Published January 1, 2025
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Orbital analysis of additional bodies around eclipsing binaries HT Vir and MR Del
- 1. Ankara Univ, Dept Astron & Space Sci, Grad Sch Nat & Appl Sci, Ankara, Turkiye
- 2. Istanbul Univ, Dept Astron & Space Sci, Grad Sch Nat & Appl Sci, Istanbul, Turkiye
Description
We analyze the orbital characteristics of additional bodies suggested to exist around the eclipsing binaries HT Vir and MR Del by utilizing both astrometric and eclipse timing data, with recent timing data primarily from TESS and astrometric data from Gaia. Our analysis shows that the available timing data for HT Vir closely follows the ETV trend induced by the companion suggested by the astrometric solution. For MR Del, we derived an orbital solution indicating a companion with an approximate semi-major axis of 150 AU. We also updated the ETV analysis for MR Del, finding a longer-period variation compared to previous studies.
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