J/A+A/395/885 Radial velocities of HD 553 (Duemmler+, 2002)
The radial velocities and physical parameters of HD 553.
Duemmler R., Iliev I.Kh., Iliev L.
<Astron. Astrophys. 395, 885 (2002)>
=2002A&A...395..885D 2002A&A...395..885D
ADC_Keywords: Binaries, eclipsing ; Binaries, spectroscopic ; Radial velocities
Keywords: stars: individual: HD 553 - binaries: spectroscopic -
binaries: eclipsing - stars: late-type - stars: starspots -
techniques: radial velocities
Abstract:
HD 553 was discovered as an eclipsing binary by Hipparcos. Here, we
present the first radial velocity curve for this system. It is found,
that HD 553 is a double-lined spectroscopic binary. Despite the large
luminosity difference, the two components of this system are of very
similar mass. The primary, a K0-giant, fills a large fraction of its
Roche-lobe. The secondary is, despite its very similar mass, still a
late-type dwarf. The radial velocity curve allows to constrain several
stellar and system parameters.
Objects:
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RA (2000) DE Designation(s)
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00 10 10.5 +64 38 48 HD 553 = HIP 834 = V741 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 46 20 Radial velocities measurements of HD 553
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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- 12 F12.4 --- HJD Heliocentric Julian date at mid-exposure
14- 16 I3 nm Lam Approximate centre of the spectral region
18- 20 I3 --- SNR Signal-to-noise ratio of the spectrum
22- 28 F7.2 km/s HRV1 Heliocentric radial velocity of the primary
30- 33 F4.2 km/s e_HRV1 rms uncertainty on RV1
35- 41 F7.2 km/s HRV2 ? Heliocentric radial velocity of the secondary
43- 46 F4.2 km/s e_HRV2 ? rms uncertainty on RV2
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Acknowledgements: L. Iliev
(End) Patricia Bauer [CDS] 19-Nov-2002