Spectroscopic triples and a chance alignment: a solution for the problem of suspicious mass ratios for SB2s from Wilson method-Reference-Cited by-同舟云学术

Spectroscopic triples and a chance alignment: a solution for the problem of suspicious mass ratios for SB2s from Wilson method

Published:2023-10-17 Issue:1 Volume:527 Page:346-355
ISSN:0035-8711
Container-title:Monthly Notices of the Royal Astronomical Society
language:en
Short-container-title:

Author:

Kovalev Mikhail¹²³^ORCID,Chen Xuefei¹²⁴,Han Zhanwen¹²⁴^ORCID

Affiliation:

1. Yunnan Observatories, China Academy of Sciences , Kunming 650216 , China

2. Key Laboratory for the Structure and Evolution of Celestial Objects, Chinese Academy of Sciences , Kunming 650011 , China

3. Sternberg Astronomical Institute, M. V. Lomonosov Moscow State University , Leninskie Gory, Moscow 119991 , Russia

4. Center for Astronomical Mega-Science, Chinese Academy of Sciences , 20A Datun Road, Chaoyang District, Beijing 100012 , China

Abstract

ABSTRACT We selected three double-lined spectroscopic binary systems which have extreme mass ratios, if measured using the Wilson method. We analysed medium resolution spectroscopic observations and space-based photometry and find that all these systems are not SB2, but rather triple systems and a chance alignment of another star with SB1 that have an unseen component. Therefore, suspicious mass ratios determined by the Wilson method for some double-lined spectroscopic binary systems aren’t correct as these systems are more complex.

Funder

Natural Science Foundation of China

National Development and Reform Commission

Publisher

Oxford University Press (OUP)

Subject

Space and Planetary Science,Astronomy and Astrophysics

Link

https://academic.oup.com/mnras/advance-article-pdf/doi/10.1093/mnras/stad3185/52209161/stad3185.pdf

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