Research output: Contribution to journal › Article › peer-review
Mass Constraint of Several Transiting Planets. / Gadelshin, D. R.; Valyavin, G. G.; Lee, Byeong Cheol; Jeong, Gwanghui; Inwoo, Han; Galazutdinov, G. A.; Aitov, V. N.; Yakunin, I. A.; Burlakova, T. E.; Valeev, A. F.
In: Astrophysical Bulletin, Vol. 75, No. 4, 10.2020, p. 437-439.Research output: Contribution to journal › Article › peer-review
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TY - JOUR
T1 - Mass Constraint of Several Transiting Planets
AU - Gadelshin, D. R.
AU - Valyavin, G. G.
AU - Lee, Byeong Cheol
AU - Jeong, Gwanghui
AU - Inwoo, Han
AU - Galazutdinov, G. A.
AU - Aitov, V. N.
AU - Yakunin, I. A.
AU - Burlakova, T. E.
AU - Valeev, A. F.
N1 - Publisher Copyright: © 2020, Pleiades Publishing, Ltd. Copyright: Copyright 2021 Elsevier B.V., All rights reserved.
PY - 2020/10
Y1 - 2020/10
N2 - Abstract—We present the measurements of masses of two exoplanets and one exoplanet candidate: the candidate we earlier confirmed in the KOI-974 system, a new TESS candidate in the TOI-1797 system, and the well-known hot Jupiter MASCARA-3b. The observations were carried out using the first prototype of the high-resolution fiber-opticspectrograph of the 6-m BTA telescope, and with the BOES spectrograph of Bohyunsan Optical Astronomy Observatory of the Korea Astronomy and Space Science Institute. The MASCARA-3b mass estimates are presented to demonstrate the performance of the new BTA spectrograph and do not differ from the measurements of other authors within the errors. The KOI-974 mass estimate upper constraint is new. Assuming a circular orbit, the exoplanet mass does not exceed 0.16 MJup. More complex orbital shapes are not visible at the radial velocity half-amplitude level of more than 20 m s−1, which classifies this exoplanet as the neptunes. Only four observations were obtained for the planetary candidate TOI-1797.01, which is insufficient for its confident classification. Meanwhile, the candidate’s radial velocity values based on these four observations rule out its stellar nature.
AB - Abstract—We present the measurements of masses of two exoplanets and one exoplanet candidate: the candidate we earlier confirmed in the KOI-974 system, a new TESS candidate in the TOI-1797 system, and the well-known hot Jupiter MASCARA-3b. The observations were carried out using the first prototype of the high-resolution fiber-opticspectrograph of the 6-m BTA telescope, and with the BOES spectrograph of Bohyunsan Optical Astronomy Observatory of the Korea Astronomy and Space Science Institute. The MASCARA-3b mass estimates are presented to demonstrate the performance of the new BTA spectrograph and do not differ from the measurements of other authors within the errors. The KOI-974 mass estimate upper constraint is new. Assuming a circular orbit, the exoplanet mass does not exceed 0.16 MJup. More complex orbital shapes are not visible at the radial velocity half-amplitude level of more than 20 m s−1, which classifies this exoplanet as the neptunes. Only four observations were obtained for the planetary candidate TOI-1797.01, which is insufficient for its confident classification. Meanwhile, the candidate’s radial velocity values based on these four observations rule out its stellar nature.
KW - methods:observational—planetary systems
UR - http://www.scopus.com/inward/record.url?scp=85099377803&partnerID=8YFLogxK
U2 - 10.1134/S1990341320040069
DO - 10.1134/S1990341320040069
M3 - Article
AN - SCOPUS:85099377803
VL - 75
SP - 437
EP - 439
JO - Astrophysical Bulletin
JF - Astrophysical Bulletin
SN - 1990-3413
IS - 4
ER -
ID: 76573714