Abundance Analyses of the New R Coronae Borealis Stars ASAS-RCB-8 and ASAS-RCB-10

Please use this identifier to cite or link to this item: http://hdl.handle.net/2248/6771

Title:	Abundance Analyses of the New R Coronae Borealis Stars ASAS-RCB-8 and ASAS-RCB-10
Authors:	Hema, B. P Pandey, G Kamath, D Kameswara Rao, N Lambert, D. L Woolf, V. M
Keywords:	Stars: abundances Stars: chemically peculiar Stars: distances
Issue Date:	Oct-2017
Publisher:	IOP Publishing
Citation:	Publications of the Astronomical Society of the Pacific, Vol. 129, No. 980, 104202
Abstract:	Abundance analyses of the two newly discovered R Coronae Borealis (RCB) stars ASAS-RCB-8 and ASAS-RCB-10 were conducted using high-resolution optical spectra and model atmospheres. Their chemical compositions place the pair among the majority class of RCBs. ASAS-RCB-10 is one of the most N-poor majority RCBs with an above average O abundance. Relative to ASAS-RCB-10, ASAS-RCB-8 is H poor by 1.6 dex, O-poor by 0.7 dex but N-rich by 0.8 dex suggesting a higher contamination by CNO-cycled material.
Description:	Restricted Access © The Astronomical Society of the Pacific https://doi.org/10.1088/1538-3873/aa7f25
URI:	http://prints.iiap.res.in/handle/2248/6771
ISSN:	0004-6280
Appears in Collections:	IIAP Publications

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