An Upper Bound on the Flux Ratio of rho CrB's Companion at 1.6um

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dc.creatorBender, C.
dc.creatorSimon, M.
dc.creatorPrato, L.
dc.creatorMazeh, T.
dc.creatorZucker, S.
dc.date2004-09-17
dc.date.accessioned2026-07-07T11:42:22Z
dc.date.available2026-07-07T11:42:22Z
dc.descriptionWe use high resolution infrared spectroscopy to investigate the 2001 report by Gatewood and colleagues that rho CrB's candidate extrasolar planet companion is really a low-mass star with mass 0.14+-0.05 Msun. We do not detect evidence of such a companion; the upper bounds on the (companion/primary) flux ratio at 1.6 microns are less than 0.0024 and 0.005 at the 90 and 99% confidence levels, respectively. Using the H-band mass-luminosity relationship calculated by Baraffe and colleagues, the corresponding upper limits on the companion mass are 0.11 and 0.15 Msun. Our results indicate that the infrared spectroscopic technique can detect companions in binaries with flux ratios as low as 0.01 to 0.02.
dc.description22 pages, 10 figures, accepted for publication in the Astronomical Journal
dc.identifierhttps://arxiv.org/abs/astro-ph/0409433
dc.identifierhttp://arxiv.org/abs/astro-ph/0409433
dc.identifierAstron.J.129:402,2005
dc.identifierdoi:10.1086/426331
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/200865
dc.subjectAstrophysics
dc.titleAn Upper Bound on the Flux Ratio of rho CrB's Companion at 1.6um
dc.typetext

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