Articles by Riccardo Middei

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Riccardo Middei

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IXPE Observation of the Low-Synchrotron Peaked Blazar S4 0954+65 During An Optical-X-ray Flare

25 November 2024 by Pouya Kouch and others

High Energy Astrophysical Phenomena

Insights from the first flaring activity of a high-synchrotron-peaked blazar with X-ray polarization and VHE gamma rays

30 October 2024 by Kenshi Abe and others

High Energy Astrophysical Phenomena

A Two-Week IXPE Monitoring Campaign on Mrk 421

25 October 2024 by W. Peter Maksym and others at

Boston University

High Energy Astrophysical Phenomena

A second view on the X-ray polarization of NGC 4151 with IXPE

18 October 2024 by V. Gianolli and others

High Energy Astrophysical Phenomena, Astrophysics of Galaxies

X-ray view of dissipative warm corona in active galactic nuclei

17 September 2024 by Biswaraj Palit and others

High Energy Astrophysical Phenomena

Investigating the interplay between the coronal properties and the hard X-ray variability of active galactic nuclei with NuSTAR

24 July 2024 by Roberto Serafinelli and others at

INAF

High Energy Astrophysical Phenomena, Astrophysics of Galaxies

Investigating the nuclear properties of highly accreting active galactic nuclei with XMM-Newton

17 July 2024 by Marco Laurenti and others

High Energy Astrophysical Phenomena, Astrophysics of Galaxies

X-ray and multiwavelength polarization of Mrk 501 from 2022 to 2023

15 July 2024 by Chien-Ting Chen and others

High Energy Astrophysical Phenomena, Astrophysics of Galaxies

IXPE observation of PKS 2155-304 reveals the most highly polarized blazar

3 June 2024 by Pouya Kouch and others

High Energy Astrophysical Phenomena

The origin of the soft excess in the luminous quasar HE 1029-1401

22 May 2024 by Beatrice Vaia and others

High Energy Astrophysical Phenomena

Supermassive Black Hole Winds in X-rays -- SUBWAYS. III. A population study on ultra-fast outflows

11 April 2024 by V. Gianolli and others

Astrophysics of Galaxies, High Energy Astrophysical Phenomena

Unveiling the periodic variability patterns of the X-ray emission from the blazar PG 1553+113

10 April 2024 by Tommaso Aniello and others

High Energy Astrophysical Phenomena, Astrophysics of Galaxies

Unveiling Energy Pathways in AGN Accretion Flows with the Warm Corona Model for the Soft Excess

3 April 2024 by D. Ballantyne and others

High Energy Astrophysical Phenomena

Insights into the broad-band emission of the TeV blazar Mrk 501 during the first X-ray polarization measurements

16 January 2024 by Shinichiro Abe and others

High Energy Astrophysical Phenomena

Detection of X-ray Polarization from the Blazar 1ES 1959+650 with the Imaging X-ray Polarimetry Explorer

9 January 2024 by Manel Errando and others

High Energy Astrophysical Phenomena

First characterization of the emission behavior of Mrk421 from radio to VHE gamma rays with simultaneous X-ray polarization measurements

17 December 2023 by Shinichiro Abe and others

High Energy Astrophysical Phenomena

The High Energy X-ray Probe (HEX-P): the most powerful jets through the lens of a superb X-ray eye

8 November 2023 by Lea Marcotulli and others

High Energy Astrophysical Phenomena, Instrumentation and Methods for Astrophysics

Wavelength Dependences of the Optical/UV and X-ray Luminosity Correlations of Quasars

27 October 2023 by Chichuan Jin and others

Astrophysics of Galaxies, High Energy Astrophysical Phenomena

Observations of Low and Intermediate Spectral Peak Blazars with the Imaging X-ray Polarimetry Explorer

19 October 2023 by Herman Marshall and others

High Energy Astrophysical Phenomena

X-ray Polarization of the BL Lac Type Blazar 1ES 0229+200

2 October 2023 by Steven Ehlert and others

High Energy Astrophysical Phenomena

Disc wind or disc line? The extraordinary Fe-K feature of Mrk 1513

29 September 2023 by Riccardo Middei and others

High Energy Astrophysical Phenomena, Astrophysics of Galaxies

The Polarized Cosmic Hand: IXPE Observations of PSR B1509-58/MSH 15-52

27 September 2023 by Roger Romani and others at

ASTRON

High Energy Astrophysical Phenomena

A remarkably stable accretion disc in the Seyfert galaxy MCG-5-23-16

12 September 2023 by Roberto Serafinelli and others

High Energy Astrophysical Phenomena, Astrophysics of Galaxies

Polarized Blazar X-rays imply particle acceleration in shocks

3 September 2023 by Ioannis Liodakis and others

High Energy Astrophysical Phenomena

The X-ray polarisation of the Seyfert 1 galaxy IC 4329A

30 August 2023 by A. Ingram and others

High Energy Astrophysical Phenomena

First detection of X-ray polarization from the accreting neutron star 4U 1820-303

21 August 2023 by Alessandro Marco and others

High Energy Astrophysical Phenomena

IXPE and multi-wavelength observations of blazar PG 1553+113 reveal an orphan optical polarization swing

31 July 2023 by Riccardo Middei and others

High Energy Astrophysical Phenomena

HYPerluminous quasars at the Epoch of ReionizatION (HYPERION). A new regime for the X-ray nuclear properties of the first quasars

19 July 2023 by Luca Zappacosta and others

Astrophysics of Galaxies, High Energy Astrophysical Phenomena

X-ray Polarization of BL Lacertae in Outburst

3 July 2023 by Abel Peirson and others

High Energy Astrophysical Phenomena, Astrophysics of Galaxies

Uncovering the geometry of the hot X-ray corona in the Seyfert galaxy NGC4151 with IXPE

9 June 2023 by V. Gianolli and others

Astrophysics of Galaxies, High Energy Astrophysical Phenomena

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High Energy Astrophysical Phenomena Astrophysics of Galaxies Instrumentation and Methods for Astrophysics Cosmology and Nongalactic Astrophysics General Relativity and Quantum Cosmology