Kameswara Rao, N; Lambert, D. L; Shetrone, M. D
(Blackwell Publishing, 2006-08)
A set of five high-resolution optical spectra of R CrB obtained in 2003 March is discussed. At the time of the first spectrum (March 8), the star was at V = 12.6, a decline of more than six magnitudes. By March 31, the ...