An Infrared Coronagraphic Survey for Substellar Companions

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dc.creatorLowrance, P.
dc.creatorBecklin, E. E.
dc.creatorSchneider, G.
dc.creatorKirkpatrick, D.
dc.creatorWeinberger, A.
dc.creatorZuckerman, B.
dc.creatorDumas, C.
dc.creatorBeuzit, J. L.
dc.creatorPlait, P.
dc.creatorMalumuth, E.
dc.creatorHeap, S.
dc.creatorTerrile, R.
dc.creatorHines, D.
dc.date2005-06-15
dc.date.accessioned2026-07-07T11:24:28Z
dc.date.available2026-07-07T11:24:28Z
dc.descriptionWe have used the F160W filter (1.4-1.8 um) and the coronagraph on the Near-InfraRed Camera and Multi-Object Spectrometer (NICMOS) on the Hubble Space Telescope (HST) to survey 45 single stars with a median age of 0.15 Gyr, an average distance of 30 pc, and an average H-magnitude of 7 mag. For the median age we were capable of detecting a 30 M_Jup companion at separations between 15 and 200 AU. A 5 M_Jup object could have been detected at 30 AU around 36% of our primaries. For several of our targets that were less than 30 Myr old, the lower mass limit was as low as a Jupiter mass, well into the high mass planet region. Results of the entire survey include the proper motion verification of five low-mass stellar companions, two brown dwarfs (HR7329B and TWA5B) and one possible brown dwarf binary (Gl 577B/C).
dc.description11 figures, accepted by AJ
dc.identifierhttps://arxiv.org/abs/astro-ph/0506358
dc.identifierhttp://arxiv.org/abs/astro-ph/0506358
dc.identifierAstron.J.130:1845-1861,2005
dc.identifierdoi:10.1086/432839
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/195204
dc.subjectAstrophysics
dc.titleAn Infrared Coronagraphic Survey for Substellar Companions
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