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    • Fulltext

       

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      Permanent link:
      https://www.ias.ac.in/article/fulltext/joaa/014/01/0007-0017

    • Keywords

       

      Nova Her 91; infrared spectrophotometry; coronal line emission; shock heating; circumstellar dust

    • Abstract

       

      Near infrared coronal line emission at 1.98 ± 0.02Μm due to [Si VI] detected in the spectrum of Nova Herculis 1991 about 17 days after optical maximum is reported. The early appearance of coronal emission is yet another unusual feature of this fast nova in which early onset of dust formation processes and X-ray detection five days after outburst have already been reported. The coronal line observations reported here are consistent with X-ray detection and support a hot shocked circumstellar envelope at the periphery of the dust formation zone in the nova.

    • Author Affiliations

       

      T. Chandrasekhar1 N. M. Ashok1 Sam Ragland1

      1. Physical Research Laboratory, Navrangpura, Ahmedabad - 380009

    • Dates

       
      Published
      March 1993
      Manuscript received
      25 August 1992
      Accepted
      13 January 1993

  • Journal of Astrophysics and Astronomy | News

    • Continuous Article Publication

      Posted on January 27, 2016

      Since January 2016, the Journal of Astrophysics and Astronomy has moved to Continuous Article Publishing (CAP) mode. This means that each accepted article is being published immediately online with DOI and article citation ID with starting page number 1. Articles are also visible in Web of Science immediately. All these have helped shorten the publication time and have improved the visibility of the articles.

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      Posted on July 25, 2019

      Click here for Editorial Note on CAP Mode

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