Comparison of the infrared magnitudes of the eclipsing variable star epsilon Aur during the two main luminance lows using observations from 1980 to 2015

TL;DR

This study analyzes infrared photometric data of epsilon Aur during its two main eclipses (1982 and 2010), revealing similarities in light curves, asymmetries, and color changes indicative of phase shifts and short-term brightness variations.

Contribution

It provides a comparative analysis of infrared magnitudes during two major eclipses, highlighting phase-related color changes and brightness variations in epsilon Aur.

Findings

Light curves are similar in both eclipses.

Asymmetry observed in the light curves.

Short-term brightness increases detected.

Abstract

The data of photometric measurements of the long-period eclipsing variable epsilon Aur in the two main minima 1982 and 2010 in the spectral range of 1--5 microns are presented. Noted is the similarity of light curves in eclipse, its asymmetry, and availability of the short interval increased brightness. We are detecting the phase changing of the indicator color J-M and the effect of short-time changing of the color to be more blue at the moments during the beginning and end of the eclipse.