STRW local: Lunch Talks

Lunch Talks

Data mining Gaia DR2: the quest for Pre-Main Sequence Stars (and their discs)

As the birth-sites of planets, protoplanetary discs have become the object of intense study during the last years. Constraining their typical lifetimes, masses and/or sizes is crucial to understand the process of planet formation. These objects are a natural by-product of early stellar evolution, and therefore a high fraction of Pre-Main Sequence Stars (PMS) are surrounded by a protoplanetary disc. The current census of PMS (and discs) has been limited due to instrumental restrictions (i.e. sensitivity), but this situation is going to change thanks to projects like Gaia. In this talk I will present the results of applying machine learning, density-based clustering algorithms to the Gaia DR2 dataset with the aim of identifying new members of the Ophiuchus star forming region. I will briefly describe our methodology and present the ~240 potential new PMS that we find.


Unless announced otherwise, the lunch talks start at 12:50 sharp. The approximate duration of the lunch talk is given above, and additional time will be given for questions and discussion following the presentation. Please make sure that you take ample time to pick up your lunch beforehand.

Information for Speakers and Hosts: Talks are limited to 25 minutes, with 5 additional minutes for questions. Hosts are responsible for bringing the speaker to the correct room in ample time to set up laptops etc., and for ensuring the speaker also has time for lunch.

For questions and/or suggestions concerning the lunch talks, please contact Themiya Nanayakkara () or Alvaro Hacar ()).