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Title: Mid-infrared variations of R Coronae Borealis stars
Authors: Kameswara Rao, N
Lambert, D. L
Keywords: Circumstellar matter;Stars: individual: R CrB
Issue Date: 11-Mar-2015
Publisher: Oxford University Press on behalf of the Royal Astronomical Society
Citation: Monthly Notices of the Royal Astronomical Society, Vol. 447, No. 4, pp. 3664-3677
Abstract: Mid-infrared (IR) photometry of R Coronae Borealis stars obtained from various satellites from Infrared Astronomical Satellite (IRAS) to Wide-field Infrared Survey Explorer (WISE) has been utilized in studying the variations of the circumstellar dust's contributions to the spectral energy distribution of these stars. The variation of the fractional coverage (R) of dust clouds and their blackbody temperatures (Td) have been used in trying to understand the dust cloud evolution over the three decades spanned by the satellite observations. In particular, it is shown that a prediction R∝T4d developed in the paper is satisfied, especially by those stars for which a single collection of clouds dominates the IR fluxes.
Description: Restricted Access
ISSN: 1365-2966
???metadata.dc.rights???: © Royal Astronomical Society
Appears in Collections:IIAP Publications

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