SIMBAD references

2021RNAAS...5...18R - Research Notes of the AAS, 5, 18 (2021/January-0)

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

ROTHERMICH A., SCHNEIDER A.C., FAHERTY J.K., ALLERS K., BARDALEZ-GAGLIUFFI D., MEISNER A.M., KUCHNER M., KIRKPATRICK J.D., CASELDEN D. and BEAULIEU P.

Abstract (from CDS):

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 (μα, μδ) = (-126 ± 22, -478 ± 23) and angular separation of 342 from APMPM 2036-4936, we calculate a chance alignment probability of 1.15 × 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.

Abstract Copyright: © 2021. The Author(s). Published by the American Astronomical Society.

Journal keyword(s): Low mass stars - Binary stars

Simbad objects: 12

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