activity
20112023
most citedCygnus X-3 revealed as a Galactic ultraluminous X-ray source by IXPE

51 citations · 303 across the 16 of their papers we have counts for

collaborators

16 papers

astro-ph.HE2023★ 51 cited

Cygnus X-3 revealed as a Galactic ultraluminous X-ray source by IXPE

Alexandra Veledina, Fabio Muleri, Juri Poutanen +127

The accretion of matter by compact objects can be inhibited by radiation pressure if the luminosity exceeds the critical value, known as the Eddington limit. Discovery of ultralumi…

astro-ph.IM2022★ 1 cited

Towards coordinated site monitoring and common strategies for mitigation of Radio Frequency Interference at the Italian radio telescopes

Alessandra Zanichelli, Giampaolo Serra, Karl-Heinz Mack +22

We present a project to implement a national common strategy for the mitigation of the steadily deteriorating Radio Frequency Interference (RFI) situation at the Italian radio tele…

astro-ph.SR2022★ 11 cited

Solar observations with single-dish INAF radio telescopes: continuum imaging in the 18-26 GHz range

A. Pellizzoni, S. Righini, M. N. Iacolina +28

We present a new solar radio imaging system implemented through the upgrade of the large single-dish telescopes of the Italian National Institute for Astrophysics (INAF), not origi…

astro-ph.HE2021★ 49 cited

Investigation of the correlation patterns and the Compton dominance variability of Mrk 421 in 2017

MAGIC Collaboration, V. A. Acciari, S. Ansoldi +284

We present a detailed characterisation and theoretical interpretation of the broadband emission of the paradigmatic TeV blazar Mrk 421, with special focus on the multi-band flux co…

astro-ph.HE2021★ 41 cited

The complex variability of blazars: Time-scales and periodicity analysis in S4 0954+65

C. M. Raiteri, M. Villata, V. M. Larionov +3

Among active galactic nuclei, blazars show extreme variability properties. We here investigate the case of the BL Lac object S4 0954+65 with data acquired in 2019-2020 by the Trans…

astro-ph.HE2020★ 8 cited

Investigating the mini and giant radio flare episodes of Cygnus X-3

E. Egron, A. Pellizzoni, S. Righini +16

The microquasar Cygnus X-3 underwent a giant radio flare in April 2017, reaching a maximum flux of Jy at 8.5 GHz. We present results from a long monitoring campaign car…

astro-ph.HE2020★ 51 cited

Multiwavelength behaviour of the blazar 3C279: decade-long study from -ray to radio

V. M. Larionov, S. G. Jorstad, A. P. Marscher +84

We report the results of decade-long (2008-2018) -ray to 1 GHz radio monitoring of the blazar 3C 279, including GASP/WEBT, and data, as well as polarim…

astro-ph.HE2019★ 12 cited

The beamed jet and quasar core of the distant blazar 4C 71.07

C. M. Raiteri, M. Villata, M. I. Carnerero +5

The object 4C 71.07 is a high-redshift blazar whose spectral energy distribution shows a prominent big blue bump and a strong Compton dominance. We present the results of a two-yea…

astro-ph.HE2018★ 8 cited

AGILE, Fermi, Swift, and GASP-WEBT multi-wavelength observations of the high-redshift blazar 4C 71.07 in outburst

S. Vercellone, P. Romano, G. Piano +56

The flat-spectrum radio quasar 4C 71.07 is a high-redshift (), -loud blazar whose optical emission is dominated by the thermal radiation from accretion disc. 4C 7…

astro-ph.HE2018★ 23 cited

Investigating the high-frequency spectral features of SNRs Tycho, W44 and IC443 with the Sardinia Radio Telescope

S. Loru, A. Pellizzoni, E. Egron +20

The main characteristics in the radio continuum spectra of Supernova Remnants (SNRs) result from simple synchrotron emission. In addition, electron acceleration mechanisms can shap…

astro-ph.HE2016

Observations of Supernova Remnants with the Sardinia Radio Telescope

E. Egron, A. Pellizzoni, S. Loru +11

In the frame of the Astronomical Validation activities for the 64m Sardinia Radio Telescope, we performed 5-22 GHz imaging observations of the complex-morphology supernova remnants…

astro-ph.HE2016

Modelling high-resolution spatially-resolved Supernova Remnant spectra with the Sardinia Radio Telescope

Sara Loru, Alberto Pellizzoni, Elise Egron +12

Supernova Remnants (SNRs) exhibit spectra featured by synchrotron radio emission arising from the relativistic electrons, and high-energy emission from both leptonic (Bremsstrahlun…

astro-ph.HE2016★ 30 cited

The 999th Swift gamma-ray burst: Some like it thermal

F. Nappo, A. Pescalli, G. Oganesyan +23

We present a multiwavelength study of GRB 151027A. This is the 999th GRB detected by the Swift satellite and it has a densely sampled emission in the X-ray and optical band and has…

astro-ph.CO2013★ 5 cited

A 20 GHz Bright Sample for Delta > 72 deg - II. Multi-frequency Follow-up

R. Ricci, S. Righini, R. Verma +10

We present follow-up observations at 5, 8 and 30 GHz of the K-band Northern Wide Survey (KNoWS) 20 GHz Bright Sample, performed with the 32-m Medicina Radio Telescope and the 32-m…

astro-ph.CO2012★ 4 cited

A 20 GHz bright sample for δ > +72°: I. Catalogue

S. Righini, E. Carretti, R. Ricci +9

During 2010-2011, the Medicina 32-m dish hosted the 7-feed 18-26.5 GHz receiver built for the Sardinia Radio Telescope, with the goal to perform its commissioning. This opportunity…

astro-ph.CO2011★ 9 cited

The Simultaneous Medicina-Planck Experiment (SiMPlE): data acquisition, reduction and first results

P. Procopio, M. Massardi, S. Righini +13

The Simultaneous Medicina-{\it Planck} Experiment (SiMPlE) is aimed at observing a selected sample of 263 extragalactic and Galactic sources with the Medicina 32-m single dish radi…