Lambert, D. L; Kameswara Rao, N; Giridhar, S
(Indian Academy of Sciences, 1990-12)
Moderate-resolution spectra of the C2 Swan 0-1 bandhead, the Na I D lines and the K I resonance lines near 7660 A obtained at minimum light during the 1988-1989 decline of R CrB are discussed and interpreted in terms of a ...