2.2k citations
Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- Sapienza University of RomeIT497 papers
- National Institute for AstrophysicsIT152 papers
- Astronomical Observatory of CapodimonteIT83 papers
- Centro Brasileiro de Pesquisas FísicasBR81 papers
- University of FerraraIT75 papers
- Astronomical Observatory of RomeIT65 papers
- Institute for Space Astrophysics and PlanetologyIT64 papers
- European Southern ObservatoryCL62 papers
- International Center for Relativistic Astrophysics NetworkAM60 papers
- Brera Astronomical ObservatoryIT58 papers
- Osservatorio Astronomico di PadovaIT57 papers
- Centre National de la Recherche ScientifiqueFR52 papers
49 papers · 1 filter
Evidence for a multipolar magnetic field in SGR J1745-2900 from X-ray light-curve analysis
Rafael C. R. de Lima, Jaziel G. Coelho, Jonas P. Pereira +2
SGR J1745-2900 was detected from its outburst activity in April 2013 and it was the first soft gamma repeater (SGR) detected near the center of the Galaxy (Sagittarius A). We u…
The photon time delay in magnetized vacuum magnetosphere
A. W. Romero Jorge, E. Rodríguez Querts, H. Pérez Rojas +4
We study the transverse propagation of photons in a magnetized vacuum considering radiative corrections in the one-loop approximation. The dispersion equation is modified due to th…
Investigation of the Gamma-ray Spectrum of CTA 102 During the Exceptional Flaring State in 2016-2017
N. Sahakyan
The flat spectrum radio quasar CTA 102 entered an extended period of activity from 2016 to 2017 during which several strong -ray flares were observed. Using Fermi large area tel…
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…
Extreme & High Synchrotron Peak Blazars beyond 4FGL: The 2BIGB -ray catalogue
Bruno Arsioli, Yu-Ling Chang, Blessing Musiimenta
This paper presents the results of a -ray likelihood analysis over all the extreme and high synchrotron peak blazars (EHSP & HSP) from the 3HSP catalogue. We investigate 201…
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…
The newborn black hole in GRB 191014C proves that it is alive
R. Moradi, J. A. Rueda, R. Ruffini +1
A multi-decade theoretical effort has been devoted to finding an efficient mechanism to use the rotational and electrodynamical extractable energy of a Kerr-Newman black hole (BH),…
Effects of the modification of gravity on the production of primordial black holes
Sergio Andres Vallejo-Pena, Antonio Enea Romano
The enhancement of the spectrum of primordial comoving curvature perturbation can induce the production of primordial black holes (PBH) which could account for part of present…
Self-Similarities and Power-laws in the Time-resolved Spectra of GRB 190114C, GRB 130427A, GRB 160509A, and GRB 160625B
L. Liang, R. Ruffini, J. A. Rueda +3
[Shortened] CONTEXT: [...] AIMS: To identify and verify the BdHNe I properties in the additional sources GRB160509A, GRB160625B and GRB1340427A, and compare and contrast the result…
MeV, GeV and TeV neutrinos from binary-driven hypernovae
Stefano Campion, Juan David Uribe-Suárez, Julio David Melon Fuksman +1
We analyze neutrino () emission channels in energetic ( erg) long gamma-ray bursts within the binary-driven hypernova model. The binary-driven hypernova progeni…
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…
Distinguishing Dirac from Majorana neutrinos in a microwave cavity
Mehdi Abdi, Roohollah Mohammadi, She-Sheng Xue +1
We propose a novel scheme for distinguishing between the Dirac and Majorana nature of neutrinos via interaction of a neutrino beam with microwave photons inside a cavity. We study…
The Open Universe VOU-Blazars tool
Yu-Ling Chang, Carlos Brandt, Paolo Giommi
Blazars are a remarkable type of Active Galactic Nuclei (AGN) that are playing an important and rapidly growing role in today's multi-frequency and multi-messenger astrophysics. In…
The 3HSP catalogue of Extreme & High Synchrotron Peaked Blazars
Yu-Ling Chang, Bruno Arsioli, Paolo Giommi +2
High synchrotron peaked blazars (HSPs or HBLs) play a central role in very high energy (VHE) gamma-ray astronomy, and likely in neutrino astronomy. Currently, the largest compilati…
Circular polarization of cosmic photons due to their interactions with Sterile neutrino dark matter
M. Haghighat, S. Mahmoudi, R. Mohammadi +2
In this paper, we explore the possibility of the polarization conversion of a wide energy range of cosmic photons to the circular polarization through their interactions with right…
Neutrino oscillations in a neutrino-dominated accretion disk around a Kerr BH
J. D. Uribe, E. A. Becerra-Vergara, J. A. Rueda
In the binary-driven hypernova model of long gamma-ray bursts, a carbon-oxygen star explodes as a supernova in presence of a neutron star binary companion in close orbit. Hypercrit…
A new sample of X-ray selected Swift/SDSS faint blazars and blazar candidates
Sara Turriziani, Bernardo Fraga, Paolo Giommi
Our present knowledge of the properties of blazars mostly comes from small samples of bright objects, especially regarding studies on their cosmological evolution. Statistically we…
Bose-Einstein condensation in relativistic plasma
M. A. Prakapenia, G. V. Vereshchagin
The phenomenon of Bose-Einstein condensation is traditionally associated with and experimentally verified for low temperatures: either of nano-Kelvin scale for alkali atoms [1-3] o…
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…
Extra dimensions' influence on the equilibrium and radial stability of strange quark stars
José D. V. Arbañil, Geanderson A. Carvalho, Ronaldo V. Lobato +2
We analyze the influence of extra dimensions on the static equilibrium configurations and stability against radial perturbations. For this purpose, we solve stellar structure equat…
Chirping compact stars: gravitational radiation and detection degeneracy with binary systems A conceptual pathfinder for space-based gravitational-wave observatories
J. F. Rodriguez, J. A. Rueda, R. Ruffini +3
Compressible, Riemann S-type ellipsoids can emit gravitational waves (GWs) with a chirp-like behavior (hereafter chirping ellipsoids, CELs). We show that the GW frequency-amplitude…
The blackholic quantum
J. A. Rueda, R. Ruffini
We show that the high-energy emission of GRBs originates in the "inner engine": a Kerr black hole (BH) surrounded by matter and a magnetic field . It radiates a sequence of di…
A robotic pipeline for fast GRB followup with the Las Cumbres observatory network
R. Martone, C. Guidorzi, C. G. Mundell +9
In the era of multi-messenger astronomy the exploration of the early emission from transients is key for understanding the encoded physics. At the same time, current generation net…
Constraints on Black Hole Jet Models Used As Diagnostic Tools of Event Horizon Telescope Observations of M87
Brian Punsly
Jet models of Event Horizon Telescope (EHT) data should also conform to the observed jet profiles just downstream. This study evaluates conformance of models of black hole jets to…