Abstract 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.
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Bickle, Thomas P. ; Jalowiczor, Peter A. ; Casewell, Sarah L. ; Faherty, Jacqueline K. ; Kiman, Rocio ; Schneider, Adam C. ; Kirkpatrick, J. Davy ; Meisner, Aaron M. ; Kuchner, Marc J. ; Caselden, Dan ; et al ( , Research Notes of the AAS)more » « less
Abstract We present WDJ220838.73+454434.04 (hereafter WD2208+454), a wide, co-moving white dwarf companion to the eclipsing binary system, AR Lacertae. The companion was discovered through the Backyard Worlds: Planet 9 citizen science collaboration. It has a separation of 21.″9 on the sky from the central eclipsing pair, translating to a projected separation of ∼930 au. We present a review of the physical properties and orbital parameters of this new addition to the system.
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Jalowiczor, Peter A. ; Casewell, Sarah ; Schneider, Adam C. ; Gagné, Jonathan ; Faherty, Jacqueline K. ; Kuchner, Marc J. ; Meisner, Aaron M. ; Burgasser, Adam J. ( , Research Notes of the AAS)null (Ed.)
