Zobrazeno 1 - 10
of 149
pro vyhledávání: '"W UMa"'
Autor:
Xu-Dong Zhang
Publikováno v:
Scientific Reports, Vol 14, Iss 1, Pp 1-7 (2024)
Abstract A model is developed to establish the relationship between the critical gyration radius k of the primary component and the mass ratio (q) by considering the different dimensionless gyration radii of main-sequence stars with varying masses. T
Externí odkaz:
https://doaj.org/article/b802d1ece95f409088fb6234edbdc0ab
Autor:
Alenazi Moqbil S., Elkhateeb Magdy M.
Publikováno v:
Open Astronomy, Vol 33, Iss 1, Pp 621-02 (2024)
Photometric study and light curve modeling for the systems V0876 Lyr, V3660 Oph, and V0988 Mon were carried out by means of their first charge-coupled device observations and the Wilson–Devinney code based on model atmospheres by Kurucz (1993. In:
Externí odkaz:
https://doaj.org/article/3e039ff5416c45399fe12c4b7f213e6e
Publikováno v:
Scientific Reports, Vol 14, Iss 1, Pp 1-13 (2024)
Abstract We present the physical and orbital parameters of four short-period eclipsing W UMa systems: $$ZTFJ000030.44 +391106.9$$ Z T F J 000030.44 + 391106.9 (referred to as S1), $$ZTFJ000817.08+402532.1$$ Z T F J 000817.08 + 402532.1 (referred to a
Externí odkaz:
https://doaj.org/article/a8050b8df3d24aba95cbe201c7d48746
Akademický článek
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Akademický článek
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Publikováno v:
Zanco Journal of Pure and Applied Sciences, Vol 35, Iss 3 (2023)
In this research, the short period binary system named (SW Lac) have been chosen to be analyzed with U,B and V light curves with the PHOEBE program .The geometrical and physical parameters have been obtained and compared with previous results of pape
Externí odkaz:
https://doaj.org/article/e759cf6daa824a44b772083d6415a4fb
Akademický článek
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Autor:
P. G. Niarchos, H. W. Dnerbeck
Publikováno v:
Odessa Astronomical Publications, Vol 10, Iss 0, Pp 37-40 (2017)
The discrepancy between the photometric and spectroscopic mass-ratio in W UMa-type systems is examined by using all the available mass-ratio data derived by modern techniques from photoelectric and radial velocity curves. The new additional data conf
Externí odkaz:
https://doaj.org/article/4a1b82f462d14646a7c3fe3403310a9b
Publikováno v:
Journal of Astronomy and Space Sciences, Vol 33, Iss 3, Pp 185-196 (2016)
New multiband BVRI light curves of NSVS 1461538 were obtained as a byproduct during the photometric observations of our program star PV Cas for three years from 2011 to 2013. The light curves indicate characteristics of a typical W-subtype W UMa ecli
Externí odkaz:
https://doaj.org/article/a280ab26b2de4bcabc964b0715e2ddea
Autor:
A. Bulut, İbrahim Bulut
Publikováno v:
Volume: 11, Issue: 1 192-199
Journal of the Institute of Science and Technology
Journal of the Institute of Science and Technology
In this study, the light curves of the ultra-short period W UMa type KIC 7375612 and KIC 9898401 systems were analyzed for the geometric and physical parameters of the systems for the first time. Observation data for light curve analysis were taken f