Polarized x-rays from a magnetar
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- Roberto Taverna
- Department of Physics and Astronomy, University of Padova, I-35131 Padova, Italy.
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- Roberto Turolla
- Department of Physics and Astronomy, University of Padova, I-35131 Padova, Italy.
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- Fabio Muleri
- Istituto di Astrofisica e Planetologia Spaziali, Istituto Nazionale di Astrofisica (INAF), I-00133 Roma, Italy.
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- Jeremy Heyl
- Department of Physics and Astronomy, University of British Columbia, Vancouver, BC V6T 1Z1, Canada.
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- Silvia Zane
- Mullard Space Science Laboratory, University College London, Holmbury St Mary Dorking RH5 6NT, UK.
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- Luca Baldini
- Dipartimento di Fisica Enrico Fermi, Università di Pisa, I-56127 Pisa, Italy.
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- Denis González-Caniulef
- Department of Physics and Astronomy, University of British Columbia, Vancouver, BC V6T 1Z1, Canada.
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- Matteo Bachetti
- Osservatorio Astronomico di Cagliari, INAF, I-09047 Selargius, Italy.
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- John Rankin
- Istituto di Astrofisica e Planetologia Spaziali, Istituto Nazionale di Astrofisica (INAF), I-00133 Roma, Italy.
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- Ilaria Caiazzo
- Theoretical AstroPhysics Including Relativity and Cosmology, Caltech, Pasadena, CA 91125, USA.
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- Niccolò Di Lalla
- Deparment of Physics and Kavli Institute for Particle Astrophysics and Cosmology, Stanford University, Stanford, CA 94305, USA.
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- Victor Doroshenko
- Institut für Astronomie und Astrophysik, Universität Tübingen, 72076 Tübingen, Germany.
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- Manel Errando
- Physics Department and McDonnell Center for the Space Sciences, Washington University, St. Louis, MO 63130, USA.
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- Ephraim Gau
- Physics Department and McDonnell Center for the Space Sciences, Washington University, St. Louis, MO 63130, USA.
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- Demet Kırmızıbayrak
- Department of Physics and Astronomy, University of British Columbia, Vancouver, BC V6T 1Z1, Canada.
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- Henric Krawczynski
- Physics Department and McDonnell Center for the Space Sciences, Washington University, St. Louis, MO 63130, USA.
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- Michela Negro
- Center for Space Sciences and Technology, University of Maryland, Baltimore, MD 21250, USA.
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- Mason Ng
- Kavli Institute for Astrophysics and Space Research, Massachusetts Institute of Technology, Cambridge, MA 02139, USA.
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- Nicola Omodei
- Deparment of Physics and Kavli Institute for Particle Astrophysics and Cosmology, Stanford University, Stanford, CA 94305, USA.
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- Andrea Possenti
- Osservatorio Astronomico di Cagliari, INAF, I-09047 Selargius, Italy.
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- Toru Tamagawa
- RIKEN Cluster for Pioneering Research, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan.
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- Keisuke Uchiyama
- RIKEN Nishina Center, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan.
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- Martin C. Weisskopf
- NASA Marshall Space Flight Center (MSFC), Huntsville, AL 35812, USA.
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- Ivan Agudo
- Instituto de Astrofísica de Andalucía, 18008 Granada, Spain.
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- Lucio A. Antonelli
- Osservatorio Astronomico di Roma, INAF, 00040 Monte Porzio Catone, Italy.
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- Wayne H. Baumgartner
- NASA Marshall Space Flight Center (MSFC), Huntsville, AL 35812, USA.
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- Ronaldo Bellazzini
- Istituto Nazionale di Fisica Nucleare (INFN) Sezione di Pisa, I-56127 Pisa, Italy.
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- Stefano Bianchi
- Dipartimento di Matematica e Fisica, Università degli Studi Roma Tre, 00146 Roma, Italy.
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- Stephen D. Bongiorno
- NASA Marshall Space Flight Center (MSFC), Huntsville, AL 35812, USA.
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- Raffaella Bonino
- INFN Sezione di Torino, 10125 Torino, Italy.
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- Alessandro Brez
- Istituto Nazionale di Fisica Nucleare (INFN) Sezione di Pisa, I-56127 Pisa, Italy.
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- Niccolò Bucciantini
- Osservatorio Astrofisico di Arcetri, INAF, 50125 Firenze, Italy.
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- Fiamma Capitanio
- Istituto di Astrofisica e Planetologia Spaziali, Istituto Nazionale di Astrofisica (INAF), I-00133 Roma, Italy.
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- Simone Castellano
- Istituto Nazionale di Fisica Nucleare (INFN) Sezione di Pisa, I-56127 Pisa, Italy.
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- Elisabetta Cavazzuti
- ASI, 00133 Roma, Italy.
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- Stefano Ciprini
- Space Science Data Center (SSDC), Agenzia Spaziale Italiana (ASI), 00133 Roma, Italy.
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- Enrico Costa
- Istituto di Astrofisica e Planetologia Spaziali, Istituto Nazionale di Astrofisica (INAF), I-00133 Roma, Italy.
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- Alessandra De Rosa
- Istituto di Astrofisica e Planetologia Spaziali, Istituto Nazionale di Astrofisica (INAF), I-00133 Roma, Italy.
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- Ettore Del Monte
- Istituto di Astrofisica e Planetologia Spaziali, Istituto Nazionale di Astrofisica (INAF), I-00133 Roma, Italy.
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- Laura Di Gesu
- ASI, 00133 Roma, Italy.
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- Alessandro Di Marco
- Istituto di Astrofisica e Planetologia Spaziali, Istituto Nazionale di Astrofisica (INAF), I-00133 Roma, Italy.
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- Immacolata Donnarumma
- ASI, 00133 Roma, Italy.
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- Michal Dovčiak
- Astronomical Institute of the Czech Academy of Sciences, 14100 Praha 4, Czech Republic.
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- Steven R. Ehlert
- NASA Marshall Space Flight Center (MSFC), Huntsville, AL 35812, USA.
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- Teruaki Enoto
- RIKEN Cluster for Pioneering Research, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan.
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- Yuri Evangelista
- Istituto di Astrofisica e Planetologia Spaziali, Istituto Nazionale di Astrofisica (INAF), I-00133 Roma, Italy.
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- Sergio Fabiani
- Istituto di Astrofisica e Planetologia Spaziali, Istituto Nazionale di Astrofisica (INAF), I-00133 Roma, Italy.
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- Riccardo Ferrazzoli
- Istituto di Astrofisica e Planetologia Spaziali, Istituto Nazionale di Astrofisica (INAF), I-00133 Roma, Italy.
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- Javier A. Garcia
- Cahill Center for Astronomy and Astrophysics, Caltech, Pasadena, CA 91125, USA.
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- Shuichi Gunji
- Department of Physics, Yamagata University, 1-4-12 Kojirakawa-machi, Yamagata-shi 990-8560, Japan.
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- Kiyoshi Hayashida
- Department of Earth and Space Science, Osaka University, 1-1 Yamadaoka, Suita, Osaka 565-0871, Japan.
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- Wataru Iwakiri
- Department of Physics, Chuo University, 1-13-27 Kasuga, Bunkyo-ku, Tokyo 112-8551, Japan.
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- Svetlana G. Jorstad
- Institute for Astrophysical Research, Boston University, Boston, MA 02215, USA.
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- Vladimir Karas
- Astronomical Institute of the Czech Academy of Sciences, 14100 Praha 4, Czech Republic.
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- Takao Kitaguchi
- RIKEN Cluster for Pioneering Research, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan.
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- Jeffery J. Kolodziejczak
- NASA Marshall Space Flight Center (MSFC), Huntsville, AL 35812, USA.
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- Fabio La Monaca
- Istituto di Astrofisica e Planetologia Spaziali, Istituto Nazionale di Astrofisica (INAF), I-00133 Roma, Italy.
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- Luca Latronico
- INFN Sezione di Torino, 10125 Torino, Italy.
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- Ioannis Liodakis
- Finnish Centre for Astronomy with the European Southern Observatory, University of Turku, 20014 Turku, Finland.
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- Simone Maldera
- INFN Sezione di Torino, 10125 Torino, Italy.
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- Alberto Manfreda
- Istituto Nazionale di Fisica Nucleare (INFN) Sezione di Pisa, I-56127 Pisa, Italy.
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- Frédéric Marin
- Observatoire Astronomique de Strasbourg, Université de Strasbourg, 67000 Strasbourg, France.
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- Andrea Marinucci
- ASI, 00133 Roma, Italy.
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- Alan P. Marscher
- Institute for Astrophysical Research, Boston University, Boston, MA 02215, USA.
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- Herman L. Marshall
- Kavli Institute for Astrophysics and Space Research, Massachusetts Institute of Technology, Cambridge, MA 02139, USA.
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- Giorgio Matt
- Dipartimento di Matematica e Fisica, Università degli Studi Roma Tre, 00146 Roma, Italy.
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- Ikuyuki Mitsuishi
- Division of Particle and Astrophysical Science, Graduate School of Science, Nagoya University, Furo-cho, Chikusa-ku, Nagoya, Aichi 464-8602, Japan.
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- Tsunefumi Mizuno
- Hiroshima Astrophysical Science Center, Hiroshima University, 1-3-1 Kagamiyama, Higashi-Hiroshima, Hiroshima 739-8526, Japan.
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- Stephen C.-Y. Ng
- Department of Physics, The University of Hong Kong, Pokfulam, Hong Kong.
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- Stephen L. O’Dell
- NASA Marshall Space Flight Center (MSFC), Huntsville, AL 35812, USA.
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- Chiara Oppedisano
- INFN Sezione di Torino, 10125 Torino, Italy.
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- Alessandro Papitto
- Osservatorio Astronomico di Roma, INAF, 00040 Monte Porzio Catone, Italy.
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- George G. Pavlov
- Department of Astronomy and Astrophysics, Pennsylvania State University, University Park, PA 16801, USA.
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- Abel L. Peirson
- Deparment of Physics and Kavli Institute for Particle Astrophysics and Cosmology, Stanford University, Stanford, CA 94305, USA.
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- Matteo Perri
- Osservatorio Astronomico di Roma, INAF, 00040 Monte Porzio Catone, Italy.
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- Melissa Pesce-Rollins
- Istituto Nazionale di Fisica Nucleare (INFN) Sezione di Pisa, I-56127 Pisa, Italy.
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- Maura Pilia
- Osservatorio Astronomico di Cagliari, INAF, I-09047 Selargius, Italy.
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- Juri Poutanen
- Department of Physics and Astronomy, University of Turku, 20014 Turku, Finland.
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- Simonetta Puccetti
- Space Science Data Center (SSDC), Agenzia Spaziale Italiana (ASI), 00133 Roma, Italy.
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- Brian D. Ramsey
- NASA Marshall Space Flight Center (MSFC), Huntsville, AL 35812, USA.
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- Ajay Ratheesh
- Istituto di Astrofisica e Planetologia Spaziali, Istituto Nazionale di Astrofisica (INAF), I-00133 Roma, Italy.
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- Roger W. Romani
- Deparment of Physics and Kavli Institute for Particle Astrophysics and Cosmology, Stanford University, Stanford, CA 94305, USA.
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- Carmelo Sgrò
- Istituto Nazionale di Fisica Nucleare (INFN) Sezione di Pisa, I-56127 Pisa, Italy.
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- Patrick Slane
- Center for Astrophysics, Harvard & Smithsonian, Cambridge, MA 02138, USA.
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- Paolo Soffitta
- Istituto di Astrofisica e Planetologia Spaziali, Istituto Nazionale di Astrofisica (INAF), I-00133 Roma, Italy.
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- Gloria Spandre
- Istituto Nazionale di Fisica Nucleare (INFN) Sezione di Pisa, I-56127 Pisa, Italy.
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- Fabrizio Tavecchio
- Osservatorio Astronomico di Brera, INAF, 23807 Merate, Italy.
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- Yuzuru Tawara
- Division of Particle and Astrophysical Science, Graduate School of Science, Nagoya University, Furo-cho, Chikusa-ku, Nagoya, Aichi 464-8602, Japan.
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- Allyn F. Tennant
- NASA Marshall Space Flight Center (MSFC), Huntsville, AL 35812, USA.
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- Nicholas E. Thomas
- NASA Marshall Space Flight Center (MSFC), Huntsville, AL 35812, USA.
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- Francesco Tombesi
- Dipartimento di Fisica, Università degli Studi di Roma Tor Vergata, 00133 Roma, Italy.
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- Alessio Trois
- Osservatorio Astronomico di Cagliari, INAF, I-09047 Selargius, Italy.
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- Sergey S. Tsygankov
- Department of Physics and Astronomy, University of Turku, 20014 Turku, Finland.
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- Jacco Vink
- Anton Pannekoek Institute for Astronomy, University of Amsterdam, 1098 XH Amsterdam, Netherlands.
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- Kinwah Wu
- Mullard Space Science Laboratory, University College London, Holmbury St Mary Dorking RH5 6NT, UK.
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- Fei Xie
- Guangxi Key Laboratory for Relativistic Astrophysics, School of Physical Science and Technology, Guangxi University, Nanning 530004, China.
Description
<jats:p>Magnetars are neutron stars with ultrastrong magnetic fields, which can be observed in x-rays. Polarization measurements could provide information on their magnetic fields and surface properties. We observed polarized x-rays from the magnetar 4U 0142+61 using the Imaging X-ray Polarimetry Explorer and found a linear polarization degree of 13.5 ± 0.8% averaged over the 2– to 8–kilo–electron volt band. The polarization changes with energy: The degree is 15.0 ± 1.0% at 2 to 4 kilo–electron volts, drops below the instrumental sensitivity ~4 to 5 kilo–electron volts, and rises to 35.2 ± 7.1% at 5.5 to 8 kilo–electron volts. The polarization angle also changes by 90° at ~4 to 5 kilo–electron volts. These results are consistent with a model in which thermal radiation from the magnetar surface is reprocessed by scattering off charged particles in the magnetosphere.</jats:p>
Journal
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- Science
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Science 378 (6620), 646-650, 2022-11-11
American Association for the Advancement of Science (AAAS)
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Details 詳細情報について
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- CRID
- 1360298757173246848
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- ISSN
- 10959203
- 00368075
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- Data Source
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- Crossref
- KAKEN