Search for close encounters of stars with the Solar System using Gaia DR3 catalog
Vadim Bobylev, Anisa Bajkova
A search for close encounters of stars with the Solar System was performed using data from the Gaia\,DR3 catalog. We considered 31 stars with the approach parameter dmin<1~pc. Among them, 15 stars are appearing as candidates for close encounters for the first time. The status of the stars GJ\,710 and HD\,7977 has been confirmed as candidates for deep penetration into the inner region of the Oort cloud. In particular, for GJ\,710 and HD\,7977, respectively, the following estimates of approach parameters are obtained: tmin=1.324±0.026~Myr and dmin=0.018±0.002~pc, tmin=−2.830±0.025~Myr and dmin=0.071±0.027~pc. Among the newly identified candidates, the most interesting is the white dwarf WD\,0810-353, for which the following approach parameters were found: tmin=0.029±0.001~Myr and dmin=0.150±0.003~pc.
Comments: 9 pages, 3 tables, submitted to Astronomical Letters
Subjects: Astrophysics of Galaxies (astro-ph.GA); Earth and Planetary Astrophysics (astro-ph.EP); Solar and Stellar Astrophysics (astro-ph.SR)
Cite as: arXiv:2206.14443 [astro-ph.GA] (or arXiv:2206.14443v1 [astro-ph.GA] for this version)
Submission history
From: Vadim V. Bobylev
[v1] Wed, 29 Jun 2022 07:49:57 UTC (10 KB)
