A New Cataclysmic Variable in Hercules

We present time‐series observations, spectra, and archival outburst data of a newly discovered variable star in Hercules, Var Her 04. Its orbital period, mass ratio, and outburst amplitude resemble those of the ugwz‐type subclass of ugsu dwarf novae. However, its supercycle and outburst light curve...

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Published in:Publications of the Astronomical Society of the Pacific 2004-12, Vol.116 (826), p.1117-1122
Main Authors: Price, A., Gary, B., Bedient, J., Cook, L., Templeton, M., Pullen, C., Starkey, D., Crawford, T., Corlan, R., Dvorak, S., Graham, K., Huziak, R., James, R., Messier, D., Quinn, N., Boyd, D., Blackwell, J., Walker, G., Mattei, M., Rodriguez, D., Simonsen, M., Henden, A., Vanmunster, T., Garnavich, P., Pittichová, J., Matheson, T., Challis, P., Kirshner, R. P., Adams, E., Harrison, T., Koppelman, M. D., Sarty, G. E., Mais, D. E.
Format: Article
Language:English
Subjects:
Astronomical objects
Astronomical photometry
Cataclysmic variables
Comparison stars
Light curves
Observational research
Observatories
Superhumps
Telescopes
Variable stars
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Summary:We present time‐series observations, spectra, and archival outburst data of a newly discovered variable star in Hercules, Var Her 04. Its orbital period, mass ratio, and outburst amplitude resemble those of the ugwz‐type subclass of ugsu dwarf novae. However, its supercycle and outburst light curve defy classification as a clear ugwz. Var Her 04 is most similar to the small group of possible hydrogen‐burning “period bouncers,” dwarf novae that have passed beyond the period minimum and returned.
ISSN:0004-6280
1538-3873
DOI:10.1086/427272