J/A+AS/136/471      JHK photometry of D-cloud IRAS sources   (Massi+, 1999)
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Star formation in the Vela Molecular Clouds.
III. Near infrared images and mm photometry of D-cloud IRAS sources.
       Massi F., Giannini T., Lorenzetti D., Liseau R., Moneti A., Andreani P.
      <Astron. Astrophys. Suppl. Ser. 136, 471 (1999)>
      =1999A&AS..136..471M      (SIMBAD/NED BibCode)
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ADC_Keywords: Stars, pre-main sequence ; Photometry, infrared

Keywords: stars: formation - stars: pre-main sequence - infrared: stars -
          ISM: individual objects (Vela clouds)

Description:
    Results of NIR (JHK) photometry for about 1300 stars in 12 fields
    around IRAS sources previously identified as Class I sources towards
    the Vela Molecular Ridge D-cloud. Only objects at least detected in
    the K band are listed. IRAS sources are indicated by the short
    designation adopted in the Paper (# IRS). Due to the presence of bad
    pixels or because of the closeness to the image edge, photometry could
    not be performed on a few objects and in such cases magnitudes and
    errors are not given at all. Note that as for IRS 13, coordinates are
    offsets (in arcsec) from source # 29.

File Summary:

       FileName      Lrecl  Records   Explanations

ReadMe            80        .   This file
table4.dat        82     1325   JHK of about 1300 sources


Byte-by-byte Description of file:  table4.dat

   Bytes Format Units   Label     Explanations

   1-  5  A5    ---     IRS       IRAS source (shortly designated as in Paper)
   7-  9  I3    ---     ID        Source designation
  12- 13  I2    h       RAh       ? Right ascension (B1950)
  15- 16  I2    min     RAm       ? Right ascension (B1950)
  18- 22  F5.2  s       RAs       ? Right ascension (B1950)
      24  A1    ---     DE-       Declination sign
  25- 26  I2    deg     DEd       ? Declination (B1950)
  28- 29  I2    arcmin  DEm       ? Declination (B1950)
  31- 34  F4.1  arcsec  DEs       ? Declination (B1950)
  36- 40  F5.2  mag     Jmag      ? J (1.24um) magnitude
  42- 45  F4.2  mag     e_Jmag    ? Photometric error on Jmag (1)
  47- 51  F5.2  mag     Hmag      ? H (1.63um) magnitude
  53- 56  F4.2  mag     e_Hmag    ? Photometric error on Hmag (1)
  58- 62  F5.2  mag     Kmag      ? K (2.19um) magnitude
  64- 67  F4.2  mag     e_Kmag    ? Photometric error on Kmag
  69- 70  A2    ---     Notes     ? Notes (2)
  72- 76  F5.1  arcsec  oRA       ? Offset in right ascension from IRS13 29
                                     for IRS13 sources (3)
  78- 82  F5.1  arcsec  oDE       ? Offset in declination from IRS13 29
                                     for IRS13 sources (3)

Note (1):
     If unspecified, the magnitude is an upper limit
Note (2):
     IN: integrated brightness of nebular emission
     BN: possible blob of nebular emission
     KS: possible saturation in K band
     JH: possible saturation in J and H bands
     AB: possible saturation in J, H and K bands
Note (3):
    Unfortunately, we could not perform astrometry on field IRS13 since
    there are too few NIR sources with visible counterparts whose
    positions are listed in the GSC. Hence, we were forced to assign
    offsets from a reference objects.

    The position of the centre of the IRAS uncertainty ellipse, which,
    although probably near it, does not correspond to that of source 29.
    This is RA = 08:37:31.8 DE = -41:09:14 (1950).


Acknowledgements: Fabrizio Massi 


References:
    Liseau et al.,     Paper I.     1992A&A...265..577L
    Lorenzetti et al., Paper II.    1993A&A...275..489L
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(End)                                        Patricia Bauer  [CDS]   06-Apr-1999