High resolution spectroscopy of R Coronae Borealis during the 1988— 1989 minimum
David L. Lambert N. Kameswara Rao Sunetra Giridhar
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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
David L. Lambert1 N. Kameswara Rao2 Sunetra Giridhar2
Volume 43, 2022
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