Within systems producing gravitational waves detectable by current gravitational wave detectors, those that also yield electromagnetic signals are particularly interesting. Binary neutron stars do so in a spectacular way, which has been illustrated by the event GW170817. In such system, strong gravity effects on matter prompted signals in a wide spectra and timescales providing crucial complementary information to that gathered from gravitational waves. For black hole - neutron star binaries, while in principle similar signals are possible, it requires configurations (low mass ratios/high BH spins) so far not strongly supported by available observations. We will discuss a relevant mechanism that allows 'realistic' systems to nevertheless yield an electromagnetic counterpart.
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2021-02-24T11:00:002021-02-24T12:00:00Multimessenger signals from BHNS systems with 'realistic' mass ratiosEvent Information:
Within systems producing gravitational waves detectable by current gravitational wave detectors, those that also yield electromagnetic signals are particularly interesting. Binary neutron stars do so in a spectacular way, which has been illustrated by the event GW170817. In such system, strong gravity effects on matter prompted signals in a wide spectra and timescales providing crucial complementary information to that gathered from gravitational waves. For black hole - neutron star binaries, while in principle similar signals are possible, it requires configurations (low mass ratios/high BH spins) so far not strongly supported by available observations. We will discuss a relevant mechanism that allows 'realistic' systems to nevertheless yield an electromagnetic counterpart.Event Location:
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