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PG 1316+678: A young pre-cataclysmic binary with weak reflection effects
Authors
Bikmaev I.
Borisov N.
+5 more
Irtuganov E.
Sakhibullin N.
Shimanskaya N.
Shimansky V.
Spiridonova O.
Publication date
1 January 2013
Publisher
Abstract
The PG 1316+678 star is classified as a pre-cataclysmic binary, as is evidenced by its photometric and spectroscopic observations. Its orbital period is determined to be Porb = 3. 3803d, which coincides with the photometric period. The intensities of the emission HI and HeI lines are shown to vary synchronously with the brightness of the object (ΔmV = 0. 065m, ΔmR = 0. 08m). These variations arise as the UV radiation from the DAO white dwarf is reflected from the surface of the cold companion. The parameters of the binary are estimated and the time of its evolution after the common-envelope phase is determined to be t ≈ 240 000 years. Thus, PG 1316+678 is a young pre-cataclysmic NN Ser variable with the smallest known photometric reflection effect. © 2013 Pleiades Publishing, Ltd
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Kazan Federal University Digital Repository
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oai:dspace.kpfu.ru:net/138032
Last time updated on 07/05/2019
Kazan Federal University Digital Repository
See this paper in CORE
Go to the repository landing page
Download from data provider
oai:dspace.kpfu.ru:net/97607
Last time updated on 07/05/2019