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J/A+A/330/990    VRIJHK photometry of the Serpens cloud core (Giovannetti+ 1998)
Deep optical and near infrared imaging photometry of the Serpens cloud core
       Giovannetti P., Caux E., Nadeau D., Monin J.-L.
      <Astron. Astrophys. 330, 990 (1998)>
      =1998A&A...330..990G      (SIMBAD/NED BibCode)
ADC_Keywords: Clusters, open ; Stars, pre-main sequence ; Photometry, infrared

Keywords: stars: pre-main sequence - ISM: open clusters: Serpens cloud -
          stars: luminosity function - infrared: stars - star formation

Abstract:
    We present results from a deep optical (VRI) and near infrared (JHK)
    survey of the central part of the Serpens molecular cloud. A total of
    138 sources were detected in the 19 arcmin2 surveyed area down to a
    limiting magnitude of 16.3 in K. We find that the form of the observed
    K Luminosity Function (KLF) of stars belonging to the Serpens
    Molecular cloud is consistent with that predicted from a Miller &
    Scalo (1979ApJS...41..513M) Interstellar Mass Function (IMF). We have
    investigated the KLF evolution with the age of a cluster by modeling
    KLFs of hypothetical clusters. Our results suggest that two phases of
    star formation could have taken place in the Serpens core.

File Summary:

       FileName      Lrecl  Records   Explanations

ReadMe            80        .   This file
table2           109      165   Log of observations
table2.tex       123      219   Latex version of table2


Byte-by-byte Description of file: table2

   Bytes Format Units   Label     Explanations

   1-  3  I3    ---     Name      Sequential object number
       4  A1    ---     n_Name    [S] S: Serpens cloud members
   6-  7  I2    h       RAh       Right ascension (1950)
   9- 10  I2    min     RAm       Right ascension (1950)
  12- 15  F4.1  s       RAs       Right ascension (1950)
      16  A1    ---     DE-       Declination sign
  17- 18  I2    deg     DEd       Declination (1950)
  20- 21  I2    arcmin  DEm       Declination (1950)
  23- 24  I2    arcsec  DEs       Declination (1950)
  26- 27  A2    ---     n_Vmag    Note on Vmag (1)
  29- 32  F4.1  mag     Vmag      ? V magnitude
  34- 37  F4.2  mag     e_Vmag    ? 3 σ uncertainty on Vmag
  39- 40  A2    ---     n_Rmag    Note on Rmag (1)
  42- 45  F4.1  mag     Rmag      ? R magnitude
  47- 50  F4.2  mag     e_Rmag    ? 3 σ uncertainty on Rmag
  52- 53  A2    ---     n_Imag    Note on Imag (1)
  55- 58  F4.1  mag     Imag      ? I magnitude
  60- 63  F4.2  mag     e_Imag    ? 3 σ uncertainty on Imag
  65- 66  A2    ---     n_Jmag    Note on Jmag (1)
  68- 71  F4.1  mag     Jmag      ? J magnitude
  73- 76  F4.2  mag     e_Jmag    ? 3 σ uncertainty on Jmag
  78- 79  A2    ---     n_Hmag    Note on Hmag (1)
  81- 84  F4.1  mag     Hmag      ? H magnitude
  86- 89  F4.2  mag     e_Hmag    ? 3 σ uncertainty on Hmag
  91- 92  A2    ---     n_Kmag    Note on Kmag (1)
  94- 97  F4.1  mag     Kmag      ? K magnitude
  99-102  F4.2  mag     e_Kmag    ? 3 σ uncertainty on Kmag
 104-109  A6    ---     Other     Other identification (2)

Note (1):  x: Regions of the sky that were not observed in the concerned
               photometric band
          nd: Sources that were not detected
Note (2): CK: Churchwell and Koornneef (1986ApJ...300..729C)
          EC: Eiroa and Casali (1992A&A...262..468E)
         GEL: Gomez de Castro et al. (1988A&A...201..299G)
         HCE: Horrobin et al. (1997A&A...320L..41H)


Acknowledgements: Philippe Giovannetti 

(End)                                         Patricia Bauer [CDS]   04-Sep-1997