Skowron Dorota M
Astronomical Observatory, University of Warsaw, Aleje Ujazdowskie 4, 00-478 Warsaw, Poland.
Proc Int Astron Union. 2024 Feb 6;18(Suppl 376):180-194. doi: 10.1017/S1743921323003083.
Disentangling the structural components of the Milky Way requires knowledge of distances to various classes of objects, both young, which trace the Galactic disk, and old, which trace the Galactic bulge and halo. Variable stars that obey period-luminosity relations are perfect distance indicators for such studies. Here we discuss recent findings on the structure of our galaxy, inferred from period-luminosity relations for both young, old and intermediate-age variable stars, including Cepheids, RR Lyrae stars, Scuti stars, and long-period variables.
厘清银河系的结构组成部分需要了解各类天体的距离,包括年轻的天体(它们描绘了银河系盘)和古老的天体(它们描绘了银河系核球和晕)。遵循周光关系的变星是此类研究的理想距离指示器。在此,我们讨论从年轻、古老和中年变星(包括造父变星、天琴座RR型变星、盾牌座δ型变星和长周期变星)的周光关系推断出的关于我们星系结构的最新发现。