MG15 - Talk detail |
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Participant |
Tonelli, Francesco | |||||||
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Institution |
INFN, Laboratori Nazionali del Gran Sasso - Via G. Acitelli,22 - L'aquila - - Italy | |||||||
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Session |
bn8 |
Accepted |
Yes |
Order |
12 |
Time |
19:00 | 15' |
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Talk |
Oral abstract |
Title |
Gravitational waves echoes from Compact Stars | |||||
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Abstract |
It has recently been claimed that a gravitational wave echo has been produced in the GW170817 event with a frequency of about 72 Hz. Gravitational wave echoes can be produced after the merging of compact stars if the post-merger object features a photon-sphere. In this talk I will speculate on the possibility that, during the merging, an ultracompact star is produced that crosses the photon-sphere line in the mass radius diagram. Considering realistic equation of states, the estimated frequencies of the GW echoes are of the order of tens of kHz. |
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Pdf file |
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