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Speaker: Vikram Ravi (Caltech)
Contact Information:
Title: Learnings about, and from, fast radio bursts
Abstract:
The origins of the millisecond-duration, energetic (>10^39 erg) fast radio bursts (FRBs) at extragalactic distances remain shrouded in mystery. Although FRBs are likely associated with neutron stars, they appear to occur in a remarkable diversity of environments. Understanding the formation of FRB sources is thus intertwined with problems in neutron-star formation. FRBs additionally form exquisite tracers of the contents and physical conditions of the otherwise "missing" baryons along their sightlines. I have led the development of the Deep Synoptic Array (DSA-110) radio telescope, which is discovering and pinpointing FRBs to host galaxies at a world-leading rate. The host-galaxy and radio-burst properties of the DSA-110 sample shed new and arguably conclusive light on the origins of FRBs. DSA-110 discoveries have, for the first time, sensitively determined the split between the cosmic baryon contents around and in between galaxies, and are enabling direct measurements of the suppression of the matter power spectrum on 0.1—10 Mpc scales.
Visitor's room: 129
Visit Schedule:
Visit Schedule:
Tuesday
9:30 a.m.: Dongzi Li (Peyton 109)
10:00 a.m: Eliot Quataert (127)
10:30 a.m.: Coffee
11:00 a.m.: Colloquium
11:30 a.m.: Colloquium
12:00 p.m.: Bahcall lunch
12:30 p.m.: Bahcall lunch
1:00 p.m.: Bahcall lunch
1:30 p.m.: Anatoly Spitkovsky (123 Peyton)
2:00 p.m.: Nick Loudas (Peyton 025H)
2:30 p.m.: Ani Prabhu
3:00 p.m.: Andrew Saydjari (Peyton 109A)
3:30 p.m.: Sufia Birmingham
4:00 p.m.: Charlotte Ward
4:30 p.m.: Tea Time with Grad Students in Grand Central
5:00 p.m.: Tea Time with Grad Students in Grand Central
Dinner Sign-up - add your name here:
Dinner Sign-up - add your name here:
Day of week (DD MMM. 2024)
Faculty Host: Anatoly Spitkovsky
Postdoc Host: Charlotte Ward
Dongzi Li
Jared Siegel
Nick Loudas
Speaker
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PLEASE NO MORE THAN 8 PEOPLE (it is more difficult to properly interact with the speaker in larger groups).
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