: Stars, variable ; Photometry, UBV Keywords: supergiants - Cepheids - stars: Wolf - Rayet - galaxies: stellar content Abstract: We have performed a search for variable stars in the Sculptor Group spiral galaxy NGC 300 using wide-field multi-epoch BV photometry up to a limiting magnitude V~23. Apart from the Cepheid variables in this galaxy already reported in an earlier paper by Pietrzynski et al. (2002, Cat. ) and the variable blue supergiants reported by Bresolin et al. (2002ApJ...567..277B), we have identified 26 additional periodic variables, with periods ranging from 0.2 to 190d, and 121 slow variables. Two of these newly discovered variables are Galactic foreground stars (one of them is a W UMa system), and three correspond to previously identified Wolf-Rayet stars. 16 stars are new Cepheids, and the other objects span a huge range in colours and represent a mixture of different types of luminous variables. Description: CCD BV images centered on NGC 300 were obtained with the Wide-Field Camera at the 2.2m ESO/MPI telescope on La Silla during 29 nights spread over a 5.3 month interval. The observations started on 1999 July 31 and lasted until 2000 January 8. Objects: ----------------------------------------- RA (2000) DE Designation(s) ----------------------------------------- 00 54 53.5 -37 40 59 NGC 300 ----------------------------------------- File Summary: -------------------------------------------------------------------------------- FileName Lrecl Records Explanations -------------------------------------------------------------------------------- ReadMe 80 . This file table1.dat 56 147 Detected variable stars -------------------------------------------------------------------------------- See also: J/AJ/123/789 : ARAUCARIA project: NGC 300 Cepheid var. (Pietrzynski+, 2002) J/AJ/128/1167 : ARAUCARIA project: NGC 300 Cepheid Var. II (Gieren+, 2004) Byte-by-byte Description of file: table1.dat -------------------------------------------------------------------------------- Bytes Format Units Label Explanations -------------------------------------------------------------------------------- 1- 3 I3 --- [MPG2004] Sequential number 5- 6 I2 h RAh Right ascension (J2000.0) 8- 9 I2 min RAm Right ascension (J2000.0) 11- 15 F5.2 s RAs Right ascension (J2000.0) 17 A1 --- DE- Declination sign (J2000.0) 18- 19 I2 deg DEd Declination (J2000.0) 21- 22 I2 arcmin DEm Declination (J2000.0) 24- 27 F4.1 arcsec DEs Declination (J2000.0) 29- 31 I3 --- o_ Number of B,V pairs (1) 33- 37 F5.2 mag Mean B-V colour index 40- 43 F4.2 mag e_ rms uncertainty on 46- 50 F5.2 mag Mean V magnitude 53- 56 F4.2 mag e_ rms uncertainty on -------------------------------------------------------------------------------- Note (1): This is a lower limit for the number of V data points. -------------------------------------------------------------------------------- History: From electronic version of the journal ================================================================================ (End) Patricia Vannier [CDS] 11-Feb-2005