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J/A+A/350/883       R CrA ISOCAM observations                (Olofsson+, 1999)
ISOCAM observations of the R CrA star formation region.
    Olofsson G., Huldtgren M., Kaas A.A., Bontemps S., Nordh L., Abergel A.,
    Andre P., Boulanger F., Burgdorf M., Casali M.M., Cesarsky C.J., Davies J.,
    Falgarone E., Montmerle T., Perault M., Persi P., Prusti T., Puget J.L.,
    Sibille F.
   <Astron. Astrophys. 350, 883 (1999)>
   =1999A&A...350..883O
ADC_Keywords: Associations, stellar ; Stars, pre-main sequence ;
              Infrared sources
Keywords: stars: formation - stars: fundamental parameters - stars: low-mass,
          brown dwarfs - stars: luminosity function, mass function -
          stars: pre-main sequence - infrared: stars

Abstract:
    The results of an ISOCAM survey of the R CrA star formation region are
    presented. The survey was carried out in two broad-band filters,
    LW2 (5-8.5µm) and LW3 (12-18µm). Although it was not possible to
    map the densest, central region due to saturation problems, 21 sources
    were identified which showed mid-IR excesses. Most of these sources
    have not previously been recognised as YSOs (Young Stellar Objects),
    mainly because they are relatively faint. We find evidence for a
    population of very low mass stars which are probably brown dwarfs in
    their early contraction phases.

File Summary:

       FileName      Lrecl  Records   Explanations

ReadMe            80        .   This file
table1.dat        64       21   ISOCAM sources with mid-IR excesses
table2.dat        64        5   YSOs without detected mid-IR excesses
table12.tex       75      104   LaTeX version of tables 1 & 2
list.dat          40      235   Full list of identified ISOCAM sources


See also:
     J/ApJ/397/520 : IRAS observations in Cr A (Wilking+, 1992)
     J/A+A/357/219 : Cha I ISOCAM observations (Persi+, 2000)


Byte-by-byte Description of file: table1.dat table2.dat

   Bytes Format Units   Label           Explanations

   1-  3  I3    ---     ISO-CrA         Sequential number
   5-  6  I2    h       RAh             Right ascension (1950)
   8-  9  I2    min     RAm             Right ascension (1950)
  11- 14  F4.1  s       RAs             Right ascension (1950)
      16  A1    ---     DE-             Declination sign (1950)
  17- 18  I2    deg     DEd             Declination (1950)
  20- 21  I2    arcmin  DEm             Declination (1950)
  23- 24  I2    arcsec  DEs             Declination (1950)
  26- 31  F6.4  Jy      F(6.7)          Flux at 6.7µm
  33- 38  F6.4  Jy      F(14.3)         ? Flux at 14.3µm
  40- 43  F4.2  ---     F(14.3)/F(6.7)  ? F(14.3)/F(6.7) ratio
  45- 64  A20   ---     Source          Source identification (1)

Note (1): Source identification:
        GP: sources observed by Glass & Penston (1975MNRAS.172..227G)
       VSS: sources observed by Vrba, Strom & Strom (1976AJ.....81..317V)
         R: sources observed by Patter (1998ASPC..154.1755P)
       IRS: sources observed by Taylor & Storey (1984MNRAS.209p...5T)
  Hα: sources observed by Marraco & Ryngren (1981AJ.....86...62M)
     W97-1: source in table 1 in Wilking et al. (1997AJ....114.2029W)
     W97-2: source table2 in Wilking et al. (1997AJ....114.2029W)
      iras: sources Rin Wilking et al. (1992, Cat. J/ApJ/397/520)


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

   Bytes Format Units   Label     Explanations

       1  I1    ---     T         [1/2]? If the object is in tables 1 or 2,
                                          number of that table
   3-  5  I3    ---     ISO-CrA   Sequential number of the source
   7-  8  I2    h       RAh       Right ascension (1950)
  10- 11  I2    min     RAm       Right ascension (1950)
  13- 16  F4.1  s       RAs       Right ascension (1950)
      18  A1    ---     DE-       Declination sign (1950)
  19- 20  I2    deg     DEd       Declination (1950)
  22- 23  I2    arcmin  DEm       Declination (1950)
  25- 26  I2    arcsec  DEs       Declination (1950)
  28- 33  F6.4  Jy      LW2       ? LW2 (5-8.5µm) filter magnitude
  35- 40  F6.4  Jy      LW3       ? LW3 (12-18µm) filter magnitude


Acknowledgements: Goran Olofsson 

(End)                                        Patricia Bauer [CDS]    30-Aug-2000