226 citations · 735 across the 25 of their papers we have counts for
18 papers · 1 filter
Fires in the deep: The luminosity distribution of early-time gamma-ray-burst afterglows in light of the Gamow Explorer sensitivity requirements
D. A. Kann, N. E. White, G. Ghirlanda +58
Gamma-ray bursts (GRBs) are ideal probes of the Universe at high redshift (z > 5), pinpointing the locations of the earliest star-forming galaxies and providing bright backlights t…
The role of the magnetic fields in GRB outflows
N. Jordana-Mitjans, C. G. Mundell, S. Kobayashi +12
Gamma-ray bursts (GRBs) are bright extragalactic flashes of gamma-ray radiation and briefly the most energetic explosions in the Universe. Their catastrophic origin (the merger of…
A short gamma-ray burst from a proto-magnetar remnant
N. Jordana-Mitjans, C. G. Mundell, C. Guidorzi +10
The contemporaneous detection of gravitational waves and gamma rays from the GW170817/GRB 170817A, followed by kilonova emission a day after, confirmed compact binary neutron-star…
Radio data challenge the broadband modelling of GRB160131A afterglow
M. Marongiu, C. Guidorzi, G. Stratta +6
Context. Gamma-ray burst (GRB) afterglows originate from the interaction between the relativistic ejecta and the surrounding medium. Consequently, their properties depend on severa…
Coherence scale of magnetic fields generated in early-time forward shocks of GRBs
N. Jordana-Mitjans, C. G. Mundell, R. J. Smith +6
We report the earliest-ever detection of optical polarization from a GRB forward shock (GRB 141220A), measured s after the burst using the multi-colour RINGO3 optica…
New high-frequency radio observations of the Cygnus Loop supernova remnant with the Italian radio telescopes
S. Loru, A. Pellizzoni, E. Egron +19
Supernova remnants (SNRs) represent a powerful laboratory to study the Cosmic-Ray acceleration processes at the shocks, and their relation to the properties of the circumstellar me…
Observation of inverse Compton emission from a long -ray burst
V. A. Acciari, S. Ansoldi, L. A. Antonelli +301
Long-duration gamma-ray bursts (GRBs) originate from ultra-relativistic jets launched from the collapsing cores of dying massive stars. They are characterised by an initial phase o…
A search for prompt gamma-ray counterparts to fast radio bursts in the Insight-HXMT data
C. Guidorzi, M. Marongiu, R. Martone +118
No robust detection of prompt electromagnetic counterparts to fast radio bursts (FRBs) has yet been obtained, in spite of several multi-wavelength searches carried out so far. Spec…
Low frequency view of GRB 190114C reveals time varying shock micro-physics
K. Misra, L. Resmi, D. A. Kann +25
We present radio and optical afterglow observations of the TeV-bright long Gamma Ray Burst (GRB) 190114C at a redshift of , which was detected by the MAGIC telescope. Our…
Lowly polarized light from a highly magnetized jet of GRB 190114C
N. Jordana-Mitjans, C. G. Mundell, S. Kobayashi +12
We report multi-color optical imaging and polarimetry observations of the afterglow of the first TeV- detected gamma-ray burst, GRB 190114C, using RINGO3 and MASTER II polarimeters…
A cumulative search for hard X/-Ray emission associated with fast radio bursts in Fermi/GBM data
R. Martone, C. Guidorzi, R. Margutti +6
Context. Fast Radio Bursts (FRBs) are millisecond-long bursts uniquely detected at radio frequencies. FRB 131104 is the only case for which a -ray transient positionally and tem…
A search for gamma-ray prompt emission associated with the Lorimer Burst FRB010724
C. Guidorzi, M. Marongiu, R. Martone +6
No transient electromagnetic emission has yet been found in association to fast radio bursts (FRBs), the only possible exception (3sigma confidence) being the putative gamma-ray si…
Constraints on the environment and energetics of the Broad-Line Ic SN2014ad from deep radio and X-ray observations
M. Marongiu, C. Guidorzi, R. Margutti +3
Broad-line type Ic Supernovae (BL-Ic SNe) are characterized by high ejecta velocity ( km s) and are sometimes associated with the relativistic jets typical of…
Investigating the high-frequency spectral features of SNRs Tycho, W44 and IC443 with the Sardinia Radio Telescope
S. Loru, A. Pellizzoni, E. Egron +20
The main characteristics in the radio continuum spectra of Supernova Remnants (SNRs) result from simple synchrotron emission. In addition, electron acceleration mechanisms can shap…
Single-dish and VLBI observations of Cygnus X-3 during the 2016 giant flare episode
E. Egron, A. Pellizzoni, M. Giroletti +34
In September 2016, the microquasar Cygnus X-3 underwent a giant radio flare, which was monitored for 6 days with the Medicina Radio Astronomical Station and the Sardinia Radio Tele…
Imaging of SNR IC443 and W44 with the Sardinia Radio Telescope at 1.5 GHz and 7 GHz
E. Egron, A. Pellizzoni, M. N. Iacolina +33
Observations of supernova remnants (SNRs) are a powerful tool for investigating the later stages of stellar evolution, the properties of the ambient interstellar medium, and the ph…
Observations of Supernova Remnants with the Sardinia Radio Telescope
E. Egron, A. Pellizzoni, S. Loru +11
In the frame of the Astronomical Validation activities for the 64m Sardinia Radio Telescope, we performed 5-22 GHz imaging observations of the complex-morphology supernova remnants…
Modelling high-resolution spatially-resolved Supernova Remnant spectra with the Sardinia Radio Telescope
Sara Loru, Alberto Pellizzoni, Elise Egron +12
Supernova Remnants (SNRs) exhibit spectra featured by synchrotron radio emission arising from the relativistic electrons, and high-energy emission from both leptonic (Bremsstrahlun…