J/ApJ/675/1254 M37 variable stars (Hartman+, 2008) ================================================================================ Deep MMT transit survey of the open cluster M37. II. Variable stars. Hartman J.D., Gaudi B.S., Holman M.J., McLeod B.A., Stanek K.Z., Barranco J.A., Pinsonneault M.H., Kalirai J.S. =2008ApJ...675.1254H ================================================================================ ADC_Keywords: Clusters, open ; Stars, variable ; Binaries, eclipsing Keywords: binaries: eclipsing - open clusters and associations: individual (M37) - stars: fundamental parameters - stars: rotation - stars: variables: other - surveys Abstract: We have conducted a deep (15~~500) that are members of the cluster. We identify and analyze five particularly interesting individual variables, including a previously identified variable that we suggest is probably a hybrid gamma Doradus/delta Scuti pulsator, two possible quiescent cataclysmic variables, a detached eclipsing binary (DEB) with at least one gamma Doradus pulsating component (only the second such variable found in an eclipsing binary), and a low-mass (M_P_~M_S~0.6M_{sun}_ DEB that is a possible cluster member. A preliminary determination of the physical parameters for the DEB+gamma Doradus system yields M_P_=1.58+/-0.04M_{sun}_, M_S_=1.58+/-0.04M_{sun}_, R_P_=1.39+/-0.07R_{sun}_, and R_S_=1.38+/-0.07R_{sun}_. Description: The observations was presented in Paper I (Cat. J/ApJ/675/1233). The spectra were obtained on four separate nights between 2007 February 23 and March 12 and were used to measure Teff, [Fe/H], vsini , and the radial velocity (RV) via cross-correlation. File Summary: -------------------------------------------------------------------------------- FileName Lrecl Records Explanations -------------------------------------------------------------------------------- ReadMe 80 . This file table1.dat 112 1454 Variable star catalog table3.dat 112 29 Suspected variable star catalog -------------------------------------------------------------------------------- See also: J/A+A/381/65 : BVI photometry of NGC 2099 (Nilakshi+, 2002) J/A+A/412/721 : CCD {Delta}a-photometry of 5 open clusters (Paunzen+, 2003) J/A+A/483/253 : BV photometry of NGC 2099 variables (Messina+, 2008) J/ApJ/675/1233 : gri photometry in M37 (NGC 2099) (Hartman+, 2008) J/ApJ/691/342 : griBVI photometry in M37 (Hartman+, 2009) Byte-by-byte Description of file: table?.dat -------------------------------------------------------------------------------- Bytes Format Units Label Explanations -------------------------------------------------------------------------------- 1- 4 I4 --- ID Running identification number (1) 6- 7 I2 h RAh Hour of Right Ascension (J2000) 9- 10 I2 min RAm Minute of Right Ascension (J2000) 12- 16 F5.2 s RAs Second of Right Ascension (J2000) 18 A1 --- DE- Sign of the Declination (J2000) 19- 20 I2 deg DEd Degree of Declination (J2000) 22- 23 I2 arcmin DEm Arcminute of Declination (J2000) 25- 28 F4.1 arcsec DEs Arcsecond of Declination (J2000) 30- 31 I2 --- Chip ? CCD chip number 33- 43 F11.8 d Per ? Period 45- 55 F11.8 d e_Per ? The 1{sigma} error in Per 57- 63 F7.4 mag ? Flux average r band magnitude 65- 70 F6.4 mag rms ? The root-mean-square of r band light curve 72- 77 F6.3 mag gmag ? Paper I (Cat. J/ApJ/675/1233) g band magnitude 79- 84 F6.3 mag rmag ? Paper I (Cat. J/ApJ/675/1233) r band magnitude 86- 91 F6.3 mag imag ? Paper I (Cat. J/ApJ/675/1233) i band magnitude (2) 93- 98 F6.3 mag Bmag ? Kilirai et al. (2001AJ....122.3239K) B band magnitude 100-105 F6.3 mag Vmag ? Kilirai et al. (2001AJ....122.3239K) V band magnitude 107-108 I2 --- Type Source type flag (3) 110-112 I3 --- Sel Selection flag (4) -------------------------------------------------------------------------------- Note (1): Nomenclature note: Table 1: in Simbad Table 3: in Simbad Note (2): In table3, the i magnitude is missing, no color term was applied in transforming from the instrumental r and i magnitudes to the Sloan 2.5m system. Note (3): A two-bit flag. The first bit denotes whether or not the star is an eclipsing binary. The second denotes whether or not it shows pulsations. Note (4): A three-bit flag. The first bit denotes if the variable was selected by LS, the second if it was selected by AoV and the third if it was selected by BLS. -------------------------------------------------------------------------------- History: From electronic version of the journal References: Hartman et al., Paper I 2008ApJ...675.1233H Cat. J/ApJ/675/1233 Hartman et al., Paper III 2009ApJ...691..342H Cat. J/ApJ/691/342 Hartman et al., Paper IV 2009ApJ...695..336H ================================================================================ (End) Greg Schwarz [AAS], Patricia Vannier [CDS] 11-Jul-2010