WIYN Observations of Nova CAS 1995: Evidence for Complex Structure in the Ejecta

Details WIYN Observations of Nova CAS 1995: Evidence for Complex Structure in the Ejecta WIYN Observations of Nova CAS 1995: Evidence for Complex Structure in the Ejecta

May 1996

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1996aas...188.5710j&link_type=abstract

American Astronomical Society, 188th AAS Meeting, #57.10; Bulletin of the American Astronomical Society, Vol. 28, p.913

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Scientific paper

We present spectropolarimetry of Nova Cas 1995 obtained at the WIYN observatory. This is a continuation of the monitoring of Nova Cas begun at the University of Wisconsin's Pine Bluff Observatory. The polarization changed dramatically between observations, indicating ongoing changes in the optical depth and geometry of the ejecta. In addition, variations of the polarization and position angle across Hα are indicative of two shells with symmetry axes nearly perpendicular to each other. We argue that the shells are the beginnings of the equatorial ring/polar cap geometry observed in some old nova shells.

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