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Participant |
Nissanke, Samaya | |||||||
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Institution |
Radboud University - Heyendaalseweg 135 - Nijmegen - Nijmegen - Netherland | |||||||
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Session |
BN3 |
Accepted |
Yes |
Order |
1 |
Time |
14:30 | 25' |
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Talk |
Oral abstract |
Title |
Follow the Chirp: seeing and listening to neutron star mergers. | |||||
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Abstract |
The mergers of binary neutrons stars are amongst some of the most violent events in the Universe. The physics driving these events in strongly curved dynamic spacetimes are extremely complex but still remain elusive. These cosmic laboratories present us now with both a challenge and an opportunity. The challenge is to explain the physics at play in strong-field gravity in Universe. The opportunity is to detect the accompanying electromagnetic (EM) and gravitational radiation for the first time with a suite of time-domain telescopes and newly upgraded gravitational wave (GW) detectors. In this pivotal era of strong-field gravity astronomy, the most compelling astrophysical sources are neutron star binary mergers, which should emit both in electromagnetic and GWs. I will first review the most recent advances in this new field of EM + GW astronomy, which combines three active disciplines: time-domain astronomy, stellar evolution and general relativity. I will discuss the promises of this convergence by illustrating the wealth of astrophysical information that a combined EM+GW measurement would immediately bring. I will then outline the main challenges that lie ahead for this new field in pinpointing the sky location of neutron star mergers using GW detectors and optical and radio observatories. |
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Pdf file |
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Session |
GW1 |
Accepted |
Yes |
Order |
1 |
Time |
14:30 | 25' |
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Talk |
Oral abstract |
Title |
Black Hole Births: Gravitational Wave Sources and Electromagnetic Outflows | |||||
| Coauthors | ||||||||
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Abstract |
Gravitational Waves (GW) from mergers of neutron star binaries, neutron-star black hole binaries and black-hole black hole binaries are highly anticipated discoveries for Advanced LIGO and Virgo starting this September in 2015. A subset of these events could be associated with a transient EM counterpart from the canonical to the more speculative. I will give an overview of the rich astrophysical basis of the GW source modeling and proposed set of EM signatures. I will discuss the remaining questions about the EM predictions and their current observational status. I will conclude by discussing how combined GW+EM measurements will enable unprecedented studies of astrophysics in strong-field gravity, and of binary stellar evolution. |
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Pdf file |
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