相关论文: X-ray polarization observations of NGC 2110 with I…

First X-ray polarimetric view of a Low-Luminosity Active Galactic Nucleus: the case of NGC 2110

Low-Luminosity Active Galactic Nuclei (LLAGN) provides a unique view of Comptonization and non-thermal emission from accreting black holes in the low-accretion rate regime. However, to decipher the exact nature of the Comptonizing corona in…

高能天体物理现象 · 物理学 2025-03-04 Sudip Chakraborty , Ajay Ratheesh , Daniele Tagliacozzo , Philip Kaaret , Jakub Podgorný , Frédéric Marin , Francesco Tombesi , Steven R. Ehlert , Chien-Ting J. Chen , Dawoon E. Kim , Ioannis Liodakis , Francesco Ursini , Riccardo Middei , Alessandro Di Marco , Fabio La Monaca , Srimanta Banerjee , Keigo Fukumura , W. Peter Maksym , Romana Mikušincová , Rodrigo Nemmen , Pierre-Olivier Petrucci , Paolo Soffitta , Jiří Svoboda

The geometry of the hot corona in MCG-05-23-16 constrained by X-ray polarimetry

We report on the second observation of the radio-quiet active galactic nucleus (AGN) MCG-05-23-16 performed with the Imaging X-ray Polarimetry Explorer (IXPE). The observation started on 2022 November 6 for a net observing time of 640 ks,…

高能天体物理现象 · 物理学 2023-05-18 D. Tagliacozzo , A. Marinucci , F. Ursini , G. Matt , S. Bianchi , L. Baldini , T. Barnouin , N. Cavero Rodriguez , A. De Rosa , L. Di Gesu , M. Dovciak , D. Harper , A. Ingram , V. Karas , D. E. Kim , H. Krawczynski , G. Madejski , F. Marin , R. Middei , H. L. Marshall , F. Muleri , C. Panagiotou , P. O. Petrucci , J. Podgorny , J. Poutanen , S. Puccetti , P. Soffitta , F. Tombesi , A. Veledina , W. Zhang , I. Agudo , L. A. Antonelli , M. Bachetti , W. H. Baumgartner , R. Bellazzini , S. D. Bongiorno , R. Bonino , A. Brez , N. Bucciantini , F. Capitanio , S. Castellano , E. Cavazzuti , C. T. Chen , S. Ciprini , E. Costa , E. Del Monte , N. Di Lalla , A. Di Marco , I. Donnarumma , V. Doroshenko , S. R. Ehlert , T. Enoto , Y. Evangelista , S. Fabiani , R. Ferrazzoli , J. A. Garcia , S. Gunji , J. Heyl , W. Iwakiri , S. G. Jorstad , P. Kaaret , F. Kislat , T. Kitaguchi , J. J. Kolodziejczak , F. La Monaca , L. Latronico , I. Liodakis , S. Maldera , A. Manfreda , A. P. Marscher , F. Massaro , I. Mitsuishi , T. Mizuno , M. Negro , C. Y. Ng , S. L. O'Dell , N. Omodei , C. Oppedisano , A. Papitto , G. G. Pavlov , A. L. Peirson , M. Perri , M. Pesce Rollins , M. Pilia , A. Possenti , B. D. Ramsey , J. Rankin , A. Ratheesh , O. J. Roberts , R. W. Romani , C. Sgrò , P. Slane , G. Spandre , D. A. Swartz , T. Tamagawa , F. Tavecchio , R. Taverna , Y. Tawara , A. F. Tennant , N. E. Thomas , A. Trois , S. S. Tsygankov , R. Turolla , J. Vink , M. C. Weisskopf , K. Wu , F. Xie , S. Zane

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

We present an X-ray spectro-polarimetric analysis of the bright Seyfert galaxy NGC4151. The source has been observed with the Imaging X-ray Polarimetry Explorer (IXPE) for 700 ks, complemented with simultaneous XMM-Newton (50 ks) and NuSTAR…

星系天体物理 · 物理学 2023-06-12 V. E. Gianolli , D. E. Kim , S. Bianchi , B. Agís-González , G. Madejski , F. Marin , A. Marinucci , G. Matt , R. Middei , P-O. Petrucci , P. Soffitta , D. Tagliacozzo , F. Tombesi , F. Ursini , T. Barnouin , A. De Rosa , L. Di Gesu , A. Ingram , V. Loktev , C. Panagiotou , J. Podgorny , J. Poutanen , S. Puccetti , A. Ratheesh , A. Veledina , W. Zhang , I. Agudo , L. A. Antonelli , M. Bachetti , L. Baldini , W. H. Baumgartner , R. Bellazzini , S. D. Bongiorno , R. Bonino , A. Brez , N. Bucciantini , F. Capitanio , S. Castellano , E. Cavazzuti , C. -T. Chen , S. Ciprini , E. Costa , E. Del Monte , N. Di Lalla , A. Di Marco , I. Donnarumma , V. Doroshenko , M. Dovčiak , S. R. Ehlert , T. Enoto , Y. Evangelista , S. Fabiani , R. Ferrazzoli , J. A. García , S. Gunji , J. Heyl , W. Iwakiri , S. G. Jorstad , P. Kaaret , V. Karas , F. Kislat , T. Kitaguchi , J. J. Kolodziejczak , H. Krawczynski , F. La Monaca , L. Latronico , I. Liodakis , S. Maldera , A. Manfreda , A. P. Marscher , H. L. Marshall , F. Massaro , I. Mitsuishi , T. Mizuno , F. Muleri , M. Negro , C. -Y. Ng , S. L. ODell , N. Omodei , C. Oppedisano , A. Papitto , G. G. Pavlov , A. L. Peirson , M. Perri , M. Pesce-Rollins , M. Pilia , A. Possenti , B. D. Ramsey , J. Rankin , O. J. Roberts , R. W. Romani , C. Sgrò , P. Slane , G. Spandre , D. A. Swartz , T. Tamagawa , F. Tavecchio , R. Taverna , Y. Tawara , A. F. Tennant , N. E. Thomas , A. Trois , S. S. Tsygankov , R. Turolla , J. Vink , M. C. Weisskopf , K. Wu , F. Xie , S. Zane

Polarization constraints on the X-ray corona in Seyfert Galaxies: MCG-05-23-16

We report on the first observation of a radio-quiet Active Galactic Nucleus (AGN) using polarized X-rays: the Seyfert 1.9 galaxy MCG-05-23-16. This source was pointed with the Imaging X-ray Polarimetry Explorer (IXPE) starting on May 14,…

高能天体物理现象 · 物理学 2022-10-05 A. Marinucci , F. Muleri , M. Dovčiak , S. Bianchi , F. Marin , G. Matt , F. Ursini , R. Middei , H. L. Marshall , L. Baldini , T. Barnouin , N. Cavero Rodriguez , A. De Rosa , L. Di Gesu , D. Harper , A. Ingram , V. Karas , H. Krawczynski , G. Madejski , C. Panagiotou , P. O. Petrucci , J. Podgorny , S. Puccetti , F. Tombesi , A. Veledina , W. Zhang , I. Agudo , L. A. Antonelli , M. Bachetti , W. H. Baumgartner , R. Bellazzini , S. D. Bongiorno , R. Bonino , A. Brez , N. Bucciantini , F. Capitanio , S. Castellano , E. Cavazzuti , S. Ciprini , E. Costa , E. Del Monte , N. Di Lalla , A. Di Marco , I. Donnarumma , V. Doroshenko , S. R. Ehlert , T. Enoto , Y. Evangelista , S. Fabiani , R. Ferrazzoli , J. A. Garcia , S. Gunji , K. Hayashida , J. Heyl , W. Iwakiri , S. G. Jorstad , T. Kitaguchi , J. J. Kolodziejczak , F. La Monaca , L. Latronico , I. Liodakis , S. Maldera , A. Manfreda , A. P. Marscher , I. Mitsuishi , T. Mizuno , C. -Y. Ng , S. L. O'Dell , N. Omodei , C. Oppedisano , A. Papitto , G. G. Pavlov , A. L. Peirson , M. Perri , M. Pesce-Rollins , M. Pilia , A. Possenti , J. Poutanen , B. D. Ramsey , J. Rankin , A. Ratheesh , R. W. Romani , C. Sgrò , P. Slane , P. Soffitta , G. Spandre , T. Tamagawa , F. Tavecchio , R. Taverna , Y. Tawara , A. F. Tennant , N. E. Thomas , A. Trois , S. S. Tsygankov , R. Turolla , J. Vink , M. C. Weisskopf , K. Wu , F. Xie , S. Zane

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

We report on the second observing program of the active galactic nucleus NGC 4151 with simultaneous Imaging X-ray Polarimetry Explorer (IXPE; {\sim}750 ks), NuSTAR ({\sim}60 ks), XMM-Newton ({\sim}75 ks), and NICER ({\sim}65 ks) pointings.…

高能天体物理现象 · 物理学 2024-10-30 V. E. Gianolli , S. Bianchi , E. Kammoun , A. Gnarini , A. Marinucci , F. Ursini , M. Parra , A. Tortosa , A. De Rosa , D. E. Kim , F. Marin , G. Matt , R. Serafinelli , P. Soffitta , D. Tagliacozzo , L. Di Gesu , C. Done , H. L. Marshall , R. Middei , R. Mikusincova , P-O. Petrucci , S. Ravi , J. Svoboda , F. Tombesi

Unobscured radio-quiet Active Galactic Nuclei under the eyes of IXPE

We present the results of the X-ray polarimetric analyses performed on unobscured radio-quiet Active Galactic Nuclei (AGN) with the Imaging X-ray Polarimetry Explorer (IXPE), with simultaneous XMM-Newton and NuSTAR data. The synergy of…

星系天体物理 · 物理学 2024-07-01 V. E. Gianolli , S. Bianchi , P-O. Petrucci , A. Marinucci , A. Ingram , D. Tagliacozzo , D. E. Kim , F. Marin , G. Matt , P. Soffitta , F. Tombesi

X-ray polarization observations of IC 4329A with IXPE: Constraining the geometry of the X-ray corona

X-ray polarimetry is a powerful tool to probe the geometry of the hot X-ray corona in active galactic nuclei (AGN). Here, we present our results on the characterisation of the X-ray polarization of the radio-quiet Seyfert-type AGN IC 4329A…

高能天体物理现象 · 物理学 2023-05-17 Indrani Pal , C. S. Stalin , Rwitika Chatterjee , Vivek K. Agrawal

Investigating the Properties of the Relativistic Jet and Hot Corona in AGN with X-ray Polarimetry

X-ray polarimetry has been suggested as a prominent tool for investigating the geometrical and physical properties of the emissions from active galactic nuclei (AGN). The successful launch of the Imaging X-ray Polarimetry Explorer (IXPE) on…

高能天体物理现象 · 物理学 2024-04-23 Dawoon E. Kim , Laura Di Gesu , Frédéric Marin , Alan P. Marscher , Giorgio Matt , Paolo Soffitta , Francesco Tombesi , Enrico Costa , Immacolata Donnarumma

X-ray polarization measurement of the gold standard of radio-quiet active galactic nuclei : NGC 1068

We used the Imaging X-ray Polarimetry Explorer (IXPE) satellite to measure, for the first time, the 2-8 keV polarization of NGC 1068. We pointed IXPE for a net exposure time of 1.15 Ms on the target, in addition to two ~ 10 ks each Chandra…

高能天体物理现象 · 物理学 2024-09-18 F. Marin , A. Marinucci , M. Laurenti , D. E. Kim , T. Barnouin , A. Di Marco , F. Ursini , S. Bianchi , S. Ravi , H. L. Marshall , G. Matt , C. -T. Chen , V. E. Gianolli , A. Ingram , W. P. Maksym , C. Panagiotou , J. Podgorny , S. Puccetti , A. Ratheesh , F. Tombesi , I. Agudo , L. A. Antonelli , M. Bachetti , L. Baldini , W. Baumgartner , R. Bellazzini , S. Bongiorno , R. Bonino , A. Brez , N. Bucciantini , F. Capitanio , S. Castellano , E. Cavazzuti , S. Ciprini , E. Costa , A. De Rosa , E. Del Monte , L. Di Gesu , N. Di Lalla , I. Donnarumma , V. Doroshenko , M. Dovciak , S. Ehlert , T. Enoto , Y. Evangelista , S. Fabiani , R. Ferrazzoli , J. Garcia , S. Gunji , J. Heyl , W. Iwakiri , S. Jorstad , P. Kaaret , V. Karas , F. Kislat , T. Kitaguchi , J. Kolodziejczak , H. Krawczynski , F. La Monaca , L. Latronico , I. Liodakis , G. Madejski , S. Maldera , A. Manfreda , A. Marscher , F. Massaro , I. Mitsuishi , T. Mizuno , F. Muleri , M. Negro , S. Ng , S. O'Dell , N. Omodei , C. Oppedisano , A. Papitto , G. Pavlov , M. Perri , M. Pesce-Rollins , P. -O. Petrucci , M. Pilia , A. Possenti , J. Poutanen , B. Ramsey , J. Rankin , O. Roberts , R. Romani , C. Sgro , P. Slane , P. Soffitta , G. Spandre , D. Swartz , T. Tamagawa , F. Tavecchio , R. Taverna , Y. Tawara , A. Tennant , N. Thomas , A. Trois , S. Tsygankov , R. Turolla , J. Vink , M. Weisskopf , K. Wu , F. Xie , S. Zane

Spectro-polarimetric study to constrain accretion-ejection properties of MCG-5-23-16 using IXPE and NuSTAR observations

We conducted a study on the X-ray polarization properties of MCG-5-23-16 by analyzing long-term monitoring data from {\it NuSTAR} jointly with {\it IXPE} observations made in May and November 2022. The re-analysis of {\it IXPE} data gives…

高能天体物理现象 · 物理学 2024-11-20 Santanu Mondal , Rwitika Chatterjee , Vivek K. Agrawal , Anuj Nandi

Polarization properties of the weakly magnetized neutron star X-ray binary GS 1826-238 in the high soft state

The launch of the Imaging X-ray Polarimetry Explorer (IXPE) on 2021 December 9 has opened a new window in X-ray astronomy. We report here the results of the first IXPE observation of a weakly magnetized neutron star, GS 1826-238, performed…

高能天体物理现象 · 物理学 2023-02-08 Fiamma Capitanio , Sergio Fabiani , Andrea Gnarini , Francesco Ursini , Carlo Ferrigno , Giorgio Matt , Juri Poutanen , Massimo Cocchi , Romana Mikusincova , Ruben Farinelli , Stefano Bianchi , Jari J. E. Kajava , Fabio Muleri , Celia Sanchez-Fernandez , Paolo Soffitta , Kinwah Wu , Ivan Agudo , Lucio A. Antonelli , Matteo Bachetti , Luca Baldini , Wayne H. Baumgartner , Ronaldo Bellazzini , Stephen D. Bongiorno , Raffaella Bonino , Alessandro Brez , Niccoló Bucciantini , Simone Castellano , Elisabetta Cavazzuti , Stefano Ciprini , Enrico Costa , Alessandra De Rosa , Ettore Del Monte , Laura Di Gesu , Niccolo Di Lalla , Alessandro Di Marco , Immacolata Donnarumma , Victor Doroshenko , Michal Dovciak , Steven R. Ehlert , Teruaki Enoto , Yuri Evangelista , Riccardo Ferrazzoli , Javier A. Garcia , Shuichi Gunji , Kiyoshi Hayashida , Jeremy Heyl , Wataru Iwakiri , Svetlana G. Jorstad , Vladimir Karas , Takao Kitaguchi , Jeffery J. Kolodziejczak , Henric Krawczynski , Fabio La Monaca , Luca Latronico , Ioannis Liodakis , Simone Maldera , Alberto Manfreda , Fréedèric Marin , Andrea Marinucci , Alan P. Marscher , Herman L. Marshall , Ikuyuki Mitsuishi , Tsunefumi Mizuno , C. -Y. Ng , Stephen L. O'Dell , Nicola Omodei , Chiara Oppedisano , Alessandro Papitto , George G. Pavlov , Abel L. Peirson , Matteo Perri , Melissa Pesce -Rollins , Pierre-Olivier Petrucci , Maura Pilia , Andrea Possenti , Simonetta Puccetti , Brian D. Ramsey , John Rankin , Ajay Ratheesh , Roger W. Romani , Carmelo Sgrò , Patrick Slane , Gloria Spandre , Toru Tamagawa , Fabrizio Tavecchio , Roberto Taverna , Yuzuru Tawara , Allyn F. Tennant , Nicholas E. Thomas , Francesco Tombesi , Alessio Trois , Sergey S. Tsygankov , Roberto Turolla , Jacco Vink , Martin C. Weisskopf , Fei Xie , Silvia Zane

Polarization properties of weakly magnetized Neutron Stars in Low Mass X-ray Binaries

X-ray polarimetry missions like IXPE will be able to measure for the first time the polarization properties of accreting, weakly magnetized neutron stars in Low Mass X-ray Binaries. In this work we present simulations of the expected X-ray…

高能天体物理现象 · 物理学 2022-06-06 Andrea Gnarini , Francesco Ursini , Giorgio Matt , Stefano Bianchi , Fiamma Capitanio , Massimo Cocchi , Ruben Farinelli , Wenda Zhang

Prospects for differentiating extended coronal geometries in AGNs with the IXPE mission

X-ray polarimetry can potentially constrain the unknown geometrical shape of AGN coronae. We present simulations of the X-ray polarization signal expected from AGN coronae, assuming three different geometries, namely slab, spherical and…

高能天体物理现象 · 物理学 2022-01-05 F. Ursini , G. Matt , S. Bianchi , A. Marinucci , M. Dovčiak , W. Zhang

Unveiling the X-ray polarimetric properties of LMC X-3 with IXPE, NICER, and Swift/XRT

The incoming Imaging X-ray Polarimetry Explorer (IXPE) observations of X-ray binaries provide a new tool to investigate the underlying accretion geometry. Here we report the first measurements of X-ray polarization of the extra-galactic…

高能天体物理现象 · 物理学 2024-05-03 Akash Garg , Divya Rawat , Mariano Méndez

X-ray polarization in radio-quiet AGN: Insights from the wedge corona model using Monte Carlo simulations

In this study, we present novel calculations of X-ray polarization from radio-quiet and unobscured active galactic nuclei (AGNs) using the Monte Carlo code MONK, which includes all general and special relativity effects. Our geometric…

高能天体物理现象 · 物理学 2025-09-01 D. Tagliacozzo , S. Bianchi. V. Gianolli , A. Gnarini , A. Marinucci , G. Matt , F. Ursini , W. Zhang

Determination of X-ray pulsar geometry with IXPE polarimetry

Using observations of X-ray pulsar Her X-1 by the Imaging X-ray Polarimetry Explorer, we report on a highly significant ($>17\sigma$) detection of the polarization signal from an accreting neutron star. The observed degree of the linear…

高能天体物理现象 · 物理学 2023-01-16 Victor Doroshenko , Juri Poutanen , Sergey S. Tsygankov , Valery F. Suleimanov , Matteo Bachetti , Ilaria Caiazzo , Enrico Costa , Alessandro Di Marco , Jeremy Heyl , Fabio La Monaca , Fabio Muleri , Alexander A. Mushtukov , George G. Pavlov , Brian D. Ramsey , John Rankin , Andrea Santangelo , Paolo Soffitta , Rüdiger Staubert , Martin C. Weisskopf , Silvia Zane , Iván Agudo , Lucio A. Antonelli , Luca Baldini , Wayne H. Baumgartner , Ronaldo Bellazzini , Stefano Bianchi , Stephen D. Bongiorno , Raffaella Bonino , Alessandro Brez , Niccolò Bucciantini , Fiamma Capitanio , Simone Castellano , Elisabetta Cavazzuti , Stefano Ciprini , Alessandra De Rosa , Ettore Del Monte , Laura Di Gesu , Niccolò Di Lalla , Immacolata Donnarumma , Michal Dovciak , Steven R. Ehlert , Teruaki Enoto , Yuri Evangelista , Sergio Fabiani , Riccardo Ferrazzoli , Javier A. Garcia , Shuichi Gunji , Kiyoshi Hayashida , Wataru Iwakiri , Svetlana G. Jorstad , Vladimir Karas , Takao Kitaguchi , Jeffery J. Kolodziejczak , Henric Krawczynski , Luca Latronico , Ioannis Liodakis , Simone Maldera , Alberto Manfreda , Frédéric Marin , Andrea Marinucci , Alan P. Marscher , Herman L. Marshall , Giorgio Matt , Ikuyuki Mitsuishi , Tsunefumi Mizuno , C. -Y. Ng , Stephen L. O'Dell , Nicola Omodei , Chiara Oppedisano , Alessandro Papitto , Abel L. Peirson , Matteo Perri , Melissa Pesce-Rollins , Maura Pilia , Andrea Possenti , Simonetta Puccetti , Ajay Ratheesh , Roger W. Romani , Carmelo Sgrò , Patrick Slane , Gloria Spandre , Rashid A. Sunyaev , Toru Tamagawa , Fabrizio Tavecchio , Roberto Taverna , Yuzuru Tawara , Allyn F. Tennant , Nicolas E. Thomas , Francesco Tombesi , Alessio Trois , Roberto Turolla , Jacco Vink , Kinwah Wu , Fei Xie

XPE and VLT /FORS2 polarimetry challenge the Seyfert-1.9 classification of MCG-05-23-16

We report the third observation of the Seyfert-1.9 active galactic nucleus (AGN) MCG-05-23-16 with the Imaging X-ray Polarimetry Explorer (\textit{IXPE}), together with optical spectro-polarimetry obtained at the Very Large Telescope (VLT),…

高能天体物理现象 · 物理学 2026-01-21 Frédéric Marin , Daniele Tagliacozzo , Francesco Ursini , Damien Hutsemékers , Mitsuru Kokubo , Thibault Barnouin , Andrea Gnarini , Alessandro Leonardo Lai , Jirí Svoboda , Stefano Bianchi , Vittoria Elvezia Gianolli , Ephraim Gau , Kun Hu , Henric Krawczynski , W. Peter Maksym , Andrea Marinucci , Herman Marshall , Giorgio Matt , Riccardo Middei , Pierre-Olivier Petrucci , Simonetta Puccetti , Nicole Rodriguez , Roberto Serafinelli , Francesco Tombesi

Limits on X-ray Polarization at the Core of Centaurus A as Observed with the Imaging X-ray Polarimetry Explorer

We present measurements of the polarization of X-rays in the $2-8 \thinspace \mathrm{keV}$ band from the nucleus of the radio galaxy Centaurus A (Cen A), using a 100ks observation from the Imaging X-ray Polarimetry Explorer (IXPE). Nearly…

高能天体物理现象 · 物理学 2022-08-31 Steven R. Ehlert , Riccardo Ferrazzoli , Andrea Marinucci , Herman L. Marshall , Riccardo Middei , Luigi Pacciani , Matteo Perri , Pierre-Olivier Petrucci , Simonetta Puccetti , Thibault Barnouin , Stefano Bianchi , Ioannis Liodakis , Grzegorz Madejski , Fréderic Marin , Alan P. Marscher , Giorgio Matt , Juri Poutanen , Kinwah Wu , Iván Agudo , Lucio A. Antonelli , Matteo Bachetti , Luca Baldini , Wayne H. Baumgartner , Ronaldo Bellazzini , Stephen D. Bongiorno , Raffaella Bonino , Alessandro Brez , Niccolò Bucciantini , Fiamma Capitanio , Simone Castellano , Elisabetta Cavazzuti , Stefano Ciprini , Enrico Costa , Alessandra De Rosa , Ettore Del Monte , Laura Di Gesu , Niccolò Di Lalla , Alessandro Di Marco , Immacolata Donnarumma , Victor Doroshenko , Michal Dovčiak , Teruaki Enoto , Yuri Evangelista , Sergio Fabiani , Javier A. Garcia , Shuichi Gunji , Kiyoshi Hayashida , Jeremy Heyl , Wataru Iwakiri , Svetlana G. Jorstad , Vladimir Karas , Takao Kitaguchi , Jeffery J. Kolodziejczak , Henric Krawczynski , Fabio La Monaca , Luca Latronico , Simone Maldera , Alberto Manfreda , Francesco Massaro , Ikuyuki Mitsuishi , Tsunefumi Mizuno , Fabio Muleri , Michela Negro , C. -Y. Ng , Stephen L. O'Dell , Nicola Omodei , Chiara Oppedisano , Alessandro Papitto , George G. Pavlov , Abel L. Peirson , Melissa Pesce-Rollins , Maura Pilia , Andrea Possenti , Brian D. Ramsey , John Rankin , Ajay Ratheesh , Roger W. Romani , Carmelo Sgrò , Patrick Slane , Paolo Soffitta , Gloria Spandre , Toru Tamagawa , Fabrizio Tavecchio , Roberto Taverna , Yuzuru Tawara , Allyn F. Tennant , Nicholas E. Thomas , Francesco Tombesi , Alessio Trois , Sergey Tsygankov , Roberto Turolla , Jacco Vink , Martin C. Weisskopf , Fei Xie , Silvia Zane , James Rodi , Elisabeth Jourdain , Jean-Pierre Roques

The X-ray Polarization of the Accretion Disk Coronae of Active Galactic Nuclei

Hard X-rays observed in Active Galactic Nuclei (AGNs) are thought to originate from the Comptonization of the optical/UV accretion disk photons in a hot corona. Polarization studies of these photons can help to constrain the corona geometry…

高能天体物理现象 · 物理学 2017-11-29 Banafsheh Beheshtipour , Henric Krawczynski , Julien Malzac

Polarized x-rays from a magnetar

We report on the first detection of linearly polarized x-ray emission from an ultra-magnetized neutron star with the Imaging X-ray Polarimetry Explorer (IXPE). The IXPE 35 observations of the anomalous x-ray pulsar 4U 0142+61 reveal a…

高能天体物理现象 · 物理学 2022-11-30 Roberto Taverna , Roberto Turolla , Fabio Muleri , Jeremy Heyl , Silvia Zane , Luca Baldini , Denis González Caniulef , Matteo Bachetti , John Rankin , Ilaria Caiazzo , Niccolò Di Lalla , Victor Doroshenko , Manel Errando , Ephraim Gau , Demet Kırmızıbayrak , Henric Krawczynski , Michela Negro , Mason Ng , Nicola Omodei , Toru Tamagawa , Keisuke Uchiyama , Martin C. Weisskopf , Ivan Agudo , Lucio A. Antonelli , Wayne H. Baumgartner , Ronaldo Bellazzini , Stefano Bianchi , Stephen D. Bongiorno , Raffaella Bonino , Alessandro Brez , Niccolò Bucciantini , Fiamma Capitanio , Simone Castellano , Elisabetta Cavazzuti , Stefano Ciprini , Enrico Costa , Alessandra De Rosa , Ettore Del Monte , Laura Di Gesu , Alessandro Di Marco , Immacolata Donnarumma , Michal Dovčiak , Steven R. Ehlert , Teruaki Enoto , Yuri Evangelista , Sergio Fabiani , Riccardo Ferrazzoli , Javier A. Garcia , Shuichi Gunji , Kiyoshi Hayashida , Wataru Iwakiri , Svetlana G. Jorstad , Vladimir Karas , Takao Kitaguchi , Jeffery J. Kolodziejczak , Fabio La Monaca , Luca Latronico , Ioannis Liodakis , Simone Maldera , Alberto Manfreda , Frédéric Marin , Andrea Marinucci , Alan P. Marscher , Herman L. Marshall , Giorgio Matt , Ikuyuki Mitsuishi , Tsunefumi Mizuno , Stephen C. -Y. Ng , Stephen L. O'Dell , Chiara Oppedisano , Alessandro Papitto , George G. Pavlov , Abel L. Peirson , Matteo Perri , Melissa Pesce-Rollins , Maura Pilia , Andrea Possenti , Juri Poutanen , Simonetta Puccetti , Brian D. Ramsey , Ajay Ratheesh , Roger W. Romani , Carmelo Sgrò , Patrick Slane , Paolo Soffitta , Gloria Spandre , Fabrizio Tavecchio , Yuzuru Tawara , Allyn F. Tennant , Nicolas E. Thomas , Francesco Tombesi , Alessio Trois , Sergey Tsygankov , Jacco Vink , Kinwah Wu , Fei Xie