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2021RNAAS...5..170J - Research Notes of the AAS, 5, 170 (2021/July-0)

Identification of a White Dwarf Companion in the V* HP Dra System.

JALOWICZOR P.A., CASEWELL S., SCHNEIDER A.C., FAHERTY J.K. and KUCHNER M.J.

Abstract (from CDS):

We present Gaia DR2 2144465183642117888, a previously unknown, wide white dwarf companion to the HP Dra eclipsing binary system. This companion was discovered through the Backyard Worlds: Planet 9 citizen science collaboration. It has separation of 14.″4 on the sky from the central eclipsing pair, translating to a projected separation of ∼1140 au. We present a review of the orbit and physical parameters of all the components in this now triple system.

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

Journal keyword(s): White dwarf stars - Eclipsing binary stars - Multiple stars

Simbad objects: 2

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