November 1, 2022

Speaker: Ben Shappee (Institute for Astronomy, Hawaii)

Contact Information: shappee@hawaii.edu

Title: The All-Sky Automated Survey for Supernovae (ASAS-SN)

Abstract: For the first time, the entire visible sky is being surveyed for the violent, variable, and transient events that shape our universe by the All-Sky Automated Survey for Supernovae (ASAS-SN). Combined, ASAS-SN, Asteroid Terrestrial-impact Last Alert System (ATLAS), The Zwicky Transient Facility (ZTF), the Panoramic Survey Telescope and Rapid Response System (Pan-STARRS), Gaia, and the Transiting Exoplanet Survey Satellite (TESS) now monitor the whole sky, at high cadence with a combined total of 32 telescopes distributed at 9 sites around and above the world. Each survey has a different cadence and depth. I will briefly review major ongoing transient surveys, contrasting their capabilities and goals. I will then use a handful of recent discoveries to highlight opportunities that these new capabilities present. I will focus on multi-messenger astronomy (with LIGO and IceCube); high-cadence, high-precision observations (with Kelper, TESS, and POISE); and the remarkable repeating partial tidal disruption event ASASSN-14ko. I will reflect on the challenges the field will face both now and in the LSST-era. Finally, I will end by describing new and future ways we are making ASAS-SN an even more useful tool for the entire community and introduce the Spectral Classification of Astronomical Transients (SCAT) survey on the UH 2.2m telescope, a new survey that will rapidly trigger on, observe, and classify publicly announced transients fully-automatically without the need for human intervention.

Visitor's room: Room 122

Visit Schedule:

Wednesday (2 Nov. 2022):

  • 9:30 a.m.: Jeremy Goodman (Peyton 129)

  • 10:00 a.m: Adam Burrows (Peyton 105)

  • 10:30 a.m.: Coffee

  • 11:00 a.m.: Eliot (127)

  • 11:30 a.m.: Eliot (127)

  • 12:00 p.m.: Gaspar (133)

  • 12:30 p.m.: Wunch

  • 1:00 p.m.: Wunch

  • 1:30 p.m.: Tea Temim ( Peyton 121)

  • 2:00 p.m.: Matt Coleman (109a)

  • 2:30 p.m.: Robert Lupton (25D? Near the loading dock)

  • 3:00 p.m.:

  • 3:30 p.m.:

  • 4:00 p.m.:

  • 4:30 p.m.: Jenny Greene (001)

  • 5:00 p.m.:


Friday (4 Nov. 2022):

  • 9:30 a.m.:

  • 10:00 a.m.: Gaspar (133)

  • 10:30 a.m.: Coffee

  • 11:00 a.m.: Tamar Faran (107)

  • 12:00 p.m.:Adam Burrows (Peyton 105)

  • 1:00 p.m.:Adam Burrows (Peyton 105)

  • 2:00 p.m.: Charlotte Ward (132)

  • 3:00-3:30 p.m.: Jenny Greene (001)


Dinner Sign-up - add your name here:

Wednesday (2 Nov. 2022)

  1. Ben Shappee

  2. Faculty Host: Peter Melchior

  3. Christian Kragh Jespersen

  4. David Velasco

  5. Robert Lupton

  6. Josh Winn

  7. Christopher Bambic



STUDENTS HAVE PRIORITY.

PLEASE NO MORE THAN 8 PEOPLE (it is more difficult to properly interact with the speaker in larger groups).