Recent photometry of symbiotic stars - XIII

TL;DR

This paper provides new multicolour photometric data for several classical symbiotic stars, analyzing their light curves to identify key features and outline future research directions.

Contribution

It presents extensive new photometric observations of symbiotic stars, enhancing the dataset for understanding their variability and behavior.

Findings

Detailed light curves of multiple symbiotic stars from 2007 to 2011.

Identification of main features in the stars' brightness variations.

Discussion of problems and future directions for symbiotic star research.

Abstract

We present new multicolour (UBVRcIc) photometric observations of classical symbiotic stars, EG And, Z And, BF Cyg, CH Cyg, CI Cyg, V1329 Cyg, TX CVn, AG Dra, Draco C1, AG Peg and AX Per, carried out between 2007.1 and 2011.9. The aim of this paper is to present new data of our monitoring programme, to describe the main features of their light curves and to point problems for their future investigation. The data were obtained by the method of the classical photoelectric and CCD photometry.