TRANSIENTS

 

 

Characterising FRB through their continuum radio properties

This project aims at studying the late-time or persistent radio emission in two classes of transients: a) compact binary mergers, with particular regard to their connection with GW sources; b) Fast Radio Bursts (FRBs).

 

 

 

 

 

 

 


Radio follow-up of Tidal Disruption Events (TDE)

Theoretical models predict that when a star approaches a supermassive black hole (BH) closer than the tidal radius (∼20 Schwarzschild radii for a 106 solar-mass BH), the BH tidal field is able to overcome the stellar internal gravity and pull it apart. Matter falls onto the BH, producing a powerful flare with peak accretion rates up to 100 times Eddington, which decays with time as t−5/3, i.e a Tidal Disruption Event (TDE).

 

 

A nebular origin for the persistent radio emission of fast radio bursts
Gabriele Bruni1, Luigi Piro, Yuan-Pei Yang, Salvatore Quai, Bing Zhang, Eliana Palazzi, Luciano Nicastro, Chiara Feruglio, Roberta Tripodi, Brendan O’Connor, Angela Gardini, Sandra Savaglio, Andrea Rossi, Ana M. Nicuesa Guelbenzu & Rosita Paladino

Radio follow-up of the X-ray transient in NGC 7793
Bruni, G.; Baldi, R.D.; Panessa, F.; Hernandez-Garcia, L.; Brightman, M.

e-MERLIN observations of the candidate binary supermassive black hole in SDSS J143016.05+230344.4
Bruni, G.; Rodi, J.; Panessa, F.; Hernandez-Garcia, L.; Molina, M.; Malizia, A.; Bazzano, A.; Ubertini, P.

Further monitoring of FRB 20201124A with Swift
O’Connor, B.; Piro, L.; Lotti, S.; Ricci, R.; Bruni, G.; Zhang, B.; Panessa, F.

Detection of a persistent radio source at the location of FRB20201124A with VLA
Ricci, Roberto; Piro, Luigi; Panessa, Francesca; O’Connor, Brendan; Lotti, Simone; Bruni, Gabriele; Zhang, Bing

Observations of FRB 20201124A with Swift/XRT and UVOT
O’Connor, B.; Piro, L.; Lotti, S.; Ricci, R.; Bruni, G.; Zhang, B.

Radio characterization of the candidate source for neutrino event IceCube-201115A
Bruni, Gabriele; Bassani, Loredana; Bazzano, Angela; Fiocchi, Mariateresa; Panessa, Francesca;  Ubertini, Pietro