Ariel 1118 - 61: A Very Close Binary System?
نویسندگان
چکیده
منابع مشابه
The first PG 1159 close binary system
The archival spectrum of SDSS J212531.92-010745.9 shows not only the typical signature of a PG 1159 star, but also indicates the presence of a companion. With time-series photometry of SDSS J212531.92-010745.9 during 10 nights, spread over one month, with the Tübingen 80 cm and the Göttingen 50 cm telescopes, the binary nature of this object has recently been proven. An orbital period of 6.9 h ...
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CBS is a new program for binary system light curve analysis, it generates synthetic light curves for a binary system, accounting for eclipses, tidal distortion, limb darkening, gravity darkening and reflection; it is also possible to compute the light contribution and eclipses of an accretion disk. The bolometric light curve is generated, as well as curves for the U,B,V,R,I colour bands. In the...
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It is now clear that there is a substantial population of primordial binaries in galactic globular clusters and that binary interactions are a major influence on globular cluster evolution. Collisional interactions involving stars in binaries may provide a significant channel for the formation of various stellar exotica, such as blue stragglers, X–ray binaries and millisecond pulsars. We report...
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Using Monte Carlo simulations and published radial velocity surveys we have constrained the frequency and separation (a) distribution of very low mass star (VLM) and brown dwarf (BD) binary systems. We find that simple Gaussian extensions of the observed wide binary distribution, with a peak at 4 au and 0.6 < σlog(a/au) < 1.0, correctly reproduce the observed number of close binary systems, imp...
متن کاملOn the frequency of close binary systems among very low - mass stars and brown dwarfs
We have used Monte Carlo simulation techniques and published radial velocity surveys to constrain the frequency of very low-mass star (VLMS) and brown dwarf (BD) binary systems and their separation (a) distribution. Gaussian models for the separation distribution with a peak at a = 4 au and 0.6 σ log(a/au) 1.0, correctly predict the number of observed binaries, yielding a close (a < 2.6 au) bin...
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ژورنال
عنوان ژورنال: Monthly Notices of the Royal Astronomical Society
سال: 1975
ISSN: 0035-8711,1365-2966
DOI: 10.1093/mnras/172.3.493