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J/AJ/120/1801       C stars in Pegasus, DDO 210 and Tucana   (Battinelli+, 2000)
A carbon star survey of the Local Group dwarf galaxies.
II. Pegasus, DDO 210, and Tucana.
    Battinelli P., Demers S.
   <Astron. J. 120, 1801 (2000)>
   =2000AJ....120.1801B
ADC_Keywords: Stars, carbon ; Photometry, Cousins ; Photometry, CCD

Keywords: galaxies: individual (DDO 210, Pegasus, Tucana) -
          galaxies: stellar content - stars: carbon

Abstract:
    We present the latest results of our ongoing four-filter photometric
    survey of C stars in Local Group dwarf irregular galaxies.
    Observations of the two low-luminosity dwarf irregular galaxies,
    Pegasus and DDO 210, revealed 40 and three C stars, respectively,
    assuming that the reddening of Pegasus is negligible. No C stars were
    identified in Tucana. Our observations permit the estimation of the
    color-magnitude diagram contamination by foreground M dwarfs thus
    yielding reliable C/M ratios. Our R and I photometry of the C stars
    cannot be used to solve the extinction controversy toward Pegasus. The
    three C stars in DDO 210 are quite bright when compared with C star
    populations in other dwarf galaxies. A larger, fainter population in
    that galaxy seems improbable, however. The statistics of C stars
    currently on hand for dwarf galaxies show a well-defined trend with
    the absolute magnitude of dwarf galaxies.

Description:
    The observations presented in this paper were obtained at the Cerro
    Tololo Inter-American Observatory's (CTIO) 1.5m telescope with a
    2048x2048 Tek CCD during a five night run in 1999 August.

File Summary:

       FileName      Lrecl  Records   Explanations

ReadMe            80        .   This file
table4.dat        64       40   C stars in Pegasus
table5.dat        64        3   C stars in DDO 210


See also:
     J/AJ/119/2780 : C stars in IC 1613 (Albert+, 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/416/111 : C stars in Wolf-Lundmark-Melotte galaxy (Battinelli+, 2004)
     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: table4.dat table5.dat

   Bytes Format Units     Label     Explanations

   1-  3  A3    ---       Seq       Sequential number (CNN) (1)
   5-  6  I2    h         RAh       Right ascension (J2000)
   8-  9  I2    min       RAm       Right ascension (J2000)
  11- 15  F5.2  s         RAs       Right ascension (J2000)
      17  A1    ---       DE-       Declination sign (J2000)
  18- 19  I2    deg       DEd       Declination (J2000)
  21- 22  I2    arcmin    DEm       Declination (J2000)
  24- 27  F4.1  arcsec    DEs       Declination (J2000)
  29- 34  F6.3  mag       Icmag     Kron-Cousin I magnitude
  36- 40  F5.3  mag       e_Icmag   rms uncertainty on Imag
  42- 46  F5.3  mag       Rc-Ic     Kron-Cousin R-I colour index
  48- 52  F5.3  mag       e_Rc-Ic   rms uncertainty on R-I
  54- 58  F5.3  mag       CN-TiO    CN-TiO index
  60- 64  F5.3  mag       e_CN-TiO  rms uncertainty on CN-TiO

Note (1): Simbad nomenclature:
           Table 4: [BD2000] Pegasus CNN
           Table 5: [BD2000] DDO 210 CNN


History:
    From electronic version of the journal

References:
    Albert et al.,       Paper I    2000AJ....119.2780A  Cat. J/AJ/119/2780
    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 VIII 2004A&A...418...33B  Cat. J/A+A/418/33
    Battinelli & Demers, Paper IX   2004A&A...417..479B  Cat. J/A+A/417/479
    Battinelli & Demers, Paper X    2004A&A...416..111B  Cat. J/A+A/416/111
(End)                                        Patricia Bauer [CDS]    10-Jun-2003