Near infrared coronal line emission in Nova Herculis 1991

Details Near infrared coronal line emission in Nova Herculis 1991 Near infrared coronal line emission in Nova Herculis 1991

Mar 1993

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1993japa...14....7c&link_type=abstract

Journal of Astrophysics and Astronomy (ISSN 0250-6335), vol. 14, no. 1, p. 7-17.

Astronomy and Astrophysics

Astrophysics

Emission Spectra, Infrared Spectra, Novae, Stellar Coronas, Stellar Spectra, Interstellar Matter, Line Spectra, Stellar Envelopes, Stellar Spectrophotometry

Scientific paper

Near infrared coronal line emission at 1.98 +/- 0.02 micron due to the Si VI forbidden line, 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.

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