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Colloquia Series

For more information on colloquia at the Centre for Astrophysics and Supercomputing please contact Dr. Simon Stevenson ()

Swinburne Virtual Reality Theatre
AR Building, Room 104
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2023 Colloquia

Wednesday Mar 22, 11:00
Natasha Van Bemmel (Swinburne)
Student Review: Natasha Van Bemmel CoC
Exploring the Optical and Infrared Fast Transient Universe
Tuesday Mar 21, 10:30
Hugo Walsh ()
Student Review: Hugo Walsh: CoC
Tuesday Mar 7, 10:30
Nimas (Swinburne)
Student Review: Nimas CoC
Tuesday Feb 28, 14:00
Tyler Hughes (Swinburne)
Student Review: TBD
Tuesday Feb 28, 10:30
Renee Key (CAS)
Student Review: MCR: Renee Key
Tuesday Feb 21, 13:00
Student Review: Atharva Kulkarni CoC
Tuesday Feb 21, 10:30
Student Review: Adam Ussing MCR
Password: 059918
Thursday Feb 16, 10:30
Jonah Gannon (Swinburne)
Colloquium: TBD
Tuesday Feb 14, 10:30
Stuart Lyall (Swinburne)
Student Review: Stuart Lyall DTR
Wednesday Feb 8, 10:30
Connor Bottrell (University of Tokyo)
Colloquium: tbd
Tuesday Feb 7, 10:30
Antonia Fernandez Figueroa (Swinburne)
Student Review: CoC
Thursday Feb 2, 10:30
Michael Murphy (Swinburne)
Colloquium: Fundamental physics with solar twins
The Standard Model of nature's laws provides no explanation for the fundamental constants, like electromagnetism's strength, alpha. It is therefore up to experiments to test whether fundamental constants are, indeed, constant and universal, or instead vary and depend on other physical parameters. I will describe a new probe of alpha's constancy within our Galaxy, solar twin stars, and show our first results which have an ensemble precision of 12 parts-per-billion. This is already the best astronomical measurement of any fundamental constant so far. The results derive from archival high-resolution optical spectra (HARPS) from the ESO 3.6-m telescope, so there is considerable scope for extending them using larger facilities. Our goal is to map alpha across the Milky Way and, importantly, its widely-varying dark matter density field. This will be a completely new, direct test of physics beyond the Standard Model. I will report our discovery of the most distant solar twins and analogues, up to 4kpc closer to the Galactic Centre, as the first step towards that goal, and outline current and future work.
Tuesday Jan 31, 10:30
Student Review: Daniel McPherson DTR