A5033135952- Gamma-ray bursts and supernovae
- Astrophysics and Cosmic Phenomena
- Particle Detector Development and Performance
- Pulsars and Gravitational Waves Research
- Astrophysical Phenomena and Observations
- Geophysics and Gravity Measurements
- Lightning and Electromagnetic Phenomena
- Solar and Space Plasma Dynamics
- Distributed and Parallel Computing Systems
- Neutrino Physics Research
- Particle Accelerators and Free-Electron Lasers
- Ionosphere and magnetosphere dynamics
- Dark Matter and Cosmic Phenomena
- GNSS positioning and interference
- Scientific Computing and Data Management
- Atomic and Subatomic Physics Research
- Network Time Synchronization Technologies
- Power Line Communications and Noise
- Earthquake Detection and Analysis
- Methane Hydrates and Related Phenomena
- Radio Astronomy Observations and Technology
- Meteorological Phenomena and Simulations
- Anomaly Detection Techniques and Applications
National Institute for Astrophysics
2020-2023
Osservatorio di Astrofisica e Scienza dello Spazio
2021-2023
Institute for Space Astrophysics and Planetology
2023
University of Modena and Reggio Emilia
2021
University of Padua
2021
Osservatorio Astronomico di Padova
2021
Brera Astronomical Observatory
2021
University of Milan
2021
University of Perugia
2021
Fast radio bursts (FRBs) are short (millisecond) pulses originating from enigmatic sources at extragalactic distances so far lacking a detection in other energy bands. Magnetized neutron stars (magnetars) have been considered as the powering FRBs, but connection is controversial because of differing energetics and lack X-ray detections with similar characteristics two classes. We report here by AGILE satellite on April 28, 2020 an burst coincidence very bright Galactic magnetar SGR...
ABSTRACT Magnetars are a promising candidate for the origin of fast radio bursts (FRBs). The detection an extremely luminous burst from Galactic magnetar SGR J1935+2154 on 2020 April 28 added credence to this hypothesis. We report simultaneous and non-simultaneous observing campaigns using Arecibo, Effelsberg, LOFAR, MeerKAT, MK2, Northern Cross telescopes MeerLICHT optical telescope in days months after event. did not detect any significant single pulses down fluence limits between 25 mJy...
Fast radio bursts (FRBs) are millisecond transients observed at cosmological distances. The nature of their progenitors is still a matter debate, although magnetars invoked by most models. proposed FRB-magnetar connection was strengthened the discovery an FRB-like event from Galactic magnetar SGR J1935+2154. In this work, we aim to investigate how prevalent such as J1935+2154 within FRB progenitors. We carried out search in sample seven nearby (< 12 Mpc) galaxies with Northern Cross...
Abstract Astro-rivelatore Gamma a Immagini Leggero (AGILE) is space mission launched in 2007 to study X-ray and gamma-ray astronomy. The AGILE team developed real-time analysis pipelines detect transient phenomena such as bursts (GRBs) react external science alerts received by other facilities. anticoincidence system (ACS) comprises five panels surrounding the detectors reject background-charged particles. It can also hard photons energy range 50–200 keV. ACS data acquisition produces time...
Abstract We present the results of a systematic search and analysis GRBs detected by Astrorivelatore Gamma ad Immagini LEggero (AGILE) MiniCALorimeter (MCAL; 0.4–100 MeV) over time frame 13 yr, from 2007 to 2020 November. The MCAL GRB sample consists 503 bursts triggered MCAL, 394 which were fully onboard with high resolution. about 44% short 56% long GRBs. In addition, 109 partial data acquisitions, providing further detections that can be used for joint analyses or triangulations. More...
FRB 180916 is a most intriguing source at 150 Mpc distance capable of producing repeating fast radio bursts with periodic 16.35 day temporal pattern. We report on the X-ray and $\gamma$-ray observations obtained by AGILE Swift. focused recurrent 5-day time intervals active bursting present results Feb. 3 - 8; 25; Mar. 5 10; 22 28, 2020 during multiwavelength campaign involving high-energy observations. also searched for coincidences millisecond timescales between all known MeV events...
ABSTRACT In this work, we report the results of a 19-month fast radio burst observational campaign carried out with north–south arm Medicina Northern Cross telescope at 408 MHz in which monitored four repeating sources: FRB20180916B, FRB20181030A, FRB20200120E, and FRB20201124A. We present current state instrument detection characterization three bursts from FRB20180916B. Given our observing time, detections are consistent event number expect known rate (2.7 ± 1.9 above 10σ, 38 Jy ms...
The ASTRI Mini-Array is an international collaboration led by the Italian National Institute for Astrophysics. This project aims to construct and operate array of nine Imaging Atmospheric Cherenkov Telescopes study gamma-ray sources at very high energy (TeV) perform stellar intensity interferometry observations. We describe software architecture technologies used implement Online Observation Quality System (OOQS) project. OOQS execute data quality checks on acquired in real-time cameras...
In the multi-messenger era, space and ground-based observatories usually develop real-time analysis (RTA) pipelines to rapidly detect transient events promptly share information with scientific community enable follow-up observations. These can also react science alerts shared by other through networks such as Gamma-Ray Coordinates Network (GCN) Astronomer's Telegram (ATels). AGILE is a mission launched in 2007 study X-ray gamma-ray phenomena. This contribution presents technologies used two...
In the context of Gamma-Flash program, whose objective is to investigate emission high-energy gamma rays and neutrons during thunderstorms, a neutron detection system, based on scintillators coupled photomultiplier tubes, has been developed. The emitted are generated by photoproduction reactions in atmosphere, they have wide range energies, from MeV down meV. this work, effects irradiation tubes their power supply investigated assess quantify dark count rate data acquisition. system was...
We report on a systematic search for hard X-ray and gamma-ray emission in coincidence with fast radio bursts (FRBs) observed by the AGILE satellite. used 13 years of archival data searching time coincidences between exposed FRBs events detectable MCAL (0.4-100 MeV) GRID (50 MeV-30 GeV) detectors at timescales ranging from milliseconds to days/weeks. The current sky coverage allowed us extend high-energy preceding following FRB occurrence. considered all sources currently included catalogues,...
The Cherenkov Telescope Array (CTA) Observatory, with dozens of telescopes located in both the Northern and Southern Hemispheres, will be largest ground-based gamma-ray observatory provide broad energy coverage from 20 GeV to 300 TeV. large effective area field-of-view, coupled fast slewing capability unprecedented sensitivity, make CTA a crucial instrument for future astronomy. To maximise scientific return, array send alerts on transients variable phenomena (e.g. burst, active galactic...
The ASTRI (Astrofisica con Specchi a Tecnologia Replicante Italiana) Project was born as collaborative international effort led by the Italian National Institute for Astrophysics (INAF) to design and realize an end-to-end prototype of Small-Sized Telescope (SST) Cherenkov Array (CTA) in dual-mirror configuration (2M). prototype, named ASTRI-Horn, has been operational since 2014 at INAF observing station located on Mt. Etna (Italy). is now building Mini-Array consisting nine ASTRI-Horn-like...
The Cherenkov Telescope Array (CTA) is an initiative that currently building the largest gamma-ray ground Observatory ever existed. A Science Alert Generation (SAG) system, part of Control and Data Acquisition (ACADA) system CTA Observatory, analyses online telescope data - arriving at event rate tens kHz to detect transient events. SAG also performs quality analysis assess instruments' health during acquisition: this crucial confirm good detections. Python a C++ software library perform...
In the multi-messenger era, astronomical projects share information about transients phenomena issuing science alerts to Scientific Community through different communications networks. This coordination is mandatory understand nature of these physical phenomena. For this reason, astrophysical rely on real-time analysis software pipelines identify as soon possible (e.g. GRBs), and speed up external alerts' reaction time. These can receive Gamma-ray Coordinates Network. work presents a...
The ASTRI Mini-Array is an international collaboration led by the Italian National Institute for Astrophysics (INAF), aiming to construct and operate array of nine Imaging Atmospheric Cherenkov Telescopes (IACTs) study gamma-ray sources at very high energy (TeV) perform stellar intensity interferometry observations. This contribution describes design technologies used team implement Online Observation Quality System (OOQS). main objective OOQS data quality analyses in real-time during...
AGILE is a space mission launched in 2007 devoted to high-energy astrophysics. The Team involved the multi-messenger campaigns send and receive science alerts about transient events shortest time possible. For this reason, developed several real-time analysis pipelines analyse data follow-up external alerts. However, results obtained by these are preliminary must be validated with manual analyses that bottleneck of workflow. To speed up scientific performed scientists, AGILEScience mobile...
In the multi-messenger era, facilities share their results with scientific community through networks such as General Coordinates Network to study transient phenomena (e.g., Gamma-ray bursts) and implement real-time analysis pipelines detect events, reacting science alerts received from other observatories. The fast of events is crucial for detecting counterparts gravitational waves neutrino candidate events. this context, collecting different high-energy satellites observing same event...
Gamma-Flash is an Italian project funded by the Space Agency (ASI) and led National Institute for Astrophysics (INAF), devoted to observation study of high-energy phenomena, such as terrestrial gamma-ray flashes glows produced in Earth's atmosphere during thunderstorms. The project's detectors data acquisition control system (DACS) are placed at "O. Vittori" observatory on top Mt. Cimone (Italy). Another payload will be aircraft observations thunderstorms air. This work presents architecture flow.
AGILE is a space mission launched in 2007 to study X-ray and gamma-ray astronomy. The team developed real-time analysis pipelines detect transient phenomena such as Gamma-Ray Bursts (GRBs) react external science alerts received by other facilities. anti-coincidence system (ACS) comprises five panels (four lateral one on the top) that surround detectors reject background charged particles. It can also hard photons energy range 50 - 200 KeV. acquisition of ACS data produces time series for...
AGILE is an ASI space mission launched in 2007 to study X-ray and gamma-ray phenomena the energy range from $\sim20$ keV $\sim10$ GeV. The Team developed a real-time analysis pipeline for fast detection of transient sources, follow-up external science alerts received through networks such as General Coordinates Network. We new Deep Learning method detecting localizing Gamma-Ray Bursts (GRB) AGILE/GRID sky maps. trained model using maps with GRBs simulated radius 20 degrees center map, which...