New CCD Photometry Study of RV UMa

TL;DR

This study provides a detailed CCD photometry analysis of RV UMa, revealing the shortest observed Blazhko modulation period and detecting subtle changes in the star's temperature and radius.

Contribution

It introduces new observational data and analysis of RV UMa, identifying the shortest Blazhko modulation period and physical parameter variations.

Findings

Shortest Blazhko modulation period observed: 0.468002 days

Detected small but definite changes in temperature and radius

Compared results with previous literature and discussed implications

Abstract

All available CCD observation of RV UMa have been analyzed to obtain an accurate mathematical description of the ligh variation. We discuss in this paper a new study of variable star RV UMa, a short period RRab star, in orther to determine through the light curve and the physical parameters, the presence of "Blazhko effect". The Star were observed for a total of 839 sessions shooting, and exhibits light curve modulation with the shortest modulation Period=0.468002 ever observed. The result detect small but definite modification in temperature and mean radius of the star itself. All results are compared with previously published literature values and discussed.