Matteo Ferro
A5050241176- Gamma-ray bursts and supernovae
- Astrophysical Phenomena and Observations
- Stellar, planetary, and galactic studies
- Pulsars and Gravitational Waves Research
- Methane Hydrates and Related Phenomena
- Astronomy and Astrophysical Research
- Astro and Planetary Science
- Geophysics and Gravity Measurements
- SAS software applications and methods
- Medical Imaging and Analysis
University of Insubria
2023-2024
Brera Astronomical Observatory
2023-2024
Abstract We present James Webb Space Telescope (JWST) and Hubble (HST) observations of the afterglow GRB 221009A, brightest gamma-ray burst (GRB) ever observed. This includes first mid-IR spectra any GRB, obtained with JWST/Near Infrared Spectrograph (0.6–5.5 micron) Mid-Infrared Instrument (5–12 micron), 12 days after burst. Assuming that intrinsic spectral slope is a single power law, F ν ∝ − β , we obtain ≈ 0.35, modified by substantial dust extinction A V = 4.9. suggests above notional...
ABSTRACT GRB 230812B is a bright and relatively nearby (z = 0.36) long gamma-ray burst (GRB) that has generated significant interest in the community thus been observed over entire electromagnetic spectrum. We report 80 observations X-ray, ultraviolet, optical, infrared, submillimetre bands from GRANDMA (Global Rapid Advanced Network for Multimessenger Addicts) network of observatories observational partners. Adding complementary data literature, we then derive essential physical parameters...
The detection and follow-up observations of high-redshift (z>6) gamma-ray bursts (GRBs) provide a unique opportunity to explore the properties distant Universe. Unfortunately, they are rather rare, with only dozen them identified so far. We present here discovery GRB second highest spectroscopic redshift measured date, GRB,240218A at z=6.782, broadband analysis its afterglow. Following by high-energy satellites, we obtained multi-epoch multi-wavelength photometric observations, from 68...
Context. GRB 211106A and 211227A are two recent gamma-ray bursts (GRBs) whose initial X-ray position enabled us to possibly associate them with bright, low-redshift galaxies ( z < 0.7). The prompt emission properties suggest that is a genuine short-duration short extended emission. Therefore, they likely be produced by compact binary merger. However, classification based solely on the can misleading. Aims. possibility of having GRBs occurring in local Universe makes ideal targets for...
Abstract Thanks to the rapidly increasing time-domain facilities, we are entering a golden era of research on gamma-ray bursts (GRBs). In this Letter, report our observations GRB 240529A with Burst Optical Observer and Transient Exploring System, 1.5 m telescope at Observatorio de Sierra Nevada, 2.5 Wide Field Survey Telescope China, Large Binocular Telescope, Telescopio Nazionale Galileo. The prompt emission shows two comparable energetic episodes separated by quiescence time roughly 400 s....
Fast Radio Bursts (FRBs) are highly energetic radio transients with millisecond duration, whose physical origin is still unknown. Many models consider magnetars as possible FRB sources, supported by the observational association of FRBs galactic magnetar SGR 1935+2154. Magnetars also thought to be source power a fraction Gamma Ray (GRBs), opening possibility that two extreme phenomena have common progenitor. In this work we put constrains hypothesis searching for associations between GRBs...
Context. Fast radio bursts (FRBs) are highly energetic transients with a duration of some milliseconds. Their physical origin is still unknown. Many models consider magnetars as possible FRB sources, which supported by the observational association FRBs galactic magnetar SGR 1935+2154. Magnetars also thought to be source power fraction gamma-ray (GRBs), means that two extreme phenomena might have common progenitor. Aims. We placed constrains on this hypothesis searching for associations...
Thanks to the rapidly increasing time-domain facilities, we are entering a golden era of research on gamma-ray bursts (GRBs). In this Letter, report our observations GRB 240529A with Burst Optical Observer and Transient Exploring System, 1.5-meter telescope at Observatorio Sierra Nevada, 2.5-meter Wide Field Survey Telescope China, Large Binocular Telescope, Telescopio Nazionale Galileo. The prompt emission shows two comparable energetic episodes separated by quiescence time roughly 400 s....
GRB~230812B is a bright and relatively nearby ($z =0.36$) long gamma-ray burst (GRB) that has generated significant interest in the community thus been observed over entire electromagnetic spectrum. We report 80 observations X-ray, ultraviolet, optical, infrared, sub-millimeter bands from GRANDMA (Global Rapid Advanced Network for Multi-messenger Addicts) network of observatories observational partners. Adding complementary data literature, we then derive essential physical parameters...
Giant flares, short explosive events releasing up to 10$^{47}$ erg of energy in the gamma-ray band less than one second, are most spectacular manifestation magnetars, young neutron stars powered by a very strong magnetic field, 10$^{14-15}$ G magnetosphere and possibly higher star interior. The rate occurrence these rare flares is poorly constrained, as only three have been seen from different magnetars Milky Way Large Magellanic Cloud about 50 years since beginning astronomy. This sample...
Context: GRB 211106A and 211227A are recent gamma-ray bursts (GRBs) with initial X-ray positions suggesting associations nearby galaxies (z < 0.7). Their prompt emission characteristics indicate is a short-duration short extended emission, likely originating from compact binary mergers. However, classifying solely based on can be misleading. Aims: These GRBs in the local Universe offer opportunities to search for associated kilonova (KN) study host galaxy properties detail. Methods: We...