J/AcA/53/93 OGLE RR Lyrae in LMC (Soszynski+, 2003)
The Optical Gravitanional Lensing Experiment.
Catalog of RR Lyr stars in the Large Magellanic Cloud.
Soszynski I., Udalski A., Szymanski M., Kubiak M., Pietrzynski G.,
Wozniak P., Zebrun K., Szewczyk O., Wyrzykowski L.
<Acta Astron., 53, 93 (2003)>
=2003AcA....53...93S 2003AcA....53...93S
ADC_Keywords: Magellanic Clouds ; Stars, variable ; Photometry, UBVRI
Keywords: stars: variable: RR Ly - Magellanic Clouds - Catalogs
Abstract:
We present the catalog of RR Lyr stars discovered in a 4.5 square
degrees area in the central parts of the Large Magellanic Cloud (LMC).
Presented sample contains 7612 objects, including 5455 fundamental
mode pulsators (RRab), 1655 first-overtone (RRc), 272 second-overtone
(RRe) and 230 double-mode RR Lyr stars (RRd). Additionally we attach
alist of several dozen other short-period pulsating variables. The
catalog data include astrometry, periods, BVI photometry, amplitudes,
and parameters of the Fourier decomposition of the I-band light curve
of each object.
We provide a list of six LMC star clusters which contain RR Lyr stars.
The richest cluster, NGC 1835, hosts 84 RR Lyr variables. The period
distribution of these stars suggests that NGC1835 shares features of
Oosterhoff type I and type II groups.
All presented data, including individual BVI observations and finding
charts are available from the OGLE Internet archive at
ftp://sirius.astrouw.edu.pl/ogle/ogle2/var_stars/lmc/rrlyr
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
catalog.dat 149 7870 Catalog of RR Lyr stars from the
LMC_SC1 LMC_SC21 fields
dmod.dat 205 247 Basic data for double-mode RR Lyr stars
non_rad.dat 47 1005 RR Lyr stars which exhibit closely spaced
frequencies
rrclust.dat 37 185 RR Lyr stars in six star clusters in the LMC
other.dat 172 38 Other pulsating stars
overlap.dat 50 501 Cross-identification of the same objects in
the Catalog
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See also:
ftp://sirius.astrouw.edu.pl/ogle/ogle2/var_stars/lmc/rrlyr : OGLE
J/AcA/48/113 : OGLE RR Lyrae VI photometry (Udalski, 1998)
J/AcA/49/223 : BVI photometry of OGLE LMC Cepheids (Udalski+, 1999)
J/AcA/49/521 : OGLE LMC star clusters BVI photometry (Pietrzynski+, 1999)
J/AcA/49/543 : OGLE LMC + SMC Cepheids VI photometry (Pietrzynski+, 1999)
J/AcA/50/337 : OGLE LMC star clusters (Pietrzynski+, 2000)
J/AcA/51/317 : OGLE. Catalog ofother/ LMC and SMC images (Zebrun+, 2001)
J/AcA/53/1 : OGLE eclipsing binaries in LMC (Wyrzykowski+, 2003)
Byte-by-byte Description of file: catalog.dat
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Bytes Format Units Label Explanations
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1- 8 A8 --- Field Field name (LMC_SCNN)
10- 13 A4 --- --- [OGLE]
14- 31 A18 ---- OGLE Star identification, HHMMSS.ss-DDMMSS.s (G1)
33- 38 I6 --- Star Star internal number
(consistent with published LMC maps)
41- 49 F9.7 d Per Period
51- 59 F9.7 d e_Per rms uncertainty on Per
62- 70 F9.5 d T0-2450000 Time of maximum brightness, in HJD-2450000
73- 77 F5.2 mag Imag I magnitude (intensity mean)
79- 83 F5.2 mag Vmag ? V magnitude (intensity mean)
85- 89 F5.2 mag Bmag ? B magnitude (intensity mean)
92- 96 F5.2 mag I0mag Dereddened I magnitude
98-102 F5.2 mag V0mag ? Dereddened V magnitude
104-108 F5.2 mag B0mag ? Dereddened B magnitude
111-114 F4.2 mag AI Amplitude in I band
116-119 F4.2 mag AV ? Amplitude in V band
121-124 F4.2 mag AB ? Amplitude in B band
127-130 F4.2 --- R21 ? R21 Fourier parameter
132-135 F4.2 rad phi21 ? φ21 Fourier parameter
138-141 F4.2 --- R31 ? R31 Fourier parameter
143-146 F4.2 rad phi31 ? φ31 Fourier parameter
148-149 A2 --- Type RR Lyrae type
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Byte-by-byte Description of file: dmod.dat
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Bytes Format Units Label Explanations
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1- 8 A8 --- Field Field designation (LMC_SCNN)
10- 13 A4 --- --- [OGLE]
14- 31 A18 ---- OGLE Star identification, HHMMSS.ss-DDMMSS.s (G1)
33- 38 I6 --- Star Star internal number
(consistent with published LMC maps)
41- 49 F9.7 d P1 First-overtone (FO) period
51- 59 F9.7 d e_P1 rms uncertainty on P1
62- 70 F9.7 d P0 Fundamental (FU) period
72- 80 F9.7 d e_P0 rms uncertainty on P0
83- 91 F9.7 --- P1/P0 Periods ratio, P1/P0
94- 98 F5.2 mag Imag I magnitude
100-104 F5.2 mag Vmag ? V magnitude
106-110 F5.2 mag Bmag ? B magnitude
113-117 F5.2 mag I0mag Dereddened I magnitude
119-123 F5.2 mag V0mag ? Dereddened V magnitude
125-129 F5.2 mag B0mag ? Dereddened B magnitude
132-135 F4.2 mag AIFO Amplitude in I band of first overtone (FO)
137-140 F4.2 mag AVFO ? Amplitude in V band (FO)
142-145 F4.2 mag ABFO ? Amplitude in B band (FO)
148-151 F4.2 --- R21FO ? R21 Fourier parameter (FO)
153-156 F4.2 rad phi21FO ? phi21 Fourier parameter (FO)
159-162 F4.2 --- R31FO ? R31 Fourier parameter (FO)
164-167 F4.2 rad phi31FO ? phi31 Fourier parameter (FO)
170-173 F4.2 mag AIFU Amplitude in I band in fundamental mode (FU)
175-178 F4.2 mag AVFU ? Amplitude in V band (FU)
180-183 F4.2 mag ABFU ? Amplitude in B band (FU)
186-189 F4.2 --- R21FU ? R21 Fourier parameter (FU)
191-194 F4.2 rad phi21FU ? phi21 Fourier parameter (FU)
197-200 F4.2 --- R31FU ? R31 Fourier parameter (FU)
202-205 F4.2 rad phi31FU ? phi31 Fourier parameter (FU)
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Byte-by-byte Description of file: non_rad.dat
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Bytes Format Units Label Explanations
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1- 4 A4 --- --- [OGLE]
5- 22 A18 --- OGLE Star identification, HHMMSS.ss-DDMMSS.s (G1)
25- 31 F7.5 d Per Dominant period
33- 39 F7.5 d Per2 Second period
41- 47 F7.5 --- Per/Per2 Period ratio
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Byte-by-byte Description of file: rrclust.dat
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Bytes Format Units Label Explanations
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1- 4 A4 --- --- [OGLE]
5- 22 A18 --- OGLE Star identification, HHMMSS.ss-DDMMSS.s (G1)
25- 31 A7 --- Cluster Cluster name
34- 37 F4.1 arcsec Dist Angular distance from the cluster center
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Byte-by-byte Description of file: other.dat
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Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 8 A8 --- Field Field designation (LMC_SCNN)
10- 13 A4 --- --- [OGLE]
14- 31 A18 ---- OGLE Star identification, HHMMSS.ss-DDMMSS.s (G1)
33- 38 I6 --- Star Star internal number
(consistent with published LMC maps)
41- 49 F9.7 d Per Period
51- 59 F9.7 d e_Per rms uncertainty on Per
62- 70 F9.5 d T0-2450000 Time of maximum brightness, in HJD-2450000
73- 77 F5.2 mag Imag I magnitude (intensity mean)
79- 83 F5.2 mag Vmag ? V magnitude (intensity mean)
85- 89 F5.2 mag Bmag ? B magnitude (intensity mean)
92- 96 F5.2 mag I0mag Dereddened I magnitude
98-102 F5.2 mag V0mag ? Dereddened V magnitude
104-108 F5.2 mag B0mag ? Dereddened B magnitude
111-114 F4.2 mag AI Amplitude in I band
116-119 F4.2 mag AV ? Amplitude in V band
121-124 F4.2 mag AB ? Amplitude in B band
127-130 F4.2 --- R21 ? R21 Fourier parameter
132-135 F4.2 rad phi21 ? phi21 Fourier parameter
138-141 F4.2 --- R31 ? R31 Fourier parameter
143-146 F4.2 rad phi31 ? phi31 Fourier parameter
148-177 A30 --- Rem Remarks
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Byte-by-byte Description of file: overlap.dat
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Bytes Format Units Label Explanations
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1- 4 A4 --- --- [OGLE]
5- 22 A18 --- OGLE Star identification, HHMMSS.ss-DDMMSS.s (G1)
25- 32 A8 --- Field1 Name of the first LMC field (LMC_SCNN)
34- 41 A8 --- Field2 Name of the second LMC field (LMC_SCNN)
43- 50 A8 --- Field3 Name of the third LMC field (LMC_SCNN)
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Global notes:
Note (G1): OGLE designation:
OGLEHHMMSS.ss-DDMMSS.s, J2000
OGLE JHHMMSS.ss-DDMMSS.s in Simbad
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History:
Copied at ftp://sirius.astrouw.edu.pl/ogle/ogle2/var_stars/lmc/rrlyr
(End) James Marcout, Patricia Bauer [CDS] 20-Nov-2003