Zobrazeno 1 - 10
of 442
pro vyhledávání: '"S-B Qian"'
Autor:
S.-B. Qian, L.-Y. Zhu, F.-X. Li, L.-J. Li, Z.-T. Han, J.-J. He, L. Zang, L.-F. Chang, Q.-B. Sun, M.-Y. Li, H.-T. Zhang, F.-Z. Yan
Publikováno v:
The Astrophysical Journal, Vol 972, Iss 1, p 13 (2024)
KV Vel is a noneclipsing short-period ( P = 0.3571 days) close binary containing a very hot subdwarf primary (77,000 K) and a cool low-mass secondary star (3400 K) that is located at the center of the planetary nebula DS 1. The changes in the orbital
Externí odkaz:
https://doaj.org/article/4d84e69a65e24adc9c03846f7efb12d7
Publikováno v:
The Astronomical Journal, Vol 167, Iss 5, p 215 (2024)
V583 Lyr is an extremely low-mass-ratio Algol-type binary with an orbital period of 11.2580 days. We determined an effective temperature of T _eff1 = 9000 ± 350 K from newly observed spectra, which might be an underestimate due to binary mass transf
Externí odkaz:
https://doaj.org/article/ffa3f26b21324e8bad996e47ea4b7f46
Publikováno v:
The Astronomical Journal, Vol 165, Iss 6, p 259 (2023)
High-precision light curves were extracted from TESScut images. Together with APOGEE and LAMOST medium-resolution spectra, a joint study was made for six early K-type contact binary candidates selected unbiasedly with orbital periods around 0.268 day
Externí odkaz:
https://doaj.org/article/0b900a336ce2400d9952cadb23ee4b2c
Autor:
Z.-T Han, S.-B Qian, Q.-W Han, L. Zang, B. Soonthornthum, L.-J Li, L.-Y. Zhu, W. Liu, E. Fernández Lajús, Z.-B Dai, W.-W Na
Publikováno v:
The Astrophysical Journal, Vol 953, Iss 1, p 63 (2023)
We present a timing study of the short-period eclipsing cataclysmic variable (CV) HT Cas. Based on new eclipse times derived from our photometric monitoring and archival optical data, combined with historical timings, spanning ∼42 yr, we detect a s
Externí odkaz:
https://doaj.org/article/139ff9272a524258a06244d18da24a88
Publikováno v:
The Astronomical Journal, Vol 166, Iss 3, p 83 (2023)
Noting the weakest modulation and relatively high metal abundance of the ab-type RR Lyrae star V838 Cyg, we collected the photometric data of this star from several sky surveys to carry out an in-depth analysis. The O − C diagram shows that the pul
Externí odkaz:
https://doaj.org/article/fab015e009d542b98ece3a09c53936d1
Publikováno v:
Monthly Notices of the Royal Astronomical Society. 514:1206-1216
V375 Cassiopeia (V375 Cas) is an early B-type close binary with an orbital period of 1.4734273 d. Based on high-quality and continuous light curves from the Transiting Exoplanet Survey Satellite (TESS) and new low-resolution spectra, we have determin
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::22837e8d31b7149b793abf304560a424
https://doi.org/10.1093/mnras/stac1327
https://doi.org/10.1093/mnras/stac1327
Publikováno v:
In New Astronomy October 2016 48:12-15
Publikováno v:
In New Astronomy August 2016 47:3-6
V606 Centauri (V606 Cen) is an early B-type close binary with an orbital period of 1.4950935 days, and its complete light curves are very difficult to observe on the ground. By analyzing the continuous light curve obtained by TESS, we found that it i
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9e951b4683a53fd19459eb98a42aeaa7
http://arxiv.org/abs/2304.00297
http://arxiv.org/abs/2304.00297
Akademický článek
Tento výsledek nelze pro nepřihlášené uživatele zobrazit.
K zobrazení výsledku je třeba se přihlásit.
K zobrazení výsledku je třeba se přihlásit.