J/A+A/389/931 uvby photometry & radial velocities of R 81 (Tubbesing+, 2002)
The eclipsing hypergiant R 81 (B2.5Ia-O) in the Large Magellanic Cloud.
System properties from spectroscopic and photometric monitoring.
Tubbesing S., Kaufer A., Stahl O., Wolf B., Schmid H.M., Korn A.J.,
Maintz M., Rivinius T., Szeifert T., Arentoft T., Sterken C.
<Astron. Astrophys. 389, 931 (2002)>
=2002A&A...389..931T 2002A&A...389..931T
ADC_Keywords: Binaries, eclipsing ; Radial velocities ; Photometry, uvby
Keywords: stars: individual: R 81 - stars: binaries: eclipsing -
stars: early-type - stars: winds, outflows - stars: supergiants -
stars: emission-line, Be
Description:
File table1.dat contains the photometric uvby data of the eclipsing
binary hypergiant R81 (B2.5 Ia-O) of the Large Magellanic Cloud. The
data have been obtained with the Danish 50 cm telescope at ESO, La
Silla, and cover more than one orbital cycle of 74.59 days.
File table2.dat contains radial velocity measurements of photospheric
lines of this star. The spectra have been obtained simultaneously with
the photometry. The Feros spectrograph at the ESO 1.52m telescope was
used. The quoted radial velocities are averages over the best
photospheric lines.
Objects:
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RA (2000) DE Designation(s)
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05 10 22.8 -68 46 24 R 81 = HD 269128
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File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table1.dat 37 86 Photometric uvby data
table2.dat 18 78 Radial velocity measurements
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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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1- 11 F11.3 d Date Julian Date of Observation
13- 18 F6.3 mag ymag Stroemgren y magnitude
20- 24 F5.3 mag b-y Stroemgren b-y colour
26- 30 F5.3 mag m1 Stroemgren m1 colour
32- 37 F6.3 mag c1 Stroemgren c1 colour
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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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1- 11 F11.3 d Date Julian Date of Observation
14- 18 F5.1 km/s HRV Heliocentric radial velocity
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Acknowledgements: Otmar Stahl
(End) Patricia Bauer [CDS] 06-Jun-2002