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Titlebook: Close Binaries in the 21st Century: New Opportunities and Challenges; àlvaro Giménez,Edward Guinan,Slavek Rucinski Book 2006 Springer Scie

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樓主: GURU
11#
發(fā)表于 2025-3-23 12:01:25 | 只看該作者
Sowmya Puttaraju,Tony Brian D’souzaew absolute dimensions of the system were calculated using the results of the light-curve analysis. Period variation of the system was also investigated. Several new times of minima have been secured for this problematic system. An apsidal motion with a period of 80.7 years was confirmed and a third
12#
發(fā)表于 2025-3-23 16:59:37 | 只看該作者
https://doi.org/10.1007/978-3-031-52011-2lected from the literature. The character of the (.) diagram can be approximated with a cyclic variation superimposed on a quadratic variation. The quadratic variation can be explained in terms of mass exchange/loss mechanism in the system, while the cyclic variation could be attributed to the light
13#
發(fā)表于 2025-3-23 19:48:55 | 只看該作者
14#
發(fā)表于 2025-3-23 22:10:31 | 只看該作者
Scham — ein menschliches Gefühlof 12 years were analyzed with a Wilson-Devinney-based solution code. Setting off from a set of parameters derived from spectroscopic investigations a consistent photometric solution was achieved. In accordance with the spectroscopic findings the eccentricity was determined as . = 0.128 and the apsi
15#
發(fā)表于 2025-3-24 03:58:41 | 只看該作者
Hermann Geissbühler,Willi Nafzgeral smaller telescopes located at various places in the CESE region. Preliminary results, based on a pilot study started in 2001, about radial velocity and light curve variations of the active WUMa system LS Del are presented here.
16#
發(fā)表于 2025-3-24 07:39:44 | 只看該作者
17#
發(fā)表于 2025-3-24 14:44:06 | 只看該作者
Rolf Kühn,Michael Raub,Michael Titzee-type stellar components (HD 82159 (BD +11 2052 A); HIP 63322 (BD +39 2587); HD 160934 (RE J1738 +611); HD 89959 (BD +41 2078); HD 143705 (BD +29 2752); HD 138157 (OX Ser)). The orbital solution has been obtained using precise radial velocities determined by cross-correlation with radial velocity s
18#
發(fā)表于 2025-3-24 15:28:56 | 只看該作者
19#
發(fā)表于 2025-3-24 21:37:54 | 只看該作者
https://doi.org/10.1007/978-3-663-02904-5 at the Ankara University Observatory. Among the systems of our observing list are CK Boo, V502 Oph and V836 Cyg that show long-term secular variations in their orbital periods. We use classical O-C diagram analysis technique as a tool to reveal the character of the period variations of these binary
20#
發(fā)表于 2025-3-25 01:14:08 | 只看該作者
https://doi.org/10.1007/978-3-662-29772-8are inclined to each other by more than about 39°deg (sin. √2/5). Such an inclination can induce ‘Kozai cycles’ (.), in which the eccentricity of the inner orbit cycles by a large amount while its period and therefore semimajor axis remains roughly constant. During those periastra when the eccentric
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