Expansion of the Nova Shell Around Z Cam

Details Expansion of the Nova Shell Around Z Cam Expansion of the Nova Shell Around Z Cam

Jan 2012

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2012aas...21934822m&link_type=abstract

American Astronomical Society, AAS Meeting #219, #348.22

Astronomy and Astrophysics

Astronomy

Scientific paper

Z Camelopardis (Z Cam) is a bright dwarf nova with an asymmetrically expanding old nova shell. We obtained Kitt Peak 4m images narrowband [NII] from two epochs, three years apart, to measure or constrain expansion of the shell. Several experiments to map the edge of the circular arc part of the shell demonstrate that it has expanded less than a single pixel in three years. This supports an age significantly in excess of 1,000 years for the shell of Z Cam.

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