Backyard Worlds: Planet 9 Discovery of an Unusual Low-mass Companion to an M Dwarf at 80 pc

Autor:	Rothermich, Austin, Schneider, Adam C., Faherty, Jacqueline K., Allers, Katelyn, Bardalez-Gagliuffi, Daniella, Meisner, Aaron M., Kuchner, Marc, Kirkpatrick, J. Davy, Caselden, Dan, Beaulieu, Paul
Rok vydání:	2021
Předmět:	Astrophysics - Solar and Stellar Astrophysics Astrophysics - Earth and Planetary Astrophysics
Zdroj:	RNAAS, Vol. 5, 1 (2021)
Druh dokumentu:	Working Paper
DOI:	10.3847/2515-5172/abdf46
Popis:	We present the discovery of CWISE J203546.35-493611.0, a peculiar M8 companion to the M4.5 star APMPM J2036-4936 discovered through the citizen science project Backyard Worlds: Planet 9. Given CWISE J203546.35-493611.0's proper motion ($\mu_{\alpha}$, $\mu_{\delta}$) = ($-$126$\pm$22, $-$478$\pm$23) and angular separation of 34.2$''$ from APMPM 2036-4936, we calculate a chance alignment probability of $1.15 \times 10^{-6}$. Both stars in this system appear to be underluminous, and the spectrum obtained for CWISE J203546.35-493611.0 shows a triangular H band. Further study of this system is warranted to understand these peculiarities. Comment: 3 pages, 1 figure
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/2102.02815 Zobrazit plný text záznamu View this record from Arxiv