The secret of the elixir of youth of blue straggler stars

TL;DR

This paper investigates the rejuvenation process of blue straggler stars in a specific cluster using Gaia EDR3 data and light curve analysis, revealing insights into their mysterious longevity.

Contribution

It introduces a novel analysis combining Gaia data and FARCE telescope observations to uncover the rejuvenation mechanism of blue straggler stars.

Findings

Identification of a blue straggler star in the Ptolemy cluster.

Discovery of its rejuvenation process through light curve analysis.

Enhanced understanding of blue straggler star evolution.

Abstract

Using Gaia EDR3, we study the most spectacular and photogenic cluster of Ptolemy. After deriving its membership, we identify in its colour-magnitude diagram a star that definitively decided to straggle and dress in blue. Further analysis with the FARCE telescope allows us to discover in its light curve the secret of its rejuvenation, which we gladly share in this paper. This research is an important contribution to attain the ultimate goal of astronomy as professed by DJ Format.