J/AcA/63/53         ASAS photometry of ROSAT sources. II.    (Kiraga+, 2013)
ASAS photometry of ROSAT sources. II. New variables from the ASAS North Survey.
    Kiraga M., Stepien K.
   <Acta Astron., 63, 53-66 (2013)>
   =2013AcA....63...53K 2013AcA....63...53K
ADC_Keywords: Stars, variable ; X-ray sources ; Photometry
Keywords: stars: variables: general - stars: rotation - stars: activity -
          X-rays: stars
Abstract:
    We present a catalog of 307 optical counterparts of the bright ROSAT
    X-ray sources, identified with the ASAS North survey data and showing
    periodic brightness variations. They all have declination north of
    -25°. Other data available from the literature for the listed
    stars are also included. All the tabulated stars are new variables,
    except for 13 previously known, for which the revised values of
    periods are given.
File Summary:
--------------------------------------------------------------------------------
 FileName   Lrecl  Records   Explanations
--------------------------------------------------------------------------------
ReadMe         80        .   This file
catalog.dat   336      307   Catalog of the 307 periodic variables
refs.dat       69       23   References
--------------------------------------------------------------------------------
See also:
      IX/10  : ROSAT All-Sky Bright Source Catalogue (1RXS) (Voges+ 1999)
      II/264 : ASAS Variable Stars in Southern hemisphere (Pojmanski+, 2002-05)
 J/AcA/62/67 : ASAS photometry of ROSAT sources (Kiraga, 2012)
Byte-by-byte Description of file: catalog.dat
--------------------------------------------------------------------------------
   Bytes Format Units    Label   Explanations
--------------------------------------------------------------------------------
   1- 15  A15   ---      1RXS    ROSAT Bright Source Catalog (RBSC, Cat. IX/10)
                                 designation of X-ray source (HHMMSS.S+DDMMSS)
  17- 29  A13   ---      ASAS    ASAS designation of the optical counterpart of
                                 the RBSC source (HHMMSS+DDMM.m)
  31- 34  F4.1  arcsec   Dist    Distance between the position of the ROSAT
                                 object and ASAS optical counterpart (note
                                 that one pixel of the ASAS detector ∼15")
  36- 58  A23   ---      Name    Name of the object from the SIMBAD database
  60- 68  A9    ---      SpT     MK spectral type from SIMBAD, if available
  70- 75  F6.1  mas/yr   pmRA    Proper motion in right ascension
  77- 82  F6.1  mas/yr   pmDE    Proper motion in declination
  84- 87  I4    ---    o_Vmag    Number of the observations in V band
  89- 94  F6.3  mag      Vmag    Mean ASAS V magnitude
  96-100  F5.3  mag    e_Vmag    Standard deviation of ASAS V magnitude
 102-107  F6.3  mag      Jmag    J magnitude of the adopted counterpart from
                                   the 2MASS catalog
 109-110  I2    ---      N40     Number of 2MASS Jband sources within 40"
                                 from the ASAS source position
 112-116  F5.3  ---      FJc     [1/3] Total J-band flux of all sources counted
                                 in N40 and expressed in units of the Jmag flux
 119-124  F6.3  mag      Jc      Adopted Jc-magnitude of the ASAS object
                                  for color index
 126-130  F5.3  mag      V-Jc    Adopted (V-J) color index (Vmag-Jc)
 132-137  F6.3  ct/s     CRate   Number of counts per second (RBSC data)
 139-143  F5.3  ct/s   e_CRate   Error on counts (RBSC data)
 145-149  F5.2  ---      HR1     [-1/1] Hardness ratio HR1 (0.5-2/0.1-0.4keV)
 151-154  F4.2  ---    e_HR1     Error on HR1 (ROSAT data)
 156-161  F6.2  [mW/m2]  logFb   logarithm of the bolometric flux (ergs/s/cm2)
 163-167  F5.2  [-]      logX/b  logarithm of the X-ray (0.1-2.4keV) to the
                                 bolometric flux ratio
 169-172  F4.2  [-]    e_logX/b  [/0[ Error on logX/b
 174-183  F10.6 d        Per     Adopted variability period
 185-188  F4.2  mag      Vamp    Maximum amplitude of the V band variability
 190-192  A3    ---      Var     Variability type (1)
 194-336  A143  ---      Rem     Remarks (2)
--------------------------------------------------------------------------------
Note (1): Variability type as follows:
    rot = spotted rotator
    ED  = detached binary
    EB  = beta Lyrae type binary
    EC  = contact binary
    msc = miscellaneous
Note (2): here listed are available data on the values of the projected
   rotational velocity (vsini), lithium line equivalent width (EW Li line),
   X-ray variability, known optical variability, possible alternative periods
   (due to aliases or incorrect variability type classification), visual and
   spectroscopic companions. References are explained in the "refs.dat" file.
--------------------------------------------------------------------------------
Byte-by-byte Description of file: refs.dat
--------------------------------------------------------------------------------
   Bytes Format Units   Label     Explanations
--------------------------------------------------------------------------------
   1-  5  A5    ---     Ref       Reference code
   7- 25  A19   ---     BibCode   BibCode
  27- 49  A23   ---     Aut       Author's name
  51- 69  A19   ---     Com       Comments
--------------------------------------------------------------------------------
History:
    Copied at ftp://ftp.astrouw.edu.pl/acta/2013/kir_53
References:
    Kiraga, Paper I    2012AcA....62...67K 2012AcA....62...67K, Cat. J/AcA/62/67
(End)                                      Patricia Vannier [CDS]    15-May-2013