7.1k citations
Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- National Institute for AstrophysicsIT1.2k papers
- University of BolognaIT1.1k papers
- Centre National de la Recherche ScientifiqueFR830 papers
- Leiden UniversityNL562 papers
- University of PaduaIT461 papers
- Commissariat à l'Énergie Atomique et aux Énergies AlternativesFR449 papers
- Astrophysique, Instrumentation et ModélisationFR424 papers
- Center for Astrophysics Harvard & SmithsonianUS420 papers
- Netherlands Institute for Radio AstronomyNL418 papers
- Osservatorio Astronomico di PadovaIT411 papers
- Osservatorio astronomico di BolognaIT398 papers
- California Institute of TechnologyUS397 papers
30 papers · 2 filters
Long-term multi-wavelength study of 1ES 0647+250
MAGIC Collaboration, V. A. Acciari, T. Aniello +217
The BL Lac object 1ES 0647+250 is one of the few distant -ray emitting blazars detected at very high energies (VHE, 100 GeV) during a non-flaring state. It was detected…
Optical Spectroscopy of Blazars for the Cherenkov Telescope Array -- II
E. Kasai, P. Goldoni, S. Pita +11
Active galactic nuclei (AGNs) make up about 35 per cent of the more than 250 sources detected in very-high-energy (VHE) gamma rays to date with Imaging Atmospheric Cherenkov Telesc…
A deep study of A399-401: An application for wide-field facet calibration
J. M. G. H. J. de Jong, R. J. van Weeren, A. Botteon +6
We examine the particle acceleration mechanism in the Mpc-scale bridge between Abell 399 and Abell 401 and assess in particular if the synchrotron emission originates from first-or…
The Fourth Catalog of Active Galactic Nuclei Detected by the Fermi Large Area Telescope -- Data Release 3
LAT collaboration, Marco Ajello, Luca Baldini +100
An incremental version of the fourth catalog of active galactic nuclei (AGNs) detected by the Fermi-Large Area Telescope is presented. This version (4LAC-DR3) derives from the thir…
Life cycle of cosmic-ray electrons in the intracluster medium
F. Vazza, D. Wittor, L. Di Federico +5
We simulate the evolution of relativistic electrons injected into the medium of a small galaxy cluster by a central radio galaxy, studying how the initial jet power affects the dis…
Multi-messenger characterization of Mrk 501 during historically low X-ray and -ray activity
MAGIC collaboration, H. Abe, S. Abe +322
We study the broadband emission of Mrk 501 using multi-wavelength observations from 2017 to 2020 performed with a multitude of instruments, involving, among others, MAGIC, Fermi-LA…
Orbital motion near Sagittarius A* -- Constraints from polarimetric ALMA observations
Maciek Wielgus, Monika Moscibrodzka, Jesse Vos +6
We report on the polarized light curves of the Galactic Center supermassive black hole Sagittarius A*, obtained at millimeter wavelength with the Atacama Large Millimeter/submillim…
ASTRI Mini-Array Core Science at the Observatorio del Teide
S. Vercellone, C. Bigongiari, A. Burtovoi +84
The ASTRI (Astrofisica con Specchi a Tecnologia Replicante Italiana) Project led by the Italian National Institute for Astrophysics (INAF) is developing and will deploy at the Obse…
Extragalactic Observatory Science with the ASTRI Mini-Array at the Observatorio del Teide
F. G. Saturni, C. H. E. Arcaro, B. Balmaverde +47
The ASTRI Mini-Array is a next-generation system of nine imaging atmospheric Cherenkov telescopes that is going to be built at the Observatorio del Teide site. After a first phase,…
Resolving the inner parsec of the blazar J1924-2914 with the Event Horizon Telescope
Sara Issaoun, Maciek Wielgus, Svetlana Jorstad +27
The blazar J1924-2914 is a primary Event Horizon Telescope (EHT) calibrator for the Galactic Center's black hole Sagittarius A*. Here we present the first total and linearly polari…
Millimeter light curves of Sagittarius A* observed during the 2017 Event Horizon Telescope campaign
Maciek Wielgus, Nicola Marchili, Ivan Marti-Vidal +28
The Event Horizon Telescope (EHT) observed the compact radio source, Sagittarius A* (Sgr A*), in the Galactic Center on 2017 April 5-11 in the 1.3 millimeter wavelength band. At th…
A truncated inner disc in the Seyfert 1 galaxy WKK 4438
L. C. Gallo, M. Z. Buhariwalla, J. Jiang +2
Understanding if and when the accretion disc extends down to the innermost stable circular orbit (ISCO) is important since it is the fundamental assumption behind measuring black h…
Intracluster magnetic filaments and an encounter with a radio jet
Lawrence Rudnick, Marcus Bruggen, Gianfranco Brunetti +6
Thin synchrotron-emitting filaments are increasingly seen in the intracluster medium (ICM). We present the first example of a direct interaction between a magnetic filament, a radi…
Hard-X-ray-selected Active Galactic Nuclei -- II. Spectral Energy Distributions in the 5-45 GHz domain
Francesca Panessa, Elia Chiaraluce, Gabriele Bruni +7
A wide-frequency radio study of Active Galactic Nuclei (AGN) is crucial to evaluate the intervening radiative mechanisms responsible for the observed emission and relate them with…
The NuSTAR and Chandra view of CL 0217+70 and Its Tell-Tale Radio Halo
Ayşegül Tümer, Daniel R. Wik, Xiaoyuan Zhang +11
Mergers of galaxy clusters are the most energetic events in the universe, driving shock and cold fronts, generating turbulence, and accelerating particles that create radio halos a…
VLBI observations of GRB 201015A, a relatively faint GRB with a hint of Very High Energy gamma-ray emission
S. Giarratana, L. Rhodes, B. Marcote +14
GRB 201015A is a long-duration Gamma-Ray Burst (GRB) which was detected at very high energies (> 100 GeV) using the MAGIC telescopes. If confirmed, this would be the fifth and leas…
Search for new cosmic-ray acceleration sites within the 4FGL catalog Galactic plane sources
LAT Collaboration, S. Abdollahi, F. Acero +117
Cosmic rays are mostly composed of protons accelerated to relativistic speeds. When those protons encounter interstellar material, they produce neutral pions which in turn decay in…
GeV emission from a compact binary merger
Alessio Mei, Biswajit Banerjee, Gor Oganesyan +9
An energetic -ray burst (GRB), GRB 211211A, was observed on 2021 December 11 by the Neil Gehrels Swift Observatory. Despite its long duration, typically associated with burs…
Unravelling the Innermost Jet Structure of OJ 287 with the First GMVA+ALMA Observations
Guang-Yao Zhao, Jose L. Gomez, Antonio Fuentes +33
We present the first very-long-baseline interferometric (VLBI) observations of the blazar OJ287 carried out jointly with the Global Millimeter VLBI Array (GMVA) and the phased Atac…
Milliarcsecond X-ray astrometry to resolve inner regions of AGN at using gravitational lensing
C. Spingola, D. Schwartz, A. Barnacka
We report the localization of the X-ray emission from two strongly lensed AGN, CLASS B0712+472 () and CLASS B1608+656 (). We obtain milliarcsecond X-ray astrometry…
The Northern Cross Fast Radio Burst project - II. Monitoring of repeating FRB 20180916B, 20181030A, 20200120E and 20201124A
M. Trudu, M. Pilia, G. Bernardi +22
In this work we report the results of a nineteen-month Fast Radio Burst observational campaign carried out with the North-South arm of the Medicina Northern Cross radio telescope a…
Multi-scale VLBI observations of the candidate host galaxy of GRB 200716C
S. Giarratana, M. Giroletti, C. Spingola +3
We present the discovery and the subsequent follow up of radio emission from SDSS J130402.36293840.6 (J1304+2938), the candidate host galaxy of the gamma-ray burst GRB~200716C.…
Observing the inner parsec-scale region of candidate neutrino-emitting blazars
Cristina Nanci, Marcello Giroletti, Monica Orienti +14
Context. Many questions on the nature of astrophysical counterparts of high-energy neutrinos remain unanswered. There is increasing evidence of a connection between blazar jets and…
Searching for pulsars associated with polarised point sources using LOFAR: Initial discoveries from the TULIPP project
C. Sobey, C. G. Bassa, S. P. O'Sullivan +15
Discovering radio pulsars, particularly millisecond pulsars (MSPs), is important for a range of astrophysical applications, such as testing theories of gravity or probing the magne…