IXPE observation of PKS 2155–304 reveals the most highly polarized blazar - Institut de Planétologie et d'Astrophysique de Grenoble
Article Dans Une Revue Astronomy & Astrophysics - A&A Année : 2024

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

Pouya M Kouch , Ioannis Liodakis , Riccardo Middei , Dawoon E Kim , Fabrizio Tavecchio , Alan P Marscher , Herman L Marshall , Steven R Ehlert , Laura Di Gesu , Svetlana G Jorstad , Iván Agudo , Grzegorz M Madejski , Roger W Romani , Manel Errando , Elina Lindfors , Kari Nilsson , Ella Toppari , Stephen B Potter , Ryo Imazawa , Mahito Sasada , Yasushi Fukazawa , Koji S Kawabata , Makoto Uemura , Tsunefumi Mizuno , Tatsuya Nakaoka , Hiroshi Akitaya , Callum Mccall , Helen E Jermak , Iain A Steele , Ioannis Myserlis , Mark Gurwell , Garrett K Keating , Ramprasad Rao , Sincheol Kang , Sang-Sung Lee , Sang-Hyun Kim , Whee Yeon Cheong , Hyeon-Woo Jeong , Emmanouil Angelakis , Alexander Kraus , Francisco José Aceituno , Giacomo Bonnoli , Víctor Casanova , Juan Escudero , Beatriz Agís-González , César Husillos , Daniel Morcuende , Jorge Otero-Santos , Alfredo Sota , Rumen Bachev , Lucio Angelo Antonelli , Matteo Bachetti , Luca Baldini , Wayne H Baumgartner , Ronaldo Bellazzini , Stefano Bianchi , Stephen D Bongiorno , Raffaella Bonino , Alessandro Brez , Niccolò Bucciantini , Fiamma Capitanio , Simone Castellano , Elisabetta Cavazzuti , Chien-Ting Chen , Stefano Ciprini , Enrico Costa , Alessandra de Rosa , Ettore del Monte , Niccolò Di Lalla , Alessandro Di Marco , Immacolata Donnarumma , Victor Doroshenko , Michal Dovčiak , Teruaki Enoto , Yuri Evangelista , Sergio Fabiani , Riccardo Ferrazzoli , Javier A Garcia , Shuichi Gunji , Kiyoshi Hayashida , Jeremy Heyl , Wataru Iwakiri , Philip Kaaret , Vladimir Karas , Fabian Kislat , Takao Kitaguchi , Jeffery J Kolodziejczak , Henric Krawczynski , Fabio La Monaca , Luca Latronico , Simone Maldera , Alberto Manfreda , Frédéric Marin (1) , Andrea Marinucci , Francesco Massaro , Giorgio Matt , Ikuyuki Mitsuishi , Fabio Muleri , Michela Negro , Chi-Yung Ng , Stephen L O’dell , Nicola Omodei , Chiara Oppedisano , Alessandro Papitto , George G Pavlov , Abel Lawrence Peirson , Matteo Perri , Melissa Pesce-Rollins , Pierre-Olivier Petrucci (2) , Maura Pilia , Andrea Possenti , Juri Poutanen , Simonetta Puccetti , Brian D Ramsey , John Rankin , Ajay Ratheesh , Oliver J Roberts , Carmelo Sgrò , Patrick Slane , Paolo Soffitta , Gloria Spandre , Douglas A Swartz , Toru Tamagawa , Roberto Taverna , Yuzuru Tawara , Allyn F Tennant , Nicholas E Thomas , Francesco Tombesi , Alessio Trois , Sergey S Tsygankov , Roberto Turolla , Jacco Vink , Martin C Weisskopf , Kinwah Wu , Fei Xie , Silvia Zane
Pouya M Kouch
Ioannis Liodakis
Riccardo Middei
Dawoon E Kim
Fabrizio Tavecchio
Alan P Marscher
Herman L Marshall
Steven R Ehlert
Laura Di Gesu
Svetlana G Jorstad
Iván Agudo
Grzegorz M Madejski
  • Fonction : Auteur
Roger W Romani
Manel Errando
Elina Lindfors
Kari Nilsson
Ella Toppari
  • Fonction : Auteur
Stephen B Potter
  • Fonction : Auteur
Ryo Imazawa
  • Fonction : Auteur
Mahito Sasada
Yasushi Fukazawa
  • Fonction : Auteur
Koji S Kawabata
  • Fonction : Auteur
Makoto Uemura
Tsunefumi Mizuno
Tatsuya Nakaoka
  • Fonction : Auteur
Hiroshi Akitaya
  • Fonction : Auteur
Callum Mccall
  • Fonction : Auteur
Helen E Jermak
Iain A Steele
Ioannis Myserlis
Mark Gurwell
Garrett K Keating
Ramprasad Rao
  • Fonction : Auteur
Sincheol Kang
Sang-Sung Lee
Sang-Hyun Kim
Whee Yeon Cheong
Hyeon-Woo Jeong
Emmanouil Angelakis
Alexander Kraus
Francisco José Aceituno
Giacomo Bonnoli
Víctor Casanova
Juan Escudero
Beatriz Agís-González
César Husillos
Daniel Morcuende
Jorge Otero-Santos
Alfredo Sota
Rumen Bachev
  • Fonction : Auteur
Lucio Angelo Antonelli
Matteo Bachetti
Luca Baldini
Wayne H Baumgartner
Ronaldo Bellazzini
Stefano Bianchi
Stephen D Bongiorno
Raffaella Bonino
Alessandro Brez
Niccolò Bucciantini
Fiamma Capitanio
Simone Castellano
Elisabetta Cavazzuti
Chien-Ting Chen
Stefano Ciprini
Enrico Costa
Alessandra de Rosa
Ettore del Monte
Niccolò Di Lalla
Alessandro Di Marco
Immacolata Donnarumma
Victor Doroshenko
Michal Dovčiak
Teruaki Enoto
Yuri Evangelista
Sergio Fabiani
Riccardo Ferrazzoli
Javier A Garcia
Shuichi Gunji
Kiyoshi Hayashida
  • Fonction : Auteur
Jeremy Heyl
Wataru Iwakiri
Philip Kaaret
Vladimir Karas
Fabian Kislat
Takao Kitaguchi
  • Fonction : Auteur
Jeffery J Kolodziejczak
Henric Krawczynski
Fabio La Monaca
Luca Latronico
Simone Maldera
Alberto Manfreda
Frédéric Marin
Observatoire astronomique de Strasbourg
Andrea Marinucci
Francesco Massaro
Giorgio Matt
Ikuyuki Mitsuishi
  • Fonction : Auteur
Fabio Muleri
Michela Negro
Chi-Yung Ng
Stephen L O’dell
Nicola Omodei
Chiara Oppedisano
Alessandro Papitto
George G Pavlov
Abel Lawrence Peirson
Matteo Perri
Melissa Pesce-Rollins
Pierre-Olivier Petrucci
Institut de Planétologie et d'Astrophysique de Grenoble
Maura Pilia
Andrea Possenti
Juri Poutanen
Simonetta Puccetti
Brian D Ramsey
John Rankin
Ajay Ratheesh
Oliver J Roberts
Carmelo Sgrò
Patrick Slane
Paolo Soffitta
Gloria Spandre
Douglas A Swartz
Toru Tamagawa
Roberto Taverna
Yuzuru Tawara
  • Fonction : Auteur
Allyn F Tennant
Nicholas E Thomas
Francesco Tombesi
Alessio Trois
Sergey S Tsygankov
Roberto Turolla
Jacco Vink
Martin C Weisskopf
Kinwah Wu
Fei Xie
Silvia Zane

Résumé

We report the X-ray polarization properties of the high-synchrotron-peaked (HSP) blazar PKS 2155-304 based on observations with the Imaging X-ray Polarimetry Explorer (IXPE). We observed the source between Oct 27 and Nov 7, 2023. We also conducted an extensive contemporaneous multiwavelength (MW) campaign. We find that during the first half (T 1 ) of the IXPE pointing, the source exhibited the highest X-ray polarization degree detected for an HSP blazar thus far, (30.7 ± 2.0)%; this dropped to (15.3 ± 2.1)% during the second half (T 2 ). The X-ray polarization angle remained stable during the IXPE pointing at 129.4 • ± 1.8 • and 125.4 • ± 3.9 • during T 1 and T 2 , respectively. Meanwhile, the optical polarization degree remained stable during the IXPE pointing, with average host-galaxy-corrected values of (4.3 ± 0.7)% and (3.8 ± 0.9)% during the T 1 and T 2 , respectively. During the IXPE pointing, the optical polarization angle changed achromatically from ∼140 • to ∼90 • and back to ∼130 • . Despite several attempts, we only detected (99.7% conf.) the radio polarization once (during T 2 , at 225.5 GHz): with degree (1.7 ± 0.4)% and angle 112.5 • ± 5.5 • . The direction of the broad pc-scale jet is rather ambiguous and has been found to point to the east and south at different epochs; however, on larger scales (>1.5 pc) the jet points toward the southeast (∼135 • ), similarly to all of the MW polarization angles. Moreover, the X-ray-to-optical polarization degree ratios of ∼7 and ∼4 during T 1 and T 2 , respectively, are similar to previous IXPE results for several HSP blazars. These findings, combined with the lack of correlation of temporal variability between the MW polarization properties, agree with an energy-stratified shock-acceleration scenario in HSP blazars.

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Planète et Univers [physics]
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https://insu.hal.science/insu-04702993

Soumis le : jeudi 19 septembre 2024-17:02:53

Dernière modification le : lundi 9 décembre 2024-03:34:02

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insu-04702993 , version 1 (19-09-2024)

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Pouya M Kouch, Ioannis Liodakis, Riccardo Middei, Dawoon E Kim, Fabrizio Tavecchio, et al.. IXPE observation of PKS 2155–304 reveals the most highly polarized blazar. Astronomy & Astrophysics - A&A, 2024, 689, pp.A119. ⟨10.1051/0004-6361/202449166⟩. ⟨insu-04702993⟩

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