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New R Coronae Borealis stars discovered in OGLE-III Galactic bulge fields from their mid- and near-infrared properties

Tisserand, Patrick; Wyrzykowski, L; Wood, Peter R; Udalski, A; Szymanski, M; Kubiak, M; Pietrzynski, G; Soszyński, Igor; Szewczyk, O; Ulaczyk, K; Poleski, R


Context. An R Coronae Borealis (RCB) star is a rare type of supergiant star that is increasingly suspected to be the evolved merger product of two white dwarfs. Lately, many RCBs have been found distributed in a thin disk structure embedded inside the Galactic bulge. This unexpectedly high density may provide additional insight into the nature and age of RCB stars. Aims. We apply and test a new technique to find RCB stars based on their particular infrared emission due to circumstellar shell....[Show more]

CollectionsANU Research Publications
Date published: 2011
Type: Journal article
Source: Astronomy and Astrophysics
DOI: 10.1051/0004-6361/201014220
Access Rights: Open Access


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