J/A+A/383/398 Cepheids multiphotometry (Paturel+, 2002)
Calibration of the distance scale from galactic Cepheids:
I. Calibration based on the GFG sample.
Paturel G., Theureau G., Fouque P., Terry J.N., Musella I., Ekholm T.
<Astron. Astrophys. 383, 398 (2002)>
=2002A&A...383..398P 2002A&A...383..398P
ADC_Keywords: Stars, variable; Photometry, UBVRIJKLMNH
Keywords: galaxies: distances and redshift - galaxies: stellar content -
cosmology: distance scale
Abstract:
New estimates of the distances of 36 nearby galaxies are presented
based on accurate distances of galactic Cepheids obtained by Gieren
et al. (1998ApJ...496...17G 1998ApJ...496...17G) from the geometrical Barnes-Evans method.
The concept of ``sosie'' is applied to extend the distance
determination to extragalactic Cepheids without assuming the
linearity of the PL relation. Doing so, the distance moduli are
obtained in a straightforward way. The correction for extinction is
made using two photometric bands (V and I) according to the
principles introduced by Freedman & Madore (1990ApJ...365..186F 1990ApJ...365..186F).
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table3.dat 35 1840 Cepheids V and I magnitudes
appendix.dat 59 6040 All raw data of the Cepheid database
refs.dat 83 70 References
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See also:
V/48 : A catalogue of field type II Cepheids (Harris, 1985)
J/A+AS/108/9 : Cepheids fundamental parameters I. (Bersier+, 1994)
J/A+AS/108/25 : Cepheids fundamental parameters II. (Bersier+, 1994)
J/A+AS/143/211 : Galactic Cepheids BVRI photometry (Berdnikov+, 2000)
Byte-by-byte Description of file: table3.dat
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Bytes Format Units Label Explanations
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1- 8 A8 --- Gal Name of the host galaxy
10- 17 A8 --- Star Name of the Cepheid
19- 23 F5.3 [d] logPer log of the period
25- 29 F5.2 mag Vmag Mean V magnitude
31- 35 F5.2 mag Imag Mean I magnitude
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Byte-by-byte Description of file: appendix.dat
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Bytes Format Units Label Explanations
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1- 8 A8 --- Gal Name of the host galaxy
10- 17 A8 --- Star Name of the Cepheid
18- 22 A5 --- r_Star Code for the bibliographic reference
for the Cepheid name, in refs.dat file
25- 30 F6.4 [d] logPer log of the period
31 A1 --- u_logPer Uncertainty flag on logPer
34- 35 A2 --- LC Classification of the light curve
according to the lines following (1)
37- 38 I2 --- Nobs Number of observations for this star
40- 41 A2 --- Band Photometric band for magnitude (2)
43- 47 F5.2 mag mag Magnitude (individual observation) (2)
48 A1 --- u_mag Uncertainty flag on mag
50- 52 A3 --- f_mag Class of magnitude (3)
55- 59 A5 --- r_mag Reference of measurement in refs.dat file
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Note (1): Light curve classification, from Lanoix et al., 1999AN....320...21L 1999AN....320...21L:
N : Normal
S : Symetrical (but high amplitude)
B : Bumpy
B+ : Scattered or very bumpy
O : Overtone
O- : Low amplitude (but asymmetrical or with high period)
P : Peculiar
Note (2): Magnitudes from Lanoix et al., 1999AN....320...21L 1999AN....320...21L:
B (440nm), V (550nm), r (650nm), R (700nm), i (820nm), I (900nm),
IV (1050nm), J (1250nm), H (1650nm), K (2200nm) and g (5000nm)
Note (3): Class of magnitude, from Lanoix et al., 1999AN....320...21L 1999AN....320...21L:
ave: Average of minimum and maximum
max: Maximum
mea: Intensity averaged (based on curve area)
min: Minimum
'blank': Single measurement
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Byte-by-byte Description of file: refs.dat
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Bytes Format Units Label Explanations
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1- 5 A5 --- Ref Reference code
8- 26 A19 --- BibCode BibCode
29- 48 A20 --- Aut Author's name
50- 83 A34 --- Com Comments
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Acknowledgements: Georges Paturel
(End) Patricia Bauer [CDS] 21-Jan-2002