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.
<Acta Astron., 53, 27 (2003)>
=2003AcA....53...27P 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:
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FileName Lrecl Records Explanations
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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
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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
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Bytes Format Units Label Explanations
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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)
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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,
alpha2 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 2001MNRAS.327..601E
Cat. J/MNRAS/327/601 and Soszynski et al.,
2002AcA....52..143S 2002AcA....52..143S, Cat. J/AcA/52/143), 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 1997AcA....47....1U, Cat. II/213
Names as OGLE MMN-A VNNN
- Wozniak & Szymanski, 1998AcA....48..269W 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. J/AcA/48/289
Names as OGLE-LT-VNNN)
- Szymanski, Kubiak & Udalski, 2001AcA....51..259S 2001AcA....51..259S
Names as SKU MMNA.NNNNNN (OGLE MMN-A I NNNNNN in Simbad)
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Byte-by-byte Description of file: idata/* vdata/*
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Bytes Format Units Label Explanations
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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.
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History:
Copied at http://www.astro.uni.wroc.pl/ldb/ogle1/
(End) Patricia Bauer [CDS] 20-Oct-2003