High resolution spectroscopy of R Coronae Borealis during the 1988— 1989 minimum |
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| Authors: | David L. Lambert N. Kameswara Rao Sunetra Giridhar |
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| Affiliation: | (1) Department of Astronomy, University of Texas, Austin, Texas, USA;(2) Indian Institute of Astrophysics, 560034 Bangalore |
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| Abstract: | Moderate-resolution spectra of the C2 Swan 0-1 bandhead, the Na I D lines and the KI resonance lines near 7660 Å obtained at minimum light during the 1988–1989 decline of R CrB are discussed and interpreted in terms of a popular model for R CrB declines. High-resolution spectra obtained at maximum light show blue-shifted chromospheric emission in the cores of the Na I D and the Sc π 4246.8 Å lines |
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| Keywords: | spectroscopy, R CrB 1988– 1989 minimum |
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