This Thursday, at 20:10 UK time, Astronomy Twitter Journal Club is going to be considering white dwarves, supernova progenitors and how this all relates to this year’s Nobel Physics Prize, which has been awarded to Saul Perlmutter, Brian Schmidt and Adam Riess, “…for the discovery of the accelerating expansion of the Universe through observations of distant supernovae”.
The week Matt Burleigh (@matt_burleigh) is taking charge of the meeting and he’s issued a challenge:
I’m chairing #astroJC this week. Convince me there’s nowt wrong with SN Ia as standard candles…
He’s also written a longer post on the topic, explaining the outstanding questions surrounding Type Ia supernovae in more detail.
For more information/background check out this video from the Nottingham Sixty Symbols project:
Finally, the key papers from the new Nobel Laureates are Measurements of Omega and Lambda from 42 High-Redshift Supernovae (Perlmutter et al 1999) and Observational Evidence from Supernovae for an Accelerating Universe and a Cosmological Constant (Riess et al 1998).
Hope you can all join in on Thursday. I think it’s going to be an interesting discussion.