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HD 134 518: A Main‐Sequence Detached or a Semi‐detached Eclipsing Binary?
Author(s) -
Russo G.
Publication year - 1983
Publication title -
astronomische nachrichten
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.394
H-Index - 63
eISSN - 1521-3994
pISSN - 0004-6337
DOI - 10.1002/asna.2113040306
Subject(s) - physics , contact binary , astrophysics , mass ratio , binary number , rr lyrae variable , light curve , analytical chemistry (journal) , binary star , mathematics , chemistry , chromatography , stars , arithmetic , globular cluster
We have analyzed P RZYBYLSKY 's (1981) photometric observations of HD 134518, an eclipsing binary with a period of 1.15 days and a β Lyrae type light curve. Performing a grid of solutions with different assumed values of the mass ratio by means of the W ILSON ‐D EVINNEY method we have determined the photometric elements of this variable, which shows an extremely low mass ratio ( q = m c/ m h = 0.06) and appears as semi‐detached system. The discrepancies between the W ILSON ‐D EVINNEY solution and the W OOD solution (G IURICIN et al. 1982) are pointed out. Die photometrischen Beobachtungen P RZYBYLSKYS (1981) von HD 134 518, einem Bedeckungsveränderlichen mit P = 1 d .15 und einer β‐Lyrae‐artigen Lichtkurve, wurden analysiert. Mittels der W ILSON ‐D EVINNEY ‐Methode wurden für verschiedene Masseverhältnisse die photometrischen Elemente des Veränderlichen bestimmt, der ein extrem niedriges Massenverhältnis ( q = m c/ m h = 0.06) besitzt und halbgetrennt zu sein scheint.
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