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      Permanent link:
      https://www.ias.ac.in/article/fulltext/joaa/011/04/0475-0490

    • Keywords

       

      spectroscopy, R CrB; 1988–1989 minimum

    • 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

    • Author Affiliations

       

      David L. Lambert1 N. Kameswara Rao2 Sunetra Giridhar2

      1. Department of Astronomy, University of Texas, Austin, Texas, USA
      2. Indian Institute of Astrophysics, Bangalore - 560034
    • Dates

       
  • Journal of Astrophysics and Astronomy | News

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