Research output: Contribution to journal › Article › peer-review
On the correctness of orbital solutions obtained from a small set of points. Orbit of HIP 53731. / Mitrofanova, Arina; Dyachenko, Vladimir; Beskakotov, Anatoly; Balega, Yury; Maksimov, Alexander; Rastegaev, Denis; Komarinsky, Sergey.
In: Research in Astronomy and Astrophysics, Vol. 20, No. 11, 187, 01.11.2020.Research output: Contribution to journal › Article › peer-review
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TY - JOUR
T1 - On the correctness of orbital solutions obtained from a small set of points. Orbit of HIP 53731
AU - Mitrofanova, Arina
AU - Dyachenko, Vladimir
AU - Beskakotov, Anatoly
AU - Balega, Yury
AU - Maksimov, Alexander
AU - Rastegaev, Denis
AU - Komarinsky, Sergey
N1 - Publisher Copyright: © 2020 National Astronomical Observatories, CAS and IOP Publishing Ltd..
PY - 2020/11/1
Y1 - 2020/11/1
N2 - HIP 53731 is a binary consisting of stars of the spectral types K0 and K9. The orbit of this object was constructed previously by Cvetković et al. and improved by Tokovinin. It should be noted that there is a 180° ambiguity in the position angles of some published measurements. Speckle interferometric observations were obtained in 2007-2020 (21 measurements) at the 6-m telescope of the SAO RAS (BTA) by the authors of this article. The analysis of new data together with previously published ones made it possible to construct an accurate orbit of HIP 53731 and to halve the already known values of the orbital period of the system. As a result of the study, the mass sum, the masses of each component and their spectral types were determined by two independent methods. According to the qualitative classification of orbits, the orbital solution has grade 2-"good"(observations cover more than half of the orbital period and correspond to different phases).
AB - HIP 53731 is a binary consisting of stars of the spectral types K0 and K9. The orbit of this object was constructed previously by Cvetković et al. and improved by Tokovinin. It should be noted that there is a 180° ambiguity in the position angles of some published measurements. Speckle interferometric observations were obtained in 2007-2020 (21 measurements) at the 6-m telescope of the SAO RAS (BTA) by the authors of this article. The analysis of new data together with previously published ones made it possible to construct an accurate orbit of HIP 53731 and to halve the already known values of the orbital period of the system. As a result of the study, the mass sum, the masses of each component and their spectral types were determined by two independent methods. According to the qualitative classification of orbits, the orbital solution has grade 2-"good"(observations cover more than half of the orbital period and correspond to different phases).
KW - Binaries: Spectroscopic-stars
KW - Fundamental parameters-stars
KW - High angular resolution
KW - Hip 53731
KW - Individual
KW - Low-mass
KW - Speckle interferometry-stars
KW - Techniques
UR - http://www.scopus.com/inward/record.url?scp=85097230469&partnerID=8YFLogxK
U2 - 10.1088/1674-4527/20/11/187
DO - 10.1088/1674-4527/20/11/187
M3 - Article
AN - SCOPUS:85097230469
VL - 20
JO - Research in Astronomy and Astrophysics
JF - Research in Astronomy and Astrophysics
SN - 1674-4527
IS - 11
M1 - 187
ER -
ID: 85607501