NY Her: possible discovery of negative superhumps
A. Sosnovskij, E. Pavlenko, N. Pit, K. Antoniuk
TL;DR
This study reports the detection of potential negative superhumps in the SU UMa dwarf nova NY Her during quiescence, based on photometric observations and period analysis.
Contribution
It presents the first possible identification of negative superhumps in NY Her, expanding understanding of its accretion disk behavior during quiescence.
Findings
Detected a 0.07141-day period consistent with negative superhumps.
Observed strong amplitude variations in the light curves.
Provided evidence for negative superhumps outside outburst phases.
Abstract
We presents result of CDD photometry for SU UMa dwarf nova NY Her during 6 nights in June 2017 when object was in quiescence. Light curves clearly show strong amplitude variations in a range of 0m.7-1m.1. Time series analysis revealed a period 0.07141(5) d, that we identified as the period of possible negative superhumps of NY Her.
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