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Possible companions in low-mass eclipsing binaries: V380 Dra, BX Tri, and V642 Vir

The result's identifiers

  • Result code in IS VaVaI

    <a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985815%3A_____%2F20%3A00534854" target="_blank" >RIV/67985815:_____/20:00534854 - isvavai.cz</a>

  • Alternative codes found

    RIV/68378271:_____/20:00534854

  • Result on the web

    <a href="http://hdl.handle.net/11104/0313016" target="_blank" >http://hdl.handle.net/11104/0313016</a>

  • DOI - Digital Object Identifier

    <a href="http://dx.doi.org/10.31577/caosp.2020.50.2.637" target="_blank" >10.31577/caosp.2020.50.2.637</a>

Alternative languages

  • Result language

    angličtina

  • Original language name

    Possible companions in low-mass eclipsing binaries: V380 Dra, BX Tri, and V642 Vir

  • Original language description

    We present the new results of our long-term observational project to analyze the orbital period variations of low-mass eclipsing binaries. More then 200 new precise mid-eclipse times recorded with a CCD were obtained for three eclipsing binaries with short orbital periods: V380 Dra (P = 0(d).49), BX Tri (0(d).19), and V642 Vir (0(d). 52). Observed-minus-calculated diagrams of the stars were analyzed using all reliable timings, and new parameters of the light-time effect were obtained. We derived for the first time the short orbital periods of possible third bodies of 10-20 years for these objects. We calculated that the minimum masses of the third component are close to 0.2 M-circle dot, which corresponds to the mass of M4 - M5 red dwarfs. The multiplicity of these systems also plays an important role in the precise determination of their physical parameters.

  • Czech name

  • Czech description

Classification

  • Type

    J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database

  • CEP classification

  • OECD FORD branch

    10308 - Astronomy (including astrophysics,space science)

Result continuities

  • Project

  • Continuities

    I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Others

  • Publication year

    2020

  • Confidentiality

    S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Data specific for result type

  • Name of the periodical

    Contributions of the Astronomical Observatory Skalnate Pleso

  • ISSN

    1336-0337

  • e-ISSN

  • Volume of the periodical

    50

  • Issue of the periodical within the volume

    2

  • Country of publishing house

    SK - SLOVAKIA

  • Number of pages

    5

  • Pages from-to

    637-641

  • UT code for WoS article

    000523574300058

  • EID of the result in the Scopus database

    2-s2.0-85087059629