May 24, 2019
From 10:30 until 12:00

Dipanjan Mitra National Centre for Radio Astrophysics, Tata Institute of Fundamental...

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Astro lunch 05.06.2018

June 5, 2018
From 12:45 until 13:45

Paolo Bianchini (McMaster University/ObAS)

A three-dimensional view of the internal rotation of globular clusters

Globular clusters (GCs) are old stellar systems for long considered spherical and non-rotating. However, in recent years, an increasing number of line-of-sight kinematic studies have shown evidence of significant amount of internal angular momentum. In this talk, I will present my effort in modelling and analyzing signatures of rotation in three-dimension, including line-of-sight velocities and proper motions. In particular, I will discuss my ongoing work with Gaia DR2 dataset and outline the implications of a significant amount of angular momentum for the formation mechanism of proto-GCs and their dynamical evolution.

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