J/AcA/53/27 VI photometry of MM1 and MM7 OGLE fields (Pigulski+, 2003) ================================================================================ Reanalysis of the OGLE-I observations with the image substraction method. I. Galactic Bar fields MM1-A, MM1-B, MM7-A, and MM7-B. Pigulski A., Kolaczkowski Z., Kopacki G. =2003AcA....53...27P ================================================================================ ADC_Keywords: Stars, variable ; Photometry Keywords: stars: variables: general - delta Sct - stars: variables: RR Lyr - catalogs Abstract: As a result of the reanalysis of the OGLE-I observations by means of the image subtraction method, we present the first part of a catalog, consisting of data for variable stars in four Galactic fields observed by OGLE-I, viz. MM1-A, MM1-B, MM7-A, and MM7-B. In total, 2016 variable stars have been found. This increased the number of known variable stars in these fields more than twofold. We comment on the detectability of the variable stars in previous studies. File Summary: -------------------------------------------------------------------------------- FileName Lrecl Records Explanations -------------------------------------------------------------------------------- ReadMe 80 . This file tables.dat 182 2016 Catalog of variable stars in the OGLE-I fields from the Image Subtraction Method idata/* . 2292 I light curves vdata/* . 1534 V light curves -------------------------------------------------------------------------------- See also: I/244 : OGLE General Catalog of Stars. I. (Szymanski+ 1996) II/213 : OGLE Galactic Bulge periodic variables (Udalski+ 1996) J/MNRAS/343/1131 : 1998-2000 OGLE events microlensing limits (Tsapras+, 2003) J/AcA/48/289 : OGLE-I long-period & non-periodic variables (Zebrun 1998) Byte-by-byte Description of file: tables.dat -------------------------------------------------------------------------------- Bytes Format Units Label Explanations -------------------------------------------------------------------------------- 1- 8 A8 --- Name Star name in the catalogue, MMN-NNNN 11- 12 I2 h RAh Right ascension (epoch J2000.0) 14- 15 I2 min RAm Right ascension (epoch J2000.0) 17- 21 F5.2 s RAs Right ascension (epoch J2000.0) 26 A1 --- DE- Declination sign (epoch J2000.0) 27- 28 I2 deg DEd Declination (epoch J2000.0) 30- 31 I2 arcmin DEm Declination (epoch J2000.0) 33- 36 F4.1 arcsec DEs Declination (epoch J2000.0) 41- 54 A14 --- Var Variability class (1) 55- 65 F11.8 d Per ? Period, for periodic stars only 67- 76 F10.8 d Per2 ? Second value for the period 78- 86 F9.7 d Per3 ? Third value for the period 88- 90 I3 --- o_Icmag Number of observations in the Ic filter 92- 94 I3 --- o_Vmag Number of observations in the V filter 97-102 F6.3 mag Icmag ? Reference Ic-filter magnitude 105-110 F6.3 mag V-Ic ? Reference (V-Ic) colour index 112 I1 --- n_Icmag Number of light curves in I band 114 I1 --- n_Vmag Number of light curves in V band 116-182 A67 --- Note Cross-identifications (2) -------------------------------------------------------------------------------- Note (1): Variable are classified in the following groups: DSCT = delta Scuti stars. If the light curve had the Ic-filter full amplitude larger than 0.1mag, the designation HADS (high-amplitude delta Scuti star) was given in addition to DSCT. Note that some of the HADS, especially with the shortest periods, can be Population II pulsators, known as SX Phe stars. RRc = RR Lyrae star of Bailet type c. We also included one RRd (double-mode RR Lyr star) into this group. For RRc stars with non-radial modes present, the "NR" designation has been added (this applies also to RRab stars). RRab = RR Lyrae star of Bailet type ab EW = Eclipsing binaries of W UMa type EB = Eclipsing binaries of beta Lyrae type EA = Eclipsing binaries of Algol type SIN = Stars with sinusoidal light curves showing the evidence of a single periodicity. Thgis category may include such variables as the monoperiodic Slowly Pulsating B-type (SPB) stars, alpha^2^ CVn stars, gamma Dor stars, also some ellipsoidal variables (with half the orbital period) and chromospherically active stars, etc. NSIN = Stars with strictly periodic light curves, which are evidently non-sinusoidal. the ellipsoidal variables (ELL designation added) can present such light curves, but other types of variability are also possible in this group. PER = Stars with a dominating periodicity, but showing also amplitude and/or phase changes or the periodic changes superimposed on the variability on a longer rime-scale. A majority of semi-regular variables fall into this category. APER = Stars that show aperiodic light variations. It has to be noted that stars with linear light changes that might arise from high proper motion (see Eyer and Wozniak, 2001MNRAS.327..601E Cat. and Soszynski et al., 2002AcA....52..143S, Cat. ), but also from the intrinsic light variation, were not included in out catalog. CEP = Cepheids variables and RV Tau stars MIRA = Miras MLE = Microlensing events Note (2): The stars are cross-identified with the following OGLE-I catalogs: - Udalski et al., 1997AcA....47....1U, Cat. Names as OGLE MMN-A VNNN - Wozniak & Szymanski, 1998AcA....48..269W Names as WS MMNA.NNNNNN (OGLE MMN-A I NNNNNN in Simbad) for variables and OGLE #NN (OGLE NN in Simbad) for microlensing events - Zebrun, 1998, Cat. Names as OGLE-LT-VNNN) - Szymanski, Kubiak & Udalski, 2001AcA....51..259S Names as SKU MMNA.NNNNNN (OGLE MMN-A I NNNNNN in Simbad) -------------------------------------------------------------------------------- Byte-by-byte Description of file: idata/* vdata/* -------------------------------------------------------------------------------- Bytes Format Units Label Explanations -------------------------------------------------------------------------------- 1- 11 F11.5 d HJD-2400000 Heliocentric Julian Day minus 2400000 14- 22 F9.2 --- DFlux Difference flux (in arbitrary flux units) 24- 29 F6.2 --- e_DFlux Error of the difference flux (in arbitrary flux units) 31- 37 F7.4 mag mag Magnitude transformed from the difference flux 39- 43 F5.4 mag e_mag Error of the magnitude. This error is transformed from that given in column e_DFLux and does not include the errors of transformation. -------------------------------------------------------------------------------- History: Copied at http://www.astro.uni.wroc.pl/ldb/ogle1/ ================================================================================ (End) Patricia Bauer [CDS] 20-Oct-2003