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Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
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199 papers · 1 filter
Where within the 3C 84 jet are -rays produced?
Georgios F. Paraschos, Ioannis Liodakis, Svetlana Jorstad +49
The location of -ray creation and emission within extra-galactic jets is a matter of active debate. One particularly well-suited source to pinpoint the location is the nearby, b…
AGILE gamma-ray detection of the exceptional GRB 221009A
M. Tavani, G. Piano, A. Bulgarelli +47
Gamma-ray emission in the MeV-GeV range from explosive cosmic events is of invaluable relevance to understanding physical processes related to the formation of neutron stars and bl…
The power of the rings: the GRB 221009A soft X-ray emission from its dust-scattering halo
Andrea Tiengo, Fabio Pintore, Beatrice Vaia +11
GRB 221009A is the brightest gamma-ray burst (GRB) ever detected and occurred at low Galactic latitude. Owing to this exceptional combination, its prompt X-ray emission could be de…
A puzzling 2-hour X-ray periodicity in the 1.5-hour orbital period black widow PSR J1311-3430
Andrea De Luca, Martino Marelli, Sandro Mereghetti +3
Time-domain analysis of an archival XMM-Newton observation unveiled a very unusual variability pattern in the soft X-ray emission of PSR J1311-3430, a black widow millisecond pulsa…
Observability of the very-high-energy emission from GRB 221009A
Giorgio Galanti, Lara Nava, Marco Roncadelli +2
The LHAASO Collaboration detected the gamma ray burst GRB 221009A at energies above with a tail extending up to , whose spectral analysis has pres…
Two decades of X-ray observations of the isolated neutron star RX J1856.5-3754: detection of thermal and non-thermal hard X-rays and refined spin-down measurement
Davide De Grandis, Michela Rigoselli, Sandro Mereghetti +6
The soft X-ray pulsar RX J1856.5-3754 is the brightest member of a small class of thermally-emitting, radio-silent, isolated neutron stars. Its X-ray spectrum is almost indistingui…
AGILE Observations of GRB 220101A: A "New Year's Burst" with an Exceptionally Huge Energy Release
Alessandro Ursi, Marco Romani, Giovanni Piano +20
We report the AGILE observations of GRB 220101A, which took place at the beginning of 1st January 2022 and was recognized as one of the most energetic gamma-ray bursts (GRBs) ever…
The first 7 months of the 2020 X-ray outburst of the magnetar SGR J1935+2154
Alice Borghese, Francesco Coti Zelati, Gian Luca Israel +10
The magnetar SGR J1935+2154 underwent a new active episode on 2020 April 27-28, when a forest of hundreds of X-ray bursts and a large enhancement of the persistent flux were detect…
X-ray observation of the Roche-lobe filling white dwarf plus hot subdwarf system ZTF J213056.71+442046.5
S. Mereghetti, N. La Palombara, T. Kupfer +9
ZTF J213056.71+442046.5 is the prototype of a small class of recently discovered compact binaries composed of a white dwarf and a hot subdwarf that fills its Roche-lobe. Its orbita…
Recurrent X-ray flares of the black hole candidate in the globular cluster RZ 2109 in NGC 4472
A. Tiengo, P. Esposito, M. Toscani +7
We report on the systematic analysis of the X-ray observations of the ultra-luminous X-ray source XMMU J122939.7+075333 located in the globular cluster RZ 2109 in the Virgo galaxy…
ARGO-YBJ Observation of the Large-scale Anisotropy During the Solar Minimum between Cycles 23 and 24
Shuwang Cui
This paper reports on the measurement of the large-scale anisotropy in the distribution of cosmic-ray arrival directions using the data collected by the air shower detector ARGO-YB…
Detecting the intrinsic X-ray emission from the O-type donor star and the residual accretion in a Supergiant Fast X-ray Transient during its faintest state
L. Sidoli, K. Postnov, L. Oskinova +4
We report on the results of an XMM-Newton observation of the Supergiant Fast X-ray Transient (SFXT) IGR J08408-4503 performed in June 2020. The source is composed by a compact obje…
IKT16: Discovery of a 22 ms energetic rotation-powered pulsar in the Small Magellanic Cloud
C. Maitra, P. Esposito, A. Tiengo +5
We report here on the discovery with XMM-Newton of pulsations at 22 ms from the central compact source associated with IKT16, a supernova remnant in the Small Magellanic Cloud (SMC…
The EXTraS Project: Exploring the X-ray transient and variable sky
A. De Luca, R. Salvaterra, A. Belfiore +29
Temporal variability in flux and spectral shape is ubiquitous in the X-ray sky and carries crucial information about the nature and emission physics of the sources. The EPIC instru…
AGILE Observations of Fast Radio Bursts
F. Verrecchia, C. Casentini, M. Tavani +22
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. We used 13 years of AGILE archi…
The X-ray evolution and geometry of the 2018 outburst of XTE J1810-197
A. Borghese, N. Rea, R. Turolla +17
After 15 years, in late 2018, the magnetar XTE J1810-197 underwent a second recorded X-ray outburst event and reactivated as a radio pulsar. We initiated an X-ray monitoring campai…
X-ray and Radio Bursts from the Magnetar 1E1547.0-5408
G. L. Israel, M. Burgay, N. Rea +10
We report on simultaneous radio and X-ray observations of the radio-emitting magnetar 1E1547.0-5408 on 2009 January 25 and February 3, with the 64-m Parkes radio telescope and the…
The new magnetar SGR J1830-0645 in outburst
F. Coti Zelati, A. Borghese, G. L. Israel +13
The detection of a short hard X-ray burst and an associated bright soft X-ray source by the Swift satellite in 2020 October heralded a new magnetar in outburst, SGR J1830-0645. Pul…
Dust-scattering halo and giant hard X-ray flare from the Supergiant Fast X-ray Transient IGR J16479-4514 investigated with XMM-Newton and INTEGRAL
V. Sguera, A. Tiengo, L. Sidoli +1
We report results from the analysis of XMM-Newton and INTEGRAL data of IGR J16479-4514. The unpublished XMM-Newton observation, performed in 2012, occurred during the source eclips…
A Multi-wavelength search for Black Widows and Redbacks counterparts of candidate -ray millisecond pulsars
C. Braglia, R. P. Mignani, A. Belfiore +6
The wealth of detections of millisecond pulsars (MSPs) in -rays by {\em Fermi} has spurred searches for these objects among the several unidentified -ray sources. Interesting…
The X-ray reactivation of the radio bursting magnetar SGR 1935+2154
A. Borghese, F. Coti Zelati, N. Rea +4
A few years after its discovery as a magnetar, SGR J1935+2154 started a new burst-active phase on 2020 April 27, accompanied by a large enhancement of its X-ray persistent emission…
A search for optical and near-infrared counterparts of the compact binary merger GW190814
A. L. Thakur, S. Dichiara, E. Troja +29
We report on our observing campaign of the compact binary merger GW190814, detected by the Advanced LIGO and Advanced Virgo detectors on August 14th, 2019. This signal has the best…
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…
The slow heartbeats of an ultra-luminous X-ray source in NGC 3621
S. E. Motta, M. Marelli, F. Pintore +6
We report on the results of X-ray observations of 4XMM J111816.0-324910, a transient ultra-luminous X-ray source located in the galaxy NGC 3621. This system is characterised by a t…