Index of /ogle/ogle4/OCVS/smc/rrlyr

[ICO]NameLast modifiedSizeDescription
[PARENTDIR]Parent Directory  -  
[TXT]remarks.txt2017-06-29 16:11 671  
[DIR]phot/2017-06-29 16:10 -  
[ ]phot.tar.gz2023-01-10 23:42 24M 
[ ]paper.pdf2016-07-15 00:48 1.9M 
[ ]ident.dat2023-01-10 23:38 682K 
[ ]gc.dat2016-06-09 17:15 436  
[DIR]fcharts/2023-01-10 23:41 -  
[ ]aRRd.dat2018-07-12 05:54 501  
[ ]RRd.dat2023-01-10 23:40 112K 
[ ]RRc.dat2023-01-10 23:40 87K 
[ ]RRab.dat2023-01-10 23:39 519K 
[TXT]README2023-09-25 23:06 6.4K 
=======================================================================
               The OGLE Collection of Variable Stars
           RR Lyrae Stars in the Small Magellanic Cloud

     I. Soszynski, A. Udalski, M. K. Szymanski, L. Wyrzykowski,
       K. Ulaczyk, R. Poleski, P. Pietrukowicz, S. Kozlowski,
          D. Skowron, J. Skowron, P. Mroz, and M. Pawlak

=======================================================================
soszynsk@astrouw.edu.pl

This directory contains the OGLE catalog of RR Lyrae stars in the
fields toward the Small Magellanic Cloud.

The directory structure is as follows:

README            - this file

ident.dat         - identification of stars

RRab.dat          - parameters of RRab stars
RRc.dat           - parameters of RRc stars
RRd.dat           - parameters of RRd stars
aRRd.dat          - parameters of anomalous RRd stars

phot/I/           - I-band OGLE-IV photometry of individual objects
phot/V/           - V-band OGLE-IV photometry of individual objects
phot.tar.gz       - gzipped phot/ directory

fcharts/          - finding charts of individual objects

remarks.txt       - remarks on selected objects

paper.pdf         - PDF version of the paper Soszynski et al. (2016),
                    Acta Astron. 66, 131, (arXiv:1606.02727) describing
                    the catalog.


Format of the file ident.dat:
--------------------------------------------------------------------------
 Bytes  Format Units   Description
--------------------------------------------------------------------------
  1- 19  A19   ---     Star's ID
 22- 25  A4    ---     Subtype of RR Lyr star (RRab, RRc, RRd, aRRd)
 28- 29  I2    h       Right ascension, equinox J2000.0 (hours)
 31- 32  I2    m       Right ascension, equinox J2000.0 (minutes)
 34- 38  F5.2  s       Right ascension, equinox J2000.0 (seconds)
     40  A1    ---     Declination, equinox J2000.0 (sign)
 41- 42  I2    deg     Declination, equinox J2000.0 (degrees)
 44- 45  I2    arcmin  Declination, equinox J2000.0 (arc minutes)
 47- 50  F4.1  arcsec  Declination, equinox J2000.0 (arc seconds)
 53- 68  A16   ---     OGLE-IV ID
 70- 84  A15   ---     OGLE-III ID
 86-100  A15   ---     OGLE-II ID
102-     A     ---     Other designation (from GCVS and VSX)
--------------------------------------------------------------------------

Format of the files RRab.dat and RRc.dat:
--------------------------------------------------------------------------
 Bytes  Format Units   Description
--------------------------------------------------------------------------
  1- 19  A19   ---     Star's ID
 22- 27  F6.3  mag     Intensity mean I-band magnitude
 29- 34  F6.3  mag     Intensity mean V-band magnitude
 37- 45  F9.7  days    Period
 47- 55  F9.7  days    Uncertainty of period
 58- 67  F10.5 days    Time of maximum brightness (HJD-2450000)
 70- 74  F5.3  mag     I-band amplitude (maximum-minimum)
 77- 81  F5.3  ---     Fourier coefficient R_21
 83- 87  F5.3  ---     Fourier coefficient phi_21
 90- 94  F5.3  ---     Fourier coefficient R_31
 96-100  F5.3  ---     Fourier coefficient phi_31
--------------------------------------------------------------------------

Format of the files RRd.dat and aRRd.dat:
--------------------------------------------------------------------------
 Bytes  Format Units   Description
--------------------------------------------------------------------------
  1- 19  A19   ---     Star's ID
 22- 27  F6.3  mag     Intensity mean I-band magnitude
 29- 34  F6.3  mag     Intensity mean V-band magnitude
 37- 45  F9.7  days    First-overtone period
 47- 55  F9.7  days    Uncertainty of first-overtone period
 58- 67  F10.5 days    Time of maximum brightness (HJD-2450000)
 70- 74  F5.3  mag     I-band amplitude (maximum-minimum)
 77- 81  F5.3  ---     Fourier coefficient R_21
 83- 87  F5.3  ---     Fourier coefficient phi_21
 90- 94  F5.3  ---     Fourier coefficient R_31
 96-100  F5.3  ---     Fourier coefficient phi_31
103-111  F9.7  days    Fundamental-mode period
113-121  F9.7  days    Uncertainty of fundamental-mode period
124-133  F10.5 days    Time of maximum brightness (HJD-2450000)
136-139  F5.3  mag     I-band amplitude (maximum-minimum)
143-147  F5.3  ---     Fourier coefficient R_21
149-153  F5.3  ---     Fourier coefficient phi_21
156-160  F5.3  ---     Fourier coefficient R_31
162-166  F5.3  ---     Fourier coefficient phi_31
--------------------------------------------------------------------------

Format of the files with photometry (phot/I/OGLE-SMC-RRLYR-NNNN.dat,
phot/V/OGLE-SMC-RRLYR-NNNN.dat)
--------------------------------------------------------------------------
 Bytes  Format Units   Description
--------------------------------------------------------------------------
  1- 10  F10.5 days    Heliocentric Julian Day - 2450000
 12- 17  F6.3  mag     Magnitude
 19- 23  F5.3  mag     Uncertainty of magnitude
--------------------------------------------------------------------------


Finding charts are gzipped Postscript images. The names of the files are in
the form: OGLE-SMC-RRLYR-NNNN.ps.gz. The finding charts are 60"x60" subframes
of the I-band reference frames centered on the star. White cross marks the
star. North is up and East to the left.


Any presentation of the scientific analysis or usage of the data from the
catalog of RR Lyrae stars in the Galactic bulge should include the appropriate
reference(s) to OGLE paper(s).


Updates:

2017-06-30  The collection extended with objects from OGLE-SMC-RRLYR-6372
            to OGLE-SMC-RRLYR-6574 detected in the OGLE-IV auxiliary
            photometric databases. Light curves of other objects
            supplemented with new observations. For details see: Soszynski
            et al. (2017), Acta Astron. 67, 103 (arXiv:1706.09452).

2018-06-04  Corrected erroneous calibration of the V-band photometry for
            61 objects.

2018-07-12  Corrected erroneous calibration of the I-band photometry for
            358 objects.

2019-07-04  The collection extended with 140 RR Lyr stars from
            OGLE-SMC-RRLYR-6575 to OGLE-SMC-RRLYR-6714 detected in the
            OGLE-IV outer fields and discovered by the Gaia team.
            For details see: Soszynski et al. (2019), Acta Astron. 69, 87
            (arXiv:1907.02073).

2022-08-20  74 additional RR Lyrae stars from the Gaia DR3 catalog
            (from OGLE-SMC-RRLYR-6715 to OGLE-SMC-RRLYR-6788)

2023-01-10  49 additional RR Lyrae stars (from OGLE-SMC-RRLYR-6789 to
            OGLE-SMC-RRLYR-6837)