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J/A+A/340/196 ubvyHbeta photometry of AB Cas (Rodriguez+ 1998)
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The eclipsing binary system AB Cas: binarity and pulsation
Rodriguez E., Claret A., Sedano J.L., Garcia J.M., Garrido R.
<Astron. Astrophys. 340, 196 (1998)>
=1998A&A...340..196R (SIMBAD/NED BibCode)
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ADC_Keywords: Binaries, eclipsing ; Photometry, uvby, beta
Keywords: techniques: photometric - stars: oscillations -
stars: individual: AB Cas - stars: variables: Delta Sct -
stars: binaries: eclipsing
Description:
Table 1 contents 471 simultaneous measurements collected in each of
the four uvby colours of the Stroemgren photometric system for the
eclipsing binary system AB Cas. Because of an instrumental problem, 82
points in the b channel (during the last observational night) had to
be rejected (the corresponding magnitudes are listed as 0.0000). The
data are magnitude differences (Du,Dv,Db,Dy) of the variable star
minus comparison star in the instrumental system versus Heliocentric
Julian Day. Table 2 is the same, but for H{beta} (80 points). The
comparison star is BD+70 0188. The origin in time is the Julian Day
2447117. The observations were carried out (by E. Rodriguez, A.
Claret, J.L. Sedano, J.M. Garcia and R. Garrido) during 1987 and 1988
using the 0.90m telescope at the Sierra Nevada Observatory, Spain.
Objects:
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RA (2000) DE Designation(s)
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02 37 32 +71 18.6 AB Cas
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File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table1.dat 41 471 uvby differential photometry
table2.dat 17 80 H{beta} differential photometry
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Byte-by-byte Description of file: table1.dat
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Bytes Format Units Label Explanations
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2- 9 F8.4 d HJD-2447117 Heliocentric Julian date -2447117
12- 17 F6.4 mag Dumag Differential u magnitude (1)
20- 25 F6.4 mag Dvmag Differential v magnitude (1)
28- 33 F6.4 mag Dbmag Differential b magnitude (1)
36- 41 F6.4 mag Dymag Differential y magnitude (1)
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Note (1): AB Cas - BD+70.0188 differential photometry
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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- 9 F8.4 d HJD-2447117 Heliocentric Julian date -2447117
11- 17 F7.4 mag Hbeta Hbeta index (1)
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Note (1): AB Cas - BD+70.0188 differential photometry
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Acknowledgements: Eloy Rodriguez <eloy@iaa.es>
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(End) Patricia Bauer [CDS] 25-Sep-1998