Jul 5 – 10, 2021
Europe/Rome timezone

Kilonova emission observed so far: a comparison with AT2017gfo

Jul 5, 2021, 5:45 PM
25m
Invited talk in the parallel session GRB 170817A and Binary Models GRB 170817A and Binary Models

Speaker

Andrea Rossi (Istituto Nazionale di Astrofisica (INAF))

Description

AT2017gfo is the first kilonova (KN) that could be extensively monitored in time both photometrically and spectroscopically. Moreover, it is the first optical counterpart of a gravitational wave source and it is associated with the short gamma-ray burst GRB 170817A. Here I present our search for the fingerprints of AT2017gfo-like kilonova emissions in the optical/NIR light curves of 39 short GRBs with known redshift. Afterwards, I show how, for the first time, our results allow us to study separately the range of luminosity of the blue and red components of AT2017gfo-like kilonovae in short GRBs. With these results at hand, I show up to which redshift a KN can be followed up by some of the current and future observatories.

Primary author

Andrea Rossi (Istituto Nazionale di Astrofisica (INAF))

Co-authors

Giulia Stratta (INAF/OAS-Bologna) Eliana Palazzi (INAF OAS) Elisabetta Maiorano (INAF/OAS-Bologna)

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Paper