J/A+A/399/147       JHK photometry of C-cloud IRAS sources       (Massi+, 2003)
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Star formation in the Vela molecular clouds.
V. Young stellar objects and star clusters towards the C-cloud.
    Massi F., Giannini T., Lorenzetti D.
   <Astron. Astrophys. 399, 147 (2003)>
   =2003A&A...399..147M
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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 molecular ridge

Description:
    Results of NIR (JHK) photometry for about 1000 stars in 10 fields
    around IRAS sources previously recognized as related to star forming
    sites in the Vela Molecular Ridge C and D clouds. 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, for IRS 33,
    coordinates are offsets (in arcsec) from source # 4.

File Summary:

       FileName      Lrecl  Records   Explanations

ReadMe            80        .   This file
table5.dat        82      979   JHK photometry of 979 sources


See also:
   J/A+AS/136/471 : JHK photometry of D-cloud IRAS sources (Massi+, 1999)


Byte-by-byte Description of file:  table5.dat

   Bytes Format Units   Label     Explanations

   1-  5  A5    ---     IRS       IRAS source (shortly designated as in Paper)
   7-  9  I3    ---     Seq       Source designation
  12- 13  I2    h       RAh       ? Right ascension (2000)
  15- 16  I2    min     RAm       ? Right ascension (2000)
  18- 22  F5.2  s       RAs       ? Right ascension (2000)
      24  A1    ---     DE-       Declination sign
  25- 26  I2    deg     DEd       ? Declination (2000)
  28- 29  I2    arcmin  DEm       ? Declination (2000)
  31- 34  F4.1  arcsec  DEs       ? Declination (2000)
  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 IRS33 4
                                     for IRS33 sources (3)
  78- 82  F5.1  arcsec  oDE       ? Offset in declination from IRS33 4
                                     for IRS33 sources (3)

Note (1): If unspecified, the magnitude is an upper limit

Note (2): Notes:
      PH: problems in H
      AB: possible saturation in J, H and K bands
      PF: by PSF fitting
      NE: diffuse nebular emission
Note (3): Unfortunately, we could not perform astrometry on field IRS33
    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 4.
    This is RA = 08:59:25.8 DE = -43:26:07 (2000).


Acknowledgements: Fabrizio Massi 


References:
    Liseau et al.,     Paper I.     1992A&A....265..577L
    Lorenzetti et al., Paper II.    1993A&A....275..489L
    Massi et al.,      Paper III.   1999A&AS...136..471M, Cat. J/A+AS/136/471
    Massi et al.,      Paper IV.    2000A&A....353..598M
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(End)                                          Patricia Bauer [CDS]  25-Nov-2002