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J/MNRAS/399/1709    Near-infrared survey of Miras            (Matsunaga+, 2009)
A near-infrared survey of Miras and the distance to the Galactic Centre.
    Matsunaga N., Kawadu T., Nishiyama S., Nagayama T., Hatano H., Tamura M.,
    Glass I.S., Nagata T.
   <Mon. Not. R. Astron. Soc., 399, 1709-1729 (2009)>
   =2009MNRAS.399.1709M
ADC_Keywords: Stars, variable ; Photometry, infrared ; Stars, distances

Keywords: stars: AGB and post-AGB - stars: variables: other - dust, extinction -
          Galaxy: centre - Galaxy: structure - infrared: stars

Abstract:
    We report the results of a near-infrared survey for long-period
    variables in a field of view of 20x30arcmin2 towards the Galactic
    Centre (GC). We have detected 1364 variables, of which 348 are
    identified with those reported in Glass et al. (2001. Cat.
    J/MNRAS/321/77). We present a catalogue and photometric measurements
    for the detected variables and discuss their nature.

Description:
    We used the Infrared Survey Facility (IRSF) 1.4m telescope and the
    SIRIUS near-IR camera for our monitoring survey. A large part of the
    data was obtained in 2005 and 2006, while additional data were
    collected between 2001 and 2008.

File Summary:

       FileName      Lrecl  Records   Explanations

ReadMe            80        .   This file
table6.dat        80     1364   Catalogue of variable stars
table9.dat        40      175   Extinctions AKs and distance moduli mu0
                              estimated for Miras
table7.dat        33   116887   Light variations


See also:
 J/MNRAS/321/77 : Large-amplitude variables near Galactic Centre (Glass+, 2001)
         II/295 : Spitzer IRAC survey of the galactic center (Ramirez+, 2008)


Byte-by-byte Description of file: table6.dat

   Bytes Format Units  Label    Explanations

   1-  4  I04   ---    Seq      Sequential number
   6- 21  A16   ---    Name     Name (HHMMSSss+DDMMSSs)
  23- 27  F5.2  mag    Jmag     ?=99.99 J mean magnitude
  29- 32  F4.2  mag    Jamp     ?=0.00 Peak-to-peak amplitude for J magnitude
  34- 38  F5.2  mag    Hmag     ?=99.99 H mean magnitude
  40- 43  F4.2  mag    Hamp     ?=0.00 Peak-to-peak amplitude for H magnitude
  45- 49  F5.2  mag    Ksmag    ?=99.99 Ks mean magnitude
  51- 54  F4.2  mag    Kamp     ?=0.00 Peak-to-peak amplitude for Ks magnitude
      56  I1    ---    f_Jmag   [0/6] Problem on Jmag when non-zero (1)
      57  I1    ---    f_Hmag   [0/6] Problem on Hmag when non-zero (1)
      58  I1    ---    f_Ksmag  [0/6] Problem on Ksmag when non-zero (1)
  60- 66  I7    ---    SSTGC    ? Ramirez et al. (2008, Cat. II/295)
                                  counterpart
  68- 74  A7    ---  [GMC2001]  Glass et al. (G01, 2001. Cat. J/MNRAS/321/77)
                                 counterpart
  76- 78  I3    d      Per      ? Period
      80  I1    ---    f_Per    [0/5] Flag on period (0=OK) (2)

Note (1): Flags on magnitudes as follows:
      0 = The magnitude was obtained without any clear problems
      1 = We did not obtain the magnitude because the object often falls
          out of the field of view
      2 = We did not obtain the magnitude because the object is too bright
      3 = We did not obtain the magnitude because the object is too faint
      4 = We obtained the mean magnitude, but it is affected by its
          location around the edge of the images
      5 = We obtained the mean magnitude, but it is affected by saturation
          or deviation from the linear response
      6 = We obtained the mean magnitude, but it is affected by the fact that 
          the object was not detected in some cases because of its faintness
Note (2): Flag on period as follows:
      0 = PG01 and PIRSF agree with each other to within 0.075dex.
          We adopt PIRSF
      1 = PG01 and PIRSF  disagree and we adopt PIRSF
      2 = PG01 is not given and we adopt PIRSF
      3 = PG01 fit our light curve but PIRSF is not properly obtained.
          We adopt PG01
      4 = PG01 does not fit the IRSF light curve. No periodicity is found
      5 = PG01 is not given and no clear periodicity is found with the
          IRSF data


Byte-by-byte Description of file: table9.dat

   Bytes Format Units   Label     Explanations

   1-  4  I04   ---     Seq       Sequential number of star
   6- 10  F5.2  mag     AHK,Ks    ?=99.99 Extinction A_Ks_ from HK pair of
                                           filter bands (1)
  12- 16  F5.2  mag     muJK0     ?=99.99 Distance moduli from JK pair of
                                           filter bands (2)
  18- 22  F5.2  mag     AJK,Ks    ?=99.99 Extinction A_Ks_ from JK pair of
                                           filter bands (1)
  24- 28  F5.2  mag     muHK0     ?=99.99 Distance moduli from HK pair of
                                           filter bands (2)
  30- 34  F5.2  mag     AJH,Ks    ?=99.99 Extinction A_Ks_ from JH pair of
                                           filter bands (1)
  36- 40  F5.2  mag     muJH0     ?=99.99 Distance moduli from JH pair of
                                           filter bands (2)

Note (1): For example, AHH,Ks= (H-Ks)/(rH-1)-(MH-MKs)/(rH-1),
           rH=1.731
Note (2): For example, muHK0=(rHKs-H)/(rH-1)-(rHMKs-MH)/(rH-1),
           rH=1.731


Byte-by-byte Description of file: table7.dat

   Bytes Format Units   Label     Explanations

   1-  4  I04   ---     Seq       Sequential number of star
   6- 15  F10.4 d       MJD       Modified Julian date
  17- 21  F5.2  mag     Jmag      ?=99.99 J mean magnitude
  23- 27  F5.2  mag     Hmag      ?=99.99 H mean magnitude
  29- 33  F5.2  mag     Ksmag     ?=99.99 Ks mean magnitude


History:
    From electronic version of the journal
(End)                                      Patricia Vannier [CDS]    25-Mar-2010