Spectropolarimetry of Nova Cygni 1992: Evidence for an asymmetric geometry

Details Spectropolarimetry of Nova Cygni 1992: Evidence for an asymmetric geometry Spectropolarimetry of Nova Cygni 1992: Evidence for an asymmetric geometry

Apr 1994

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1994apj...425..247b&link_type=abstract

Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 425, no. 1, p. 247-251

Astronomy and Astrophysics

Astrophysics

16

Astronomical Polarimetry, Astrophysics, Cataclysmic Variables, Emission Spectra, Linear Polarization, Novae, Continuums, Light Curve, Line Spectra, Polarimeters, Space Observations (From Earth)

Scientific paper

We present the first study of the spectropolarimetric evolution of a fast neon nova from outburst through the decline of the light curve, showing the initial presence and gradual disappearance of intrinsic linear polarization. The observations of Nova Cygni 1992 were obtained at the Pine Bluff Observatory of the University of Wisconsin from 1992 March through 1993 May. The emission lines and the continuum show quite different linear polarization behaviors, with the line emission essentially unpolarized and the continuum showing intrinsic polarization. The data provide evidence for an asymmetric geometry in the initial explosion and evidence for clumping in the subsequent nova ejecta.

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