J/AcA/51/317 OGLE DIA. Catalog of LMC and SMC images (Zebrun+, 2001)
The Optical Gravitational Lensing Experiment.
Difference image analysis of LMC and SMC data. The catalog.
Zebrun K., Soszinski I., Wozniak P.R., Udalski A., Kubiak M., Szymanski M.,
Pietrzynski G., Szewczyk O., Wyrzykowski L.
<Acta Astron., 51, 317 (2001)>
=2001AcA....51..317Z 2001AcA....51..317Z
ADC_Keywords: Surveys ; Magellanic Clouds ; Stars, variable ; Photometry
Keywords: Magellanic Clouds - catalogs - stars: variables: general
Abstract:
We present the first edition of a catalog of variable stars found in
the Magellanic Clouds using OGLE-II data obtained during four years:
1997-2000. The catalog covers about 7 square degrees of the sky - 21
fields in the Large Magellanic Cloud and 11 fields in the Small
Magellanic Cloud. All variables were found with the Difference Image
Analysis (DIA) software. The catalog is divided into two sections. The
DC section contains FITS reference images (obtained by co-adding 20
best frames for each field) and profile photometry (DOPHOT) of all
variable stars on those images. The AC section contains flux
variations and magnitudes of detected variable stars obtained with DIA
as well as with DOPHOT. The errors of magnitude measurements are
0.005mag for the brightest stars (I<16mag) then grow to 0.08mag at
19mag stars and to 0.3mag at 20.5mag. Typically, there are about 400
I-band data points and about 30 V and B-band data points for more than
68 000 variables. The stars with high proper motions were excluded
from this catalog and will be presented in a separate paper. A detailed
analysis and classification of variable stars will be presented
elsewhere. The catalog is available in electronic form via FTP and
through WWW interface from the OGLE Internet archive. The FTP catalog
contains approximately 2 GB of data.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table1.dat 57 32 LMC and SMC fields observed by OGLE-II
tables/* . 32 LMC and SMC fields profile photometry (DOPHOT)
of all variable stars
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See also:
J/AcA/49/223 : BVI photometry of OGLE LMC Cepheids (Udalski+, 1999)
J/AcA/49/543 : OGLE LMC + SMC Cepheids VI photometry (Pietrzynski+, 1999)
J/AcA/48/147 : OGLE SMC BVI photometry (Udalski+ 1998)
J/AcA/50/307 : OGLE LMC BVI photometry (Udalski+, 2000)
J/AcA/49/521 : OGLE LMC star clusters BVI photometry (Pietrzynski+, 1999)
J/AcA/50/337 : OGLE LMC star clusters (Pietrzynski+, 2000)
J/AcA/48/175 : OGLE SMC clusters (Pietrzynski+ 1998)
J/AcA/50/355 : OGLE Multiple Cluster Candidates in LMC (Pietrzynski+, 2000)
J/AcA/48/563 : BVI photometry of OGLE SMC eclipsing binaries (Udalski+, 1998)
J/AcA/53/1 : OGLE eclipsing binaries in LMC (Wyrzykowski+, 2003)
J/AcA/54/1 : OGLE II SMC eclipsing binaries (Wyrzykowski+, 2004)
J/AcA/49/437 : BVI photometry of OGLE SMC Cepheids (Udalski+, 1999)
J/AcA/53/93 : OGLE RR Lyrae in LMC (Soszynski+, 2003)
http://sirius.astrouw.edu.pl/~ogle/ogle2/dia/ : OGLE DIA Home Page
ftp://sirius.astrouw.edu.pl/ogle : OGLE Home Page
Byte-by-byte Description of file: table1.dat
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Bytes Format Units Label Explanations
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1- 8 A8 --- Field Field name
10- 12 I3 --- Nobs Number of I-band measurements
14- 17 I4 --- Nvar Number of variables stars
19- 24 I6 --- Ntot Number of total stars found on reference
images by standards DOPHOT routine
26 I1 h RAh Right ascension (J2000)
28- 29 I2 min RAm Right ascension (J2000)
31- 32 I2 s RAs Right ascension (J2000)
34 A1 --- DE- Declination sign (J2000)
35- 36 I2 deg DEd Declination (J2000)
38- 39 I2 arcmin DEm Declination (J2000)
41- 42 I2 arcsec DEs Declination (J2000)
46- 57 A12 --- FileName Name of the file with stellar data in
subdirectory tables
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Byte-by-byte Description of file: tables/*
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Bytes Format Units Label Explanations
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1- 4 A4 --- --- [OGLE] OGLE
5- 20 A16 --- OGLE OGLE designation (HHMMSSss-DDMMSSs)
22 I1 h RAh Right ascension (J2000)
23 A1 --- --- [:]
24- 25 I2 min RAm Right ascension (J2000)
26 A1 --- --- [:]
27- 31 F5.2 s RAs Right ascension (J2000)
33 A1 --- DE- Declination sign (J2000)
34- 35 I2 deg DEd Declination (J2000)
36 A1 --- --- [:]
37- 38 I2 arcmin DEm Declination (J2000)
39 A1 --- --- [:]
40- 43 F4.1 arcsec DEs Declination (J2000)
45- 53 F9.6 h RAhour Right ascension in decimal hours (J2000)
54- 63 F10.6 deg DEdeg Declination in decimal degrees (J2000)
65- 72 F8.3 pix Xpos X position
74- 81 F8.3 pix Ypos Y position
84 I1 --- X [1/5] X number of the subsection
containing the star
86- 87 I2 --- Y [1/64] Y number of the subsection
containing the star
89- 98 F10.4 --- Prof Photometry profile from DIA (Difference Image
Analysis)
100-107 F8.4 --- e_Prof Error on Prof
109-118 F10.4 --- Aphot Aperture photometry
120-126 F7.4 --- e_Aphot Error on ApPhot
129-131 I3 --- Itot Number of Iband frames used in DIA, i.e. total
number of I-band OGLE observations of a
given object
133-135 I3 --- Idat Number of I-band data from OGLE databases
137-138 I2 --- Vdat Number of V-band data from OGLE databases
140-141 I2 --- Bdat Number of B-band data from OGLE databases
144-149 I6 --- ID1 DOPHOT ID number of the closest star
identified by DOPHoT on the DIA reference
frame (summed frame)
151-156 F6.3 pix dist1 Distance to DOPHOT star ID1
158-163 F6.3 mag mag1 ?=99.999 Magnitude of DOPHOT star ID1
165-169 F5.3 mag e_mag1 Error on mag1
172-177 I6 --- ID2 OGLE ID number of the closest star identified
by OGLE template
179-184 F6.3 pix dist2 Distance to OGLE ID2 star
186-191 F6.3 mag mag2 Magnitude of OGLE ID2 star
193-197 F5.3 mag e_mag2 Error on mag2
199-248 A50 --- Remarks Additional flags and remarks
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History:
21-Aug-2009: Copied at ftp://sirius.astrouw.edu.pl/ogle/ogle2/dia
10-Dec-2024: sign of declination corrected for SMC sources (DEdeg)
(End) Patricia Vannier [CDS] 07-Mar-2009