Polarimetry and the Long Awaited Superoutburst of BZ UMa
A. Price, J. Masiero, A. A. Henden, T. Vanmunster, D. Boyd, S. Dvorak,, A. Oksanen, J. Shears, D. Starkey, A. Arminski, D. Collins, D. Durig, B., Harris, R. Koff, M. Koppelman, T. Krajci, M. Reszelski, M. Simonsen, T., Arranz, R. Tomlin, D. Wells
TL;DR
This paper reports the first superoutburst detection of BZ UMa, using photometric and polarimetric data, and argues it is a non-magnetic U Gem class dwarf nova based on 40 years of observations.
Contribution
It provides the first superoutburst observation of BZ UMa and clarifies its classification as a non-magnetic U Gem type dwarf nova.
Findings
First detected superoutburst of BZ UMa.
Supports classification as non-magnetic U Gem dwarf nova.
40 years of archival data analyzed.
Abstract
BZ UMa is a cataclysmic variable star whose specific classification has eluded researchers since its discovery in 1968. It has outburst and spectral properties consistent with both U Gem class dwarf novae and intermediate polars. We present new photometric and polarimetric measurements of recent outbursts, including the first detected superoutburst of the system. Statistical analysis of these and archival data from outbursts over the past 40 years present a case for BZ UMa as a non-magnetic, U Gem class, SU-UMa subclass dwarf novae.
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Taxonomy
TopicsRare-earth and actinide compounds · Nuclear physics research studies · Nuclear Materials and Properties