Results 41 to 50 of about 196,359 (117)
The Astrophysical JournalCY Ari and IK Lyn are two eclipsing binary systems that share the same spectral type but exhibit significantly different metallicities. Based on the Wilson–Devinney (W-D) method, the first photometric solutions are obtained by analyzing the new complete ...
Hu-Shan Xu +5 more
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EVIDENCE ON HOT SPOT IN CONTACT BINARY VW CEPHEI
Odessa Astronomical Publications, 2017 We study the nature of asymmetry and the intrinsic variability in the light curves of VW Cep. We analyze our own B,V light curves as well as the other data from literary sources. In view of the presence of significant intrinsic brightness variations at a
I. B. Pustylnik, P. G. Niarchos
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The Strength and Shapes of Contact Binary Objects
The Astrophysical Journal LettersWhile contact binary objects are common in the solar system, their formation mechanism is unclear. In this work we examine several contact binaries and calculate the necessary strength parameters that allow the two lobes to merge without the smaller of ...
Alex J. Meyer, Daniel J. Scheeres
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Light Curve Solution of the Contact Binary AW UMa [PDF]
Journal of Astronomy and Space Sciences, 1997 A total of 1088 observations (272 in B,272 in V, 272 in R, and 272 in I) were made from January to February in 1995 at Chungbuk National University observatory(CbNUO). We constructed BVRI light curves with our data.
J. H. Jeong, Y. S. Lee, J. R. Yim
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The Astrophysical Journal Supplement SeriesWith the continuous development of large optical surveys, a large number of light curves of late-type contact binary systems (CBs) have been released.
JinLiang Wang +5 more
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CN Trianguli: A W-type Contact Binary Exhibiting A-type Light Curve via Starspot-induced Dimming
The Astrophysical JournalWe present comprehensive photometric observations and analysis of the totally eclipsing binary CN Tri. The photometric solutions suggest it as an extremely low mass ratio contact binary system with q ∼ 0.08.
Zhi-Hua Wang +3 more
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Two Ultralow-mass-ratio Binary Systems at Critical Evolutionary Stages
The Astronomical JournalIn this paper, we present photometric observations and period analysis of two totally eclipsing binaries with extremely low-amplitude light curves. Both binaries exhibit typical W Ursae Majoris-type light curves with total eclipses, allowing for the ...
Di-Fu Guo +6 more
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The effect of transition metal oxides on the performance of triboelectric nanogenerators
Communications MaterialsTriboelectric nanogenerators (TENGs) are a promising energy-harvesting technique that utilizes contact electrification and electrostatic induction to convert mechanical energy into electrical energy.
Md Arafat Hossain +4 more
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Absolute Dimensions of Contact Binary Stars in Baade Window [PDF]
Journal of Astronomy and Space Sciences, 1999 The light curves of the representative 6 contact binary stars observed by OGLE Project of searching for dark matter in our Galaxy have been analyzed by the method of the Wilson and Devinney Differential Correction to find photometric solutions.
Young Woon Kang
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V717 Andromedae: An Active Low Mass Ratio Contact Binary
The Open Journal of AstrophysicsMulti-band photometric analysis of the contact binary V717 Andromedae (V717 And) is presented. The system is found to be an extreme low mass ratio system (q = 0.197) with high inclination (i = 84.5 deg), moderate degree of contact (27%) and near equal ...
Surjit S. Wadhwa +4 more
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