J/A+A/367/297 Hipparcos variable stars (Adelman+, 2001)
Hipparcos photometry: The least variable stars.
Adelman S.J.
<Astron. Astrophys. 367, 297 (2001)>
=2001A&A...367..297A 2001A&A...367..297A
ADC_Keywords: Stars, variable ; Magnitudes
Keywords: stars: activity - stars: general - stars: statistics -
techniques: photometric
Abstract:
The data known as the Hipparcos Photometry obtained with the Hipparcos
satellite have been investigated to find those stars which are least
variable. Such stars are excellent candidates to serve as standards
for photometric systems. Their spectral types suggest in which parts
of the HR diagrams stars are most constant. In some cases these values
strongly indicate that previous ground based studies claiming
photometric variability are incorrect or that the level of stellar
activity has changed.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table2.dat 78 681 Individual stars with amplitudes of 0.01 mag
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See also:
I/239 : The Hipparcos and Tycho Catalogues (ESA 1997)
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Byte-by-byte Description of file: table2.dat
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Bytes Format Units Label Explanations
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2- 7 I6 --- HIP Hipparcos Number (Cat. I/239)
11- 13 I3 --- o_HIP Number of Accepted Transits
17- 22 F6.4 mag Hpmag Hipparcos Mean Magnitude
26- 31 F6.4 mag e_Hpmag Standard Error
36- 41 I6 --- HD HD Number (Cat. III/135)
45- 58 A14 --- SpType Spectral Type
59- 80 A22 --- Oname Name, and notes about variability (1)
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Note (1): The variability classes are:
ACV = α2 CVn variable
ACV:* = incorrectly classified as an α2 CVn variable, non-variable
BCEP = β Cepheid variable
CEP = Cepheid variable
MV = microvariable
SR = semi-regular variable
SV = spurious variability due to duplicity
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Acknowledgements: Saul J. Adelman
(End) Patricia Bauer [CDS] 07-Feb-2001