Today a Duo, but Once a Trio? The Double White Dwarf HS 2220+2146 May Be a Post-blue Straggler Binary

Year2016
JournalThe Astrophysical Journal
AuthorAndrews, Jeff J., Ag├╝eros, Marcel, Brown, Warren R., Gosnell, Natalie M., Gianninas, A., Kilic, Mukremin, Koester, Detlev
Bibcode2016ApJ...828...38A
TelescopeGN
InstrumentGMOS-N
PartnerAU
CountryOTHER
Program IDGN-2009B-Q-80

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