Multicolor photometry of SU UMa and U Gem during quiescence, outburst and superoutburst

TL;DR

This study presents two-year multicolor photometric observations of SU UMa and U Gem, analyzing brightness variations across different time scales to understand their physical and geometrical origins.

Contribution

It provides detailed time-resolved multicolor photometry of SU UMa and U Gem during various activity states, distinguishing sources of brightness variations.

Findings

Identified orbital, QPO, and flickering variations in both stars.

Used BVRI photometry to differentiate physical and geometrical sources.

Enhanced understanding of dwarf novae behavior during quiescence and outbursts.

Abstract

The results of time-resolved observations of SU UMa and U Gem obtained over two-years are presented. Both stars are prototypes of different classes of dwarf novae. We studied brightness variations on different time scales: orbital, QPO and flickering. The multicolor BVRI photometry allows to distinguisch the geometrical and physical sources of these variations.