Discovery of a second companion of Dwingeloo 1

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dc.contributor.authorMcCall, ML
dc.contributor.authorButa, RJ
dc.contributor.otherUniversity of Alabama Tuscaloosa
dc.date.accessioned2019-07-09T16:52:36Z
dc.date.available2019-07-09T16:52:36Z
dc.date.copyright1997
dc.date.issued1997-03
dc.description.abstractDeep near-infrared CCD imaging of the field of the recently discovered nearby galaxies Dwingeloo 1 and 2 has revealed a third, previously unknown galaxy which is most likely a second physical companion of Dwingeloo 1. Only 9'.2 to the southwest of Dwingeloo 1 is a diffuse featureless oval with a diameter of 1'.9 in I. Isophotes are oriented nearly east-west and within 30 degrees of the direction of Dwingeloo 1. Neutral hydrogen studies have failed to reveal a source at this position, and no H alpha emission is evident. Thus, the object is probably a dwarf spheroidal companion of Dwingeloo 1, although there is a small possibility that it is a quiescent gas-rich dwarf with a velocity low enough that its signal is confused with emission from the Milky Way. The galaxy is almost certainly a member of the IC 342-Maffei 1 group, thereby placing it 3+/-1 Mpc away. (C) 1997 American Astronomical Society.en_US
dc.format.mimetypeapplication/pdf
dc.identifier.citationMcCall, M., Buta, R. (1997): Discovery of a Second Companion of Dwingeloo 1. The Astronomical Journal, 113(3). DOI: 10.1086/118314
dc.identifier.doi10.1086/118314
dc.identifier.issn0004-6256
dc.identifier.urihttp://ir.ua.edu/handle/123456789/5915
dc.languageEnglish
dc.language.isoen_US
dc.publisherAmerican Institute of Physics
dc.rights.holderAmerican Astronomical Society
dc.subjectNEARBY GALAXIES
dc.subjectGALACTIC NEIGHBORHOOD
dc.subjectLOCAL GROUP
dc.subjectMILKY-WAY
dc.subjectEXTINCTION
dc.subjectMAFFEI-1
dc.subjectHISTORY
dc.subjectMEMBERS
dc.subjectORBITS
dc.subjectIC-342
dc.subjectAstronomy & Astrophysics
dc.titleDiscovery of a second companion of Dwingeloo 1en_US
dc.typetext
dc.typeArticle
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