X-Ray Polarimetry of the Dipping Accreting Neutron Star 4U 1624-49

Fuente: arXiv

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Bibliographic Details
Main Authors:	Saade, M. Lynne, Kaaret, Philip, Gnarini, Andrea, Poutanen, Juri, Ursini, Francesco, Bianchi, Stefano, Bobrikova, Anna, La Monaca, Fabio, Di Marco, Alessandro, Capitanio, Fiamma, Veledina, Alexandra, Agudo, Ivan, Antonelli, Lucio A., Bachetti, Matteo, Baldini, Luca, Baumgartner, Wayne H., Bellazzini, Ronaldo, Bongiorno, Stephen D., Bonino, Raffaella, Brez, Alessandro, Bucciantini, Niccolo, Castellano, Simone, Cavazzuti, Elisabetta, Chen, Chien-Ting, Ciprini, Stefano, Costa, Enrico, De Rosa, Alessandra, Del Monte, Ettore, Di Gesù, Laura, Di Lalla, Niccolo, Donnarumma, Immacolata, Doroshenko, Victor, Dovciak, Michal, Ehlert, Steven R., Emote, Teruaki, Evangelista, Yuri, Fabiani, Sergio, Ferrazzoli, Riccardo, Garcia, Javier A., Gunji, Shuichi, Hayashida, Kiyoshi, Heyl, Jeremy, Iwakiri, Wataru, Jorstad, Svetlana G., Karas, Vladimir, Kislat, Fabian, Kitaguchi, Takao, Kolodziejczak, Jeffery J., Krawczynski, Henric, Latronico, Luca, Liodakis, Ioannis, Maldera, Simone, Manfreda, Alberto, Marin, Frederic, Marinucci, Andrea, Marscher, Alan P., Marshall, Herman L., Massaro, Francesco, Matt, Giorgio, Mitsuishi, Ikuyuki, Mizudo, Tsunefumi, Muleri, Fabio, Negro, Michela, Ng, Chi-Yung, O'Dell, Stephen L., Omodei, Nicola, Oppedisano, Chiara, Papitto, Alessandro, Pavlov, George G., Peirson, Abel L., Perri, Matteo, Pesce-Rollins, Melissa, Petrucci, Pierre-Oliver, Pilia, Maura, Possenti, Andrea, Puccetti, Simonetta, Ramsey, Brian D., Rankin, John, Ratheesh, Ajay, Roberts, Oliver J., Romani, Roger W., Sgro, Carmelo, Slane, Patrick, Soffitta, Paolo, Spandre, Gloria, Zwartz, Douglas Z., Tamagawa, Toru, Tavecchio, Fabrizio, Taverna, Roberto, Tawara, Yuzuru, Tenant, Allyn F., Thomas, Nicholas E., Tombesi, Francesco, Trois, Alessio, Tsygankov, Sergey S., Turolla, Roberto, Vink, Jacco, Weisskopf, Martin C., Wu, Kinwah, Xie, Fei, Zane, Silvia
Format:	Preprint
Published:	2023
Subjects:	High Energy Astrophysical Phenomena
Online Access:	Acceder al recurso
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author	Saade, M. Lynne Kaaret, Philip Gnarini, Andrea Poutanen, Juri Ursini, Francesco Bianchi, Stefano Bobrikova, Anna La Monaca, Fabio Di Marco, Alessandro Capitanio, Fiamma Veledina, Alexandra Agudo, Ivan Antonelli, Lucio A. Bachetti, Matteo Baldini, Luca Baumgartner, Wayne H. Bellazzini, Ronaldo Bongiorno, Stephen D. Bonino, Raffaella Brez, Alessandro Bucciantini, Niccolo Castellano, Simone Cavazzuti, Elisabetta Chen, Chien-Ting Ciprini, Stefano Costa, Enrico De Rosa, Alessandra Del Monte, Ettore Di Gesù, Laura Di Lalla, Niccolo Donnarumma, Immacolata Doroshenko, Victor Dovciak, Michal Ehlert, Steven R. Emote, Teruaki Evangelista, Yuri Fabiani, Sergio Ferrazzoli, Riccardo Garcia, Javier A. Gunji, Shuichi Hayashida, Kiyoshi Heyl, Jeremy Iwakiri, Wataru Jorstad, Svetlana G. Karas, Vladimir Kislat, Fabian Kitaguchi, Takao Kolodziejczak, Jeffery J. Krawczynski, Henric Latronico, Luca Liodakis, Ioannis Maldera, Simone Manfreda, Alberto Marin, Frederic Marinucci, Andrea Marscher, Alan P. Marshall, Herman L. Massaro, Francesco Matt, Giorgio Mitsuishi, Ikuyuki Mizudo, Tsunefumi Muleri, Fabio Negro, Michela Ng, Chi-Yung O'Dell, Stephen L. Omodei, Nicola Oppedisano, Chiara Papitto, Alessandro Pavlov, George G. Peirson, Abel L. Perri, Matteo Pesce-Rollins, Melissa Petrucci, Pierre-Oliver Pilia, Maura Possenti, Andrea Puccetti, Simonetta Ramsey, Brian D. Rankin, John Ratheesh, Ajay Roberts, Oliver J. Romani, Roger W. Sgro, Carmelo Slane, Patrick Soffitta, Paolo Spandre, Gloria Zwartz, Douglas Z. Tamagawa, Toru Tavecchio, Fabrizio Taverna, Roberto Tawara, Yuzuru Tenant, Allyn F. Thomas, Nicholas E. Tombesi, Francesco Trois, Alessio Tsygankov, Sergey S. Turolla, Roberto Vink, Jacco Weisskopf, Martin C. Wu, Kinwah Xie, Fei Zane, Silvia
author_facet	Saade, M. Lynne Kaaret, Philip Gnarini, Andrea Poutanen, Juri Ursini, Francesco Bianchi, Stefano Bobrikova, Anna La Monaca, Fabio Di Marco, Alessandro Capitanio, Fiamma Veledina, Alexandra Agudo, Ivan Antonelli, Lucio A. Bachetti, Matteo Baldini, Luca Baumgartner, Wayne H. Bellazzini, Ronaldo Bongiorno, Stephen D. Bonino, Raffaella Brez, Alessandro Bucciantini, Niccolo Castellano, Simone Cavazzuti, Elisabetta Chen, Chien-Ting Ciprini, Stefano Costa, Enrico De Rosa, Alessandra Del Monte, Ettore Di Gesù, Laura Di Lalla, Niccolo Donnarumma, Immacolata Doroshenko, Victor Dovciak, Michal Ehlert, Steven R. Emote, Teruaki Evangelista, Yuri Fabiani, Sergio Ferrazzoli, Riccardo Garcia, Javier A. Gunji, Shuichi Hayashida, Kiyoshi Heyl, Jeremy Iwakiri, Wataru Jorstad, Svetlana G. Karas, Vladimir Kislat, Fabian Kitaguchi, Takao Kolodziejczak, Jeffery J. Krawczynski, Henric Latronico, Luca Liodakis, Ioannis Maldera, Simone Manfreda, Alberto Marin, Frederic Marinucci, Andrea Marscher, Alan P. Marshall, Herman L. Massaro, Francesco Matt, Giorgio Mitsuishi, Ikuyuki Mizudo, Tsunefumi Muleri, Fabio Negro, Michela Ng, Chi-Yung O'Dell, Stephen L. Omodei, Nicola Oppedisano, Chiara Papitto, Alessandro Pavlov, George G. Peirson, Abel L. Perri, Matteo Pesce-Rollins, Melissa Petrucci, Pierre-Oliver Pilia, Maura Possenti, Andrea Puccetti, Simonetta Ramsey, Brian D. Rankin, John Ratheesh, Ajay Roberts, Oliver J. Romani, Roger W. Sgro, Carmelo Slane, Patrick Soffitta, Paolo Spandre, Gloria Zwartz, Douglas Z. Tamagawa, Toru Tavecchio, Fabrizio Taverna, Roberto Tawara, Yuzuru Tenant, Allyn F. Thomas, Nicholas E. Tombesi, Francesco Trois, Alessio Tsygankov, Sergey S. Turolla, Roberto Vink, Jacco Weisskopf, Martin C. Wu, Kinwah Xie, Fei Zane, Silvia
contents	We present the first X-ray polarimetric study of the dipping accreting neutron star 4U 1624$-$49 with the Imaging X-ray Polarimetry Explorer (IXPE). We report a detection of polarization in the non-dip time intervals with a confidence level of 99.99%. We find an average polarization degree (PD) of $3.1\pm0.7$% and a polarization angle of $81\pm6$ degrees east of north in the 2-8 keV band. We report an upper limit on the PD of 22% during the X-ray dips with 95% confidence. The PD increases with energy, reaching from $3.0\pm0.9$% in the 4-6 keV band to $6\pm2$% in the 6-8 keV band. This indicates the polarization likely arises from Comptonization. The high PD observed is unlikely to be produced by Comptonization in the boundary layer or spreading layer alone. It can be produced by the addition of an extended geometrically thin slab corona covering part of the accretion disk, as assumed in previous models of dippers, and/or a reflection component from the accretion disk.
format	Preprint
id	arxiv_https___arxiv_org_abs_2312_11655
institution	arXiv
publishDate	2023
record_format	arxiv
spellingShingle	X-Ray Polarimetry of the Dipping Accreting Neutron Star 4U 1624-49 Saade, M. Lynne Kaaret, Philip Gnarini, Andrea Poutanen, Juri Ursini, Francesco Bianchi, Stefano Bobrikova, Anna La Monaca, Fabio Di Marco, Alessandro Capitanio, Fiamma Veledina, Alexandra Agudo, Ivan Antonelli, Lucio A. Bachetti, Matteo Baldini, Luca Baumgartner, Wayne H. Bellazzini, Ronaldo Bongiorno, Stephen D. Bonino, Raffaella Brez, Alessandro Bucciantini, Niccolo Castellano, Simone Cavazzuti, Elisabetta Chen, Chien-Ting Ciprini, Stefano Costa, Enrico De Rosa, Alessandra Del Monte, Ettore Di Gesù, Laura Di Lalla, Niccolo Donnarumma, Immacolata Doroshenko, Victor Dovciak, Michal Ehlert, Steven R. Emote, Teruaki Evangelista, Yuri Fabiani, Sergio Ferrazzoli, Riccardo Garcia, Javier A. Gunji, Shuichi Hayashida, Kiyoshi Heyl, Jeremy Iwakiri, Wataru Jorstad, Svetlana G. Karas, Vladimir Kislat, Fabian Kitaguchi, Takao Kolodziejczak, Jeffery J. Krawczynski, Henric Latronico, Luca Liodakis, Ioannis Maldera, Simone Manfreda, Alberto Marin, Frederic Marinucci, Andrea Marscher, Alan P. Marshall, Herman L. Massaro, Francesco Matt, Giorgio Mitsuishi, Ikuyuki Mizudo, Tsunefumi Muleri, Fabio Negro, Michela Ng, Chi-Yung O'Dell, Stephen L. Omodei, Nicola Oppedisano, Chiara Papitto, Alessandro Pavlov, George G. Peirson, Abel L. Perri, Matteo Pesce-Rollins, Melissa Petrucci, Pierre-Oliver Pilia, Maura Possenti, Andrea Puccetti, Simonetta Ramsey, Brian D. Rankin, John Ratheesh, Ajay Roberts, Oliver J. Romani, Roger W. Sgro, Carmelo Slane, Patrick Soffitta, Paolo Spandre, Gloria Zwartz, Douglas Z. Tamagawa, Toru Tavecchio, Fabrizio Taverna, Roberto Tawara, Yuzuru Tenant, Allyn F. Thomas, Nicholas E. Tombesi, Francesco Trois, Alessio Tsygankov, Sergey S. Turolla, Roberto Vink, Jacco Weisskopf, Martin C. Wu, Kinwah Xie, Fei Zane, Silvia High Energy Astrophysical Phenomena We present the first X-ray polarimetric study of the dipping accreting neutron star 4U 1624$-$49 with the Imaging X-ray Polarimetry Explorer (IXPE). We report a detection of polarization in the non-dip time intervals with a confidence level of 99.99%. We find an average polarization degree (PD) of $3.1\pm0.7$% and a polarization angle of $81\pm6$ degrees east of north in the 2-8 keV band. We report an upper limit on the PD of 22% during the X-ray dips with 95% confidence. The PD increases with energy, reaching from $3.0\pm0.9$% in the 4-6 keV band to $6\pm2$% in the 6-8 keV band. This indicates the polarization likely arises from Comptonization. The high PD observed is unlikely to be produced by Comptonization in the boundary layer or spreading layer alone. It can be produced by the addition of an extended geometrically thin slab corona covering part of the accretion disk, as assumed in previous models of dippers, and/or a reflection component from the accretion disk.
title	X-Ray Polarimetry of the Dipping Accreting Neutron Star 4U 1624-49
topic	High Energy Astrophysical Phenomena
url	https://arxiv.org/abs/2312.11655