J/other/OEJV/87  Extended catalog of NSVS red AGB variable stars (Usatov+, 2008)
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The Extended Catalog of Red AGB Variable Stars found in the NSVS Database.
    Usatov M., Nosulchik A.
   <Open European J. Var. stars, 87, 1 (2008)>
   =2008OEJV...87....1U    (SIMBAD/NED BibCode)
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ADC_Keywords: Stars, variable ; Photometry

Description:
    In this paper we present the catalog of new Mira-type and SR+L
    variable stars in the Northern Sky Variability Survey (NSVS) database,
    found after complementing the original NSVS object tables with a
    number of additional parameters. By extending the amount of criteria
    search queries can take advantage of and filtering known objects out,
    it became convenient to apply better constrained filters to search new
    variable star candidates. As an example of presented approach, the
    quest for red variables has resulted in 78 Mira-type and 717 SR+L
    stars found that have no identification in General Catalogue of
    Variable Stars, SIMBAD and VSX databases. Most likely the stars
    presented are new discoveries. The classification of these stars is
    based on the near-infrared colors from Two Micron All Sky Survey
    (2MASS) photometry, amplitude and period with the accuracy of the
    classification given ~90%, estimated basing on the current GCVS
    classification scheme.

File Summary:
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 FileName      Lrecl  Records   Explanations
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ReadMe            80        .   This file
catalog.dat      139      794   The Extended Catalog of Red AGB Variable Stars
                                 found in the NSVS Database
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See also:
   B/gcvs : General Catalogue of Variable Stars (Samus+, 2017)
   B/vsx  : AAVSO International Variable Star Index VSX (Watson+, 2014)
   https://skydot.lanl.gov/nsvs/nsvs.php : NSVS Home Page

Byte-by-byte Description of file: catalog.dat
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   Bytes Format Units   Label      Explanations
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   1-  8  I8    ---     NSVS       NSVS ID of Object
  10- 17  I8    ---     NSVS2      ? NSVS ID - Synonym of the same Object
  19- 34  A16   ---     2MASS      Two Micron All Sky Survey (2MASS) ID
  36- 37  I2    h       RAh        2MASS right ascension (J2000)
  39- 40  I2    min     RAm        2MASS right ascension (J2000)
  42- 46  F5.2  s       RAs        2MASS right ascension (J2000)
      48  A1    ---     DE-        2MASS declination sign (J2000)
  49- 50  I2    deg     DEd        2MASS declination (J2000)
  52- 53  I2    arcmin  DEm        2MASS declination (J2000)
  55- 58  F4.1  arcsec  DEs        2MASS declination (J2000)
  60- 69  F10.2 d       Epoch      Epoch of maximal brightness, JD
  71- 76  F6.3  mag     mROTSEmin  Minimal brightness, mROTSE
  78- 83  F6.3  mag     mROTSEmax  Maximal brightness, mROTSE
  85- 89  F5.3  mag     Amp        Amplitude, mROTSE
      91  A1    ---   l_Per        Limit flag on Per
  92- 94  I3    d       Per        Period
  96- 98  I3    d     e_Per        ? rms uncertainty on Per
 100-104  F5.2  ----    Sindex     Period significance index
 106-109  F4.2  ---     RAOV       AOV ratio (1)
 111-113  I3    ---     Nobs       Number of observations in the reduced
                                    database after quality filtering
 115-120  F6.3  mag     Jmag       2MASS Photometry, J Band
 122-127  F6.3  mag     Hmag       2MASS Photometry, H Band
 129-134  F6.3  mag     Kmag       2MASS Photometry, K Band
 136-139  A4    ---     Class      Predicted class (2)
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Note (1): RAOV = QSRT(<m^2^>-<m>^2^)/<s>, where m is the mean magnitude and s
 the standard deviation.
Note (2): Predicted class as follows:
            M    = Mira-type variable
            M:   = suspected Mira-type variable
            SR+L = Semi-regular and long variable
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History:
    From electronic version of the journal

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(End)                                      Patricia Vannier [CDS]    11-Mar-2020
