Observational Astrophysics Seminar: The structure of thick discs in nearby galaxies

Monday 12 June 2023, 3:00pm to 4:00pm

Venue

Bowland North Seminar Room 23

Open to

Alumni, Postgraduates, Public, Staff, Undergraduates

Registration

Registration not required - just turn up

Event Details

The structure of thick discs in nearby galaxies by Dr Marie Martig

Please try to arrive at or before 15:00

Post Talks Refreshments: Physics C36

Abstract:

Thick disks are ubiquitous in nearby spiral galaxies, and many mechanisms have been proposed to explain their formation. I will show how, in simulated galaxies, thick disks arise from the superposition of mono-age populations (MAPs). I will discuss the connection between the properties of the MAPs and the global structure of thick disks, in particular their shape and their radial age gradient. I will also show how this can be linked with a galaxy’s recent merger history: mergers create gaps in the vertical structure of MAPs, and give rise to thick disks that are clearly distinct from thin disks. I will finally present results on the age structure of the Milky Way and a few nearby galaxies. I will end the talk with an introduction to the GECKOS survey, a new VLT/MUSE large programme targeting 35 nearby edge-on galaxies.

If you are planning on joining online, please join at least 5 mins early to check for technical issues.

Teams link: https://teams.microsoft.com/l/meetup-join/19%3a733e16cef012444196c8ad9fd91e46c1%40thread.tacv2/1685527002746?context=%7b%22Tid%22%3a%229c9bcd11-977a-4e9c-a9a0-bc734090164a%22%2c%22Oid%22%3a%22bb9e8287-7316-40b7-b586-f2d3d2783de9%22%7d

Contact Details

Name Matthew Thorne
Email

m.thorne1@lancaster.ac.uk