Events

Back to Listing

NCSA staff who would like to submit an item for the calendar can email newsdesk@ncsa.illinois.edu.

Physics Colloquium - "Shining New Light on the Physics of Neutron Star Mergers"

Event Type
Lecture
Sponsor
UIUC Department Of Physics
Location
Via ZOOM - see description for link
Date
Oct 21, 2020   4:00 pm  
Contact
Suzanne Hallihan
E-Mail
shalliha@illinois.edu
Phone
217-333-3760
Views
22
Originating Calendar
Physics - Colloquium

 In August 2017, the LIGO/Virgo observatory detected gravitational waves for the first time from the merger of two neutron stars.  This cataclysmic event was followed (within seconds) by a burst of gamma-rays and (within 11 hours) by a bright but rapidly-fading visual-wavelength glow.  The properties of the visual emission matched remarkably well existing predictions for radiation powered by the radioactive decay of heavy nuclei, which were synthesized in the expanding neutron-rich merger debris via the rapid neutron capture process.  I will describe ongoing efforts to interpret LIGO's first merger from both the electromagnetic and gravitational wave sides, and the resulting implications for the origin of the heaviest elements in the universe and the equation of state of nuclear density matter.  I will place these results in the context of discoveries made during LIGO/Virgo's recently concluded O3 run and preview the impending "era of multi-messenger astronomy", when by the end of this decade a new merger is detected every few days.

The ZOOM link will be sent on Wednesday morning to the Physics Faculty, Graduate student, PDRA, and AP mailing lists. If you are not on one of those lists and are interested in attending, please email Suzanne Hallihan at shalliha@illinois.edu for the link.

 

link for robots only