A Search for SS Cyg Outburst Predictors

TL;DR

This study conducted a two-year photometric search for outburst predictors in SS Cyg but found no short-term predictors, while long-term archival data revealed a correlation between a quasi-periodic feature and increased outburst rate.

Contribution

The paper presents a comprehensive two-year photometric analysis and uncovers a long-term correlation in archival data, advancing understanding of outburst patterns in SS Cyg.

Findings

No short-term outburst predictors detected in two-year photometric data.

A long-term quasi-periodic feature correlates with increased outburst rate.

Archival data analysis reveals potential long-term predictive indicators.

Abstract

We report null results on a two year photometric search for outburst predictors in SS Cyg. Observations in Johnson V and Cousins I were obtained almost daily for multiple hours per night for two observing seasons. The accumulated data are put through various statistical and visual analysis techniques but fails to detect any outburst predictors. However, analysis of 102 years of AAVSO archival visual data led to the detection of a correlation between a long term quasi-periodic feature at around 1,000-2,000 days in length and an increase in outburst rate.