September 26, 2023

Speaker: Alessandra Corsi (Texas Tech University)

Contact Information: Alessandra.Corsi@ttu.edu

Title: Multi-messenger observations of cosmic collisions and explosions: progenitors, relativistic ejecta, and remnants

Abstract: The births and mergers of neutron stars and black holes, the most exotic objects in the universe, can launch the fastest cosmic jets (gamma-ray bursts; GRBs) and shake the very fabric of space-time with gravitational waves. GW170817, the merger of two neutron stars witnessed through both its gravitational wave siren and its glow at all wavelengths of light, marked the beginning of a golden age in multi-messenger astrophysics. While the GW siren of GW170817 has directly confirmed that at least some short GRBs originate from NS-NS mergers, the smoking gun linking long GRBs to core collapses i.e., the association with stripped-envelope core-collapse supernovae, has been challenged by several electromagnetic (EM) observations. In this context, I will discuss how observations at radio wavelengths can probe the ejecta and environments of compact binary mergers and extreme core collapses and help unveil their progenitors and remnants. I will then highlight opportunities and challenges ahead, as new observational facilities will transform a trickle of multi-messenger discoveries into a flood.

Visitor's room: 103A

Visit Schedule:

Wednesday (September 27, 2023):

• 9:30 a.m.:  Michael Strauss (113 Peyton; will be wearing a mask)

• 10:00 a.m.: Jenny Greene (001 Peyton)

• 10:30 a.m.:

• 11:00 a.m.: Gaspar Bakos (133 Peyton).  (Possibly through zoom; family is sick, trying to recover ... )

• 11:30 a.m.: Alejandro Cárdenas-Avendaño

• 12:00 p.m.: Wunch

• 12:30 p.m.: Wunch

• 1:00 p.m.: Jeremy Goodman (Zoom: https://princeton.zoom.us/j/91555781720 ).

• 1:30 p.m.: Jo Dunkley (visitor office, 103A)

• 2:00 p.m.:  Tiffany Nichols (visitor office, 103A)

• 2:30 p.m.: Charlotte Ward (132 Peyton)

• 3:00 p.m.:  Allen Foster (visitor office, 103A)

• 3:30 p.m.:

• 4:00 p.m.-4:30pm:   Eliot Quataert (103A)

• 5:00 p.m.: 

Dinner Sign-up - add your name here:

Wednesday (September 27, 2023)

1. Alessandra Corsi

2. Faculty Host: Josh Winn

3. Postdoc Host: Alejandro Cárdenas-Avendaño

4. Jared Siegel

5. Hengrui Zhu

6. Minghao Guo

7. Allen Foster 

8.  Yixian Chen

STUDENTS HAVE PRIORITY.

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