Results 1 to 10 of about 58,723 (257)
On Variation Mechanisms in Recurrent Nova IM Normae
Galaxies, 2022 Light curves by Woudt and Warner (WW) of recurrent nova IM Nor show eclipse-like dips that they saw as too wide for eclipses alone, and interpreted as mainly a reflection effect due to irradiation of the companion (mass donor) star with some amplitude ...
R. E. Wilson
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Parameterization of long-period eclipsing binaries
Open Astronomy, 2022 One of the important sources for independent determination of stellar masses is eclipsing binaries with components on the main sequence, and with observable spectral lines of both components.
Pakhomova Polina +4 more
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Formation of Neutral Disk-Like Zone Around the Active Hot Stars in Symbiotic Binaries
Open Astronomy, 2012 In this contribution we present the ionization structure in the enhanced wind from the hot star in symbiotic binaries during active phases. Rotation of the hot star leads to the compression of the outflowing material towards its equatorial plane.
Cariková Z., Skopal A.
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Galaxies, 2023 We investigate some properties of exotic spherical configurations made of dark matter and dark energy. For the former, we adopt a polytropic equation-of-state, while for the latter, we adopt the extended Chaplygin gas equation-of-state.
Camila Sepúlveda, Grigoris Panotopoulos
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Mass Ejection from the Symbiotic Prototype Z and During its 2006 Outburst
Open Astronomy, 2012 High-resolution spectroscopic observations in the region of the Balmer Hα and Hγ lines of the symbiotic binary Z And were performed during its major eruption in 2006.
Tomov N. A. +2 more
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Analyzing Binary Relationships of Identity Labels Using Distributional Semantic Models
Iperstoria, 2023 Following the shift towards quantitative, corpus-based analysis in queer linguistics, I examine the usage of identity labels to explore the binary relationships and predicted normative effects in the case of the online community r/lgbt, a subreddit ...
Hunter Youngquist
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Symbiotic Nova PU Vul - 33 Years of Observations
Open Astronomy, 2012 We present UBVRI light curves of the symbiotic nova PU Vul after its outburst in 1978. Three observed eclipses of the hot component by the cool one were used to determine the ephemeris of the binary system as JD (Min I) = 2444550(15) + 4897(10) × E days.
Shugarov S., Chochol D., Kolotilov E.
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Photometric Activity of the Symbiotic Star CH Cyg During 2008–2011
Open Astronomy, 2012 We present results of UBVRC observations of the symbiotic star CH Cyg before and after optical and X-ray bursts in 2009 at various timescales. Rapid variability was found only during a strong burst (U ~ 9.5 mag) in 2009 October, while during the low ...
Shugarov S. +4 more
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Open Astronomy, 2017 Evolved stars with a helium core can be formed by non-conservative mass exchange interaction with a companion or by strong mass loss. Their masses are smaller than 0.5 M⊙. In the database of the Sloan Digital Sky Survey (SDSS), there are several thousand
Pelisoli Ingrid +2 more
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The BSN Application-I: Photometric Light Curve Solutions of Contact Binary Systems
GalaxiesLight curve analysis of W UMa-type contact binary systems using MCMC or MC methods can be time-consuming, primarily because the repeated generation of synthetic light curves tends to be relatively slow during the fitting process.
Ehsan Paki +2 more
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