November 26, 2019

Speaker: Renée Hlozek

Contact Information: hlozek@dunlap.utoronto.ca

Title: How Do You Solve a Problem like (Photometric) Supernovae?

Abstract: The Large Synoptic Survey Telescope will generate a data deluge: millions of transients and variable sources will need to be classified from their light curves. Photometric LSST Astronomical Time-series Classification Challenge (PLAsTiCC) brings a wide range of models together, simulated under LSST-like conditions for the first time. PLAsTiCC was delivered to the community through a Kaggle challenge, designed to stimulate interest in time-series photometric classification and deliver methodologies that will advance the LSST science case. I will give an overview of the road to PLAsTiCC, the models and the validation of the data, discuss some of its science results. I'll present new results on early classification of transients using active learning to prioritize spectroscopic resources, and discuss advances in the end goal: fully photometric supernova cosmology.

Visit Schedule:

Monday (Nov 25, 2019)

(visitor room: 123 )

  • 10:30 a.m.: Astro Coffee

  • 11:00 a.m.: Neta Bahcall (137)

  • 11:30 a.m.: Philip Mocz (Peyton 120A)

  • 12:00 p.m.: Zack Li

  • 12:30 p.m.: MWunch (Peyton 033)

  • 1:30 pm: Brandon Hensley (Peyton 104)

  • 2:00 p.m.: Roohi Dalal (Peyton 031)

  • 2:30 p.m.: Clare Saunders (Peyton 025A)

  • 3:00 p.m.: Heather Prince (Peyton 031)

  • 3:30 p.m.: Michael Strauss (Peyton 113)

  • 4:00 p.m.: Jenny Greene (Peyton 001)

  • 4:30 p.m.: Women in Physics (Dome Room)

  • 5:30 p.m.: Arun Kannawadi (Peyton 025H)

  • 6:00 p.m.: DINNER WITH HOST - meet in Grand Central

Dinner Sign-up (grad students & postdocs are encouraged; 8 MAX) - add your name here:

1. Speaker

2. Faculty host: Neta Bahcall

3. Clare Saunders

4. Jenny Greene

5. Oliver Philcox

6. Philip Mocz

7. Heather Prince

8. Roohi Dalal

NO MORE THAN 8 PEOPLE (otherwise it is very difficult to properly interact with the speaker)