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Title: The Spectrum of the Cool R Coronae Borealis Variable S Apodis in a Deep Decline
Authors: Goswami, A
Kameswara Rao, N
Lambert, D. L
Smith, V. V
Keywords: Stars: Variables: Other;Stars: Evolution
Issue Date: Mar-1997
Publisher: Astronomical Society of the Pacific
Citation: Publications of the Astronomical Society of the Pacific, Vol. 109, No. 733, pp. 270 - 273
Abstract: A high resolution spectrum (5575 - 8875\AA) of the cool R Coronae Borealis variable S Apodis in its 1993 deep decline is discussed. Narrow or chromospheric emission lines of Na I, K I, Ca II, and Ba II and broad emission lines of He I 7065\AA and Na I D are seen, as expected from published reports of warmer RCBs in decline. The surprise of the S Aps spectrum is the considerable blue shift of the broad emissions component to the Na D lines. The blue shift may result from lines formed in a bipolar flow which is obscured asymmetrically by soot clouds along the line of sight. (SECTION: Stars)
ISSN: 0004-6280
Appears in Collections:IIAP Publications

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