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J/AJ/128/1167  ARAUCARIA project : NGC 300 Cepheid Variables. II (Gieren+, 2004)
The Araucaria project: an improved distance to the Sculptor spiral galaxy
NGC 300 from its Cepheid variables.
    Gieren W., Pietrzynski G., Walker A., Bresolin F., Minniti D.,
    Kudritzki R.-P., Udalski A., Soszynski I., Fouque P., Storm J., Bono G.
   <Astron. J., 128, 1167-1176 (2004)>
   =2004AJ....128.1167G
ADC_Keywords: Stars, variable ; Photometry, UBVRI

Keywords: Cepheids - distance scale - galaxies: distances and redshifts -
          galaxies: individual (NGC 300) - galaxies: stellar content

Abstract:
    We present VI data, derive improved periods and mean magnitudes for
    the variables, and construct period-luminosity relations in the V, I,
    and the reddening-independent V-I Wesenheit bands using 58 Cepheid
    variables with periods between 11 and 90 days.

Description:
    The data presented in this paper were collected with the Warsaw 1.3m
    telescope at Las Campanas Observatory and the 4m telescope at CTIO
    (Cerro Tololo Inter-American Observatory). Our observations started on
    2002 October 5 and lasted until 2003 November 11.
Objects:
    ----------------------------------------------------------
       RA   (2000)   DE      Designation(s)
    ----------------------------------------------------------
    00 54 53.5   -37 40 59   NGC 300
    ----------------------------------------------------------

File Summary:

       FileName      Lrecl  Records   Explanations

ReadMe            80        .   This file
table1.dat        89       64   Cepheids in NGC 300
table2.dat        36     3042   Individual New V and I Observations


See also:
 J/AJ/123/789    : ARAUCARIA project: NGC 300 Cepheids (Pietrzynski+, 2002)
 J/MNRAS/350/679 : BV photometry of NGC 300 variables (Mennickent+, 2004)
 J/AJ/128/2815   : ARAUCARIA project: NGC 6822 Cepheids (Pietrzynski+, 2004)


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

   Bytes Format Units   Label      Explanations

   1-  6  A6    ---     [PGF2002]  Cepheid number
   8- 14  F7.3  d       Per        Period
  17- 22  F6.4  [d]     logPer     Log of the period
  24- 34  F11.3 d       T0         Epoch of maximum brightness (in HJD) in V
  36- 41  F6.3  mag     <Vmag>     Mean V magnitude
  44- 49  F6.3  mag     <Imag>     Mean I magnitude
  52- 57  F6.3  mag     <WImag>    Reddening-free V-I Wesenheit magnitude
                                    WI, defined as WI=I-1.55(V-I)
  60- 89  A30   ---     Rem        Remarks


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

   Bytes Format Units   Label       Explanations

   1-  6  A6    ---     [PGF2002]   Cepheid number
       8  A1    ---     Filt        [VI] Filter
  10- 23  F14.6 d       HJD         Heliocentric Julian Date
  25- 30  F6.3  mag     mag         Filter magnitude
  32- 36  F5.3  mag     e_mag       Error in mag


History:
    From electronic version of the journal
(End)                   Greg Schwarz [AAS], Marianne Brouty [CDS]    02-Feb-2005