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Browsing by Subject "Eclipsing binaries"

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The long-term binary system VV Cep

Pollmann, E; Bennett, Philip Desmond, 1952-; Hopkins, J. L. (Konkoly Observatory, 2016-01-16)

VV Cep is an eclipsing binary with a period of about 20.4 years that is comprised of an M2Iab primary star and an early B secondary star. A preliminary orbit was announced in 1933 by Harper & Christie (1936), and McLaughlin ...
MOST photometry and DDO spectroscopy of the eclipsing (white dwarf + red dwarf) binary V471 Tau

Guenther, David B.; Kaminski, Krzysztof Z.; Rucinski, Slavek M.; Matthews, Jaymie M.; Kuschnig, Rainer; Rowe, Jason F.; Moffat, Anthony F. J.; Sasselov, Dimitar; Walker, Gordon A. H.; Weiss, Werner W. (American Astronomical Society, 2007-09)

The Hyades K2 V + WD system 471 Tau is a prototype post-common envelope system and a likely cataclysmic binary progenitor. We present 10 days of nearly continuous optical photometry by the MOST (Microvariability and ...
Mu Eridani from MOST and from the ground: an orbit, the SPB component’s fundamental parameters and the SPB frequencies

Jerzykiewicz, M.; Lehmann, H.; Niemczura, E.; Molenda- Zakowicz, J.; Dymitrov, W.; Fagas, M.; Guenther, David B.; Hartmann, M.; Hrudkova, M.; Kaminski, K.; Weiss, Werner W. (Oxford University Press, 2013-06)

MOST time series photometry of μ Eri, an SB1 eclipsing binary with a rapidly rotating SPB primary, is reported and analysed. The analysis yields a number of sinusoidal terms, mainly due to the intrinsic ...
Orbitally modulated photoexcited Si I emission in the eclipsing composite-spectrum binary [zeta] Aurigae

Harper, G. M.; Griffin, R. E. M.; Bennett, Philip Desmond, 1952-; O'Riain, N. (Oxford University Press, 2016-02-21)

We examine the little-known phenomenon of orbitally modulated Si I emission at [lambda] 3905.523 [angstrom] and [lambda] 4102.936 [angstrom] in composite-spectrum binaries, with specific reference to [zeta] Aurigae (K4 Ib ...
Spectral and photometric analysis of the eclipsing binary [epsilon] Aurigae prior to and during the 2009–2011 eclipse

Chadima, P.; Harmanec, P.; Bennett, Philip Desmond, 1952-; Kloppenborg, B.; Stencel, R.; Yang, S.; Bozic, H.; Slechta, M.; Kotkova, L.; Wolf, M. (EDP Sciences, 2011-06)

A series of 353 red electronic spectra (from three observatories, mostly from 6300 to 6700 A) obtained between 1994 and 2010, and of 171 UBV photometric observations (from two observatories) of the 2010 eclipse, were ...
xi Tauri: a unique laboratory to study the dynamic interaction in a compact hierarchical quadruple system

Nemravova, J. A.; Harmanec, P.; Broz, M.; Vokrouhlicky, D.; Mourard, D.; Hummel, C. A.; Cameron, C.; Matthews, J. M.; Bolton, C. T.; Borzic, H.; Guenther, David B. (EDP Sciences, 2016-10)

Context. Compact hierarchical systems are important because the effects caused by the dynamical interaction among its members occur on a human timescale. These interactions play a role in the formation of close binaries ...