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“Neutron
star mergers as cosmic factories of heavy elements"
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Date: |
Download-files: |
Time: |
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Thursday, 08 April 2021 |
Video-Recording for any system with MP4-support
- Video.mp4 (ca.359 Mb) - Video_with_eng_sub.mp4 (ca. 366 Mb) |
15:15 – 16:30
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Abstract:
Neutron star mergers had long been
suspected to produce gravitational waves,
gamma ray bursts and -by some- to produce
heavy "rapid neutron capture" or
"r-process" elements. While
overall convincing, all these conjectures were only
based on indirect arguments and none was
proven by direct observations.
This changed on August 17, 2017: a
gravitational wave signal from a merging
neutron star binary was detected, closely
followed by a short burst of gamma-rays
and week-long transients across the
electromagnetic spectrum coming from the
radioactive decay of freshly synthesised
r-process elements.
In this talk I will give an overview over
neutron star mergers, their roles as
precious laboratories for (astro-)physics
and I will focus in particular on their role
for the production of heavy elements.
Speaker today: Stephan Rosswog
(Department of Astronomy,
Stockholm University; The Oskar Klein Centre for Cosmoparticle Physics)