Access to Astronomical Catalogues

J/A+A/416/111      C stars in Wolf-Lundmark-Melotte galaxy   (Battinelli+, 2004)
Carbon star survey of Local Group galaxies.
X. Wolf-Lundmark-Melotte a galaxy with an extreme C/M ratio.
    Battinelli P., Demers S.
   <Astron. Astrophys., 416, 111-118 (2004)>
   =2004A&A...416..111B
ADC_Keywords: Galaxies, photometry ; Photometry, CCD ; Stars, carbon

Keywords: galaxies: individual: Wold-Lundmark-Melotte -
          galaxies: stellar populations - galaxies: structure

Abstract:
    We used the CFH12K wide field camera to survey the carbon star
    population of the Wolf-Lundmark-Melotte system using the CN-TiO
    technique. 149 C stars are identified with a mean <I≥20.28,
    corresponding to <MI≥-4.65, a mean luminosity similar to what we
    found in other irregular galaxies. Star counts in and around the main
    body of WLM reveal that its stellar distribution is quite elliptical
    (ε=0.58) with major and minor axes of 26' and 11'. Comparison
    of the density profile of C stars and old red giants shows that their
    scale lengths differ by only 15% pointing to mixed populations.
    Wolf-Lundmark-Melotte is found to be unique among dwarf irregular
    galaxies by having essentially a handful of early-type AGB M stars
    thus leading to an extreme C/M ratio.

Description:
    We list the apparent I magnitude, (R-I) and (CN-TiO) colour indices of
    149 carbon stars identified in WLM. The observations were obtained
    with the CFH12K camera attached to the CFHT.

File Summary:

       FileName      Lrecl  Records   Explanations

ReadMe            80        .   This file
table2.dat        80      149   Positions and photometry of 149 C stars


See also:
   J/AJ/119/2780 : C stars in IC 1613 (Albert+, 2000)
   J/AJ/120/1801 : C stars in Pegasus, DDO 210 and Tucana (Battinelli+, 2000)
   J/AJ/123/832  : C star population in NGC 6822 (Letarte+, 2002)
   J/AJ/125/1298 : C star population in outer disk of M31 (Battinelli+, 2003)
   J/A+A/410/795 : Photometry of NGC 3109 carbon stars (Demers+, 2003)
   J/AJ/125/3037 : RI photometry of NGC 205 carbon stars (Demers+, 2003)
   J/A+A/417/479 : RI photometry of NGC 185 carbon stars (Battinelli+, 2004)
   J/A+A/418/33  : RI photometry of C stars in NGC 147 (Battinelli+, 2004)


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

   Bytes Format Units   Label     Explanations

   1-  6  I6    ---     Seq       Running number
   8-  9  I2    h       RAh       Right ascension (J2000.0)
  11- 12  I2    min     RAm       Right ascension (J2000.0)
  14- 18  F5.2  s       RAs       Right ascension (J2000.0)
      21  A1    ---     DE-       Declination sign (J2000.0)
  22- 23  I2    deg     DEd       Declination (J2000.0)
  25- 26  I2    arcmin  DEm       Declination (J2000.0)
  28- 32  F5.2  arcsec  DEs       Declination (J2000.0)
  35- 40  F6.3  mag     Imag      I magnitude (Mould filter)
  43- 48  F6.3  mag     e_Imag    Error on I
  51- 56  F6.3  mag     R-I       R-I colour index
  59- 64  F6.3  mag     e_R-I     Error on R-I
  67- 72  F6.3  mag     CN-TiO    CN-TiO colour index
  75- 80  F6.3  mag     e_CN-TiO  Error on CN-TiO


Acknowledgements: Serge Demers 


References:
   Albert et al.,       Paper I    2000AJ....119.2780A  Cat. J/AJ/119/2780
   Battinelli & Demers, Paper II   2000AJ....120.1801B  Cat. J/AJ/120/1801
   Demers & Battinelli, Paper III  2002AJ....123..832D  Cat. J/AJ/123/832
   Battinelli et al.,   Paper V    2003AJ....125.1298B  Cat. J/AJ/125/1298
   Demers et al.,       Paper VI   2003AJ....125.3037D  Cat. J/AJ/125/3037
   Demers et al.,       Paper VII  2003A&A...410..795D  Cat. J/A+A/410/795
   Battinelli & Demers, Paper IX   2004A&A...417..479B  Cat. J/A+A/417/479
   Battinelli & Demers, Paper VIII 2004A&A...418...33B  Cat. J/A+A/418/33
(End)                                        Patricia Bauer [CDS]    25-Feb-2004