Discovery of X-Ray Polarization from the Black Hole Transient Swift J1727.8−1613

Alexandra Veledina; Fabio Muleri; Michal Dovčiak; Juri Poutanen; Ajay Ratheesh; Fiamma Capitanio; Giorgio Matt; Paolo Soffitta; Allyn F. Tennant; Michela Negro; Philip Kaaret; Enrico Costa; Adam Ingram; Jiří Svoboda; Henric Krawczynski; Stefano Bianchi; James F. Steiner; Javier A. García; Vadim Kravtsov; Anagha P. Nitindala; Melissa Ewing; Guglielmo Mastroserio; Andrea Marinucci; Francesco Ursini; Francesco Tombesi; Sergey S. Tsygankov; Yi Jung Yang; Martin C. Weisskopf; Sergei A. Trushkin; Elise Egron; Maria Noemi Iacolina; Maura Pilia; Lorenzo Marra; Romana Mikušincová; Edward Nathan; Maxime Parra; Pierre Olivier Petrucci; Jakub Podgorný; Stefano Tugliani; Silvia Zane; Wenda Zhang; Iván Agudo; Lucio A. Antonelli; Matteo Bachetti; Luca Baldini; Wayne H. Baumgartner; Ronaldo Bellazzini; Stephen D. Bongiorno; Raffaella Bonino; Alessandro Brez; Niccolò Bucciantini; Simone Castellano; Elisabetta Cavazzuti; Chien Ting Chen; Stefano Ciprini; Alessandra De Rosa; Ettore Del Monte; Laura Di Gesu; Niccolò Di Lalla; Alessandro Di Marco; Immacolata Donnarumma; Victor Doroshenko; Steven R. Ehlert; Teruaki Enoto; Yuri Evangelista; Sergio Fabiani; Riccardo Ferrazzoli; Shuichi Gunji; Kiyoshi Hayashida; Jeremy Heyl; Wataru Iwakiri; Svetlana G. Jorstad; Vladimir Karas; Fabian Kislat; Takao Kitaguchi; Jeffery J. Kolodziejczak; Fabio La Monaca; Luca Latronico; Ioannis Liodakis; Simone Maldera; Alberto Manfreda; Frédéric Marin; Alan P. Marscher; Herman L. Marshall; Francesco Massaro; Ikuyuki Mitsuishi; Tsunefumi Mizuno; Chi Yung Ng; Stephen L. O’Dell; Nicola Omodei; Chiara Oppedisano; Alessandro Papitto; George G. Pavlov; Abel L. Peirson; Matteo Perri; Melissa Pesce-Rollins; Andrea Possenti; Simonetta Puccetti; Brian D. Ramsey; John Rankin; Oliver J. Roberts; Roger W. Romani; Carmelo Sgrò; Patrick Slane; Gloria Spandre; Douglas A. Swartz; Toru Tamagawa; Fabrizio Tavecchio; Roberto Taverna; Yuzuru Tawara; Nicholas E. Thomas; Alessio Trois; Roberto Turolla; Jacco Vink; Kinwah Wu; Fei Xie

doi:10.3847/2041-8213/ad0781

Discovery of X-Ray Polarization from the Black Hole Transient Swift J1727.8−1613

Alexandra Veledina, Fabio Muleri, Michal Dovčiak, Juri Poutanen, Ajay Ratheesh, Fiamma Capitanio, Giorgio Matt, Paolo Soffitta, Allyn F. Tennant, Michela Negro, Philip Kaaret, Enrico Costa, Adam Ingram, Jiří Svoboda, Henric Krawczynski, Stefano Bianchi, James F. Steiner, Javier A. García, Vadim Kravtsov, Anagha P. NitindalaMelissa Ewing, Guglielmo Mastroserio, Andrea Marinucci, Francesco Ursini, Francesco Tombesi, Sergey S. Tsygankov, Yi Jung Yang, Martin C. Weisskopf, Sergei A. Trushkin, Elise Egron, Maria Noemi Iacolina, Maura Pilia, Lorenzo Marra, Romana Mikušincová, Edward Nathan, Maxime Parra, Pierre Olivier Petrucci, Jakub Podgorný, Stefano Tugliani, Silvia Zane, Wenda Zhang, Iván Agudo, Lucio A. Antonelli, Matteo Bachetti, Luca Baldini, Wayne H. Baumgartner, Ronaldo Bellazzini, Stephen D. Bongiorno, Raffaella Bonino, Alessandro Brez, Niccolò Bucciantini, Simone Castellano, Elisabetta Cavazzuti, Chien Ting Chen, Stefano Ciprini, Alessandra De Rosa, Ettore Del Monte, Laura Di Gesu, Niccolò Di Lalla, Alessandro Di Marco, Immacolata Donnarumma, Victor Doroshenko, Steven R. Ehlert, Teruaki Enoto, Yuri Evangelista, Sergio Fabiani, Riccardo Ferrazzoli, Shuichi Gunji, Kiyoshi Hayashida, Jeremy Heyl, Wataru Iwakiri, Svetlana G. Jorstad, Vladimir Karas, Fabian Kislat, Takao Kitaguchi, Jeffery J. Kolodziejczak, Fabio La Monaca, Luca Latronico, Ioannis Liodakis, Simone Maldera, Alberto Manfreda, Frédéric Marin, Alan P. Marscher, Herman L. Marshall, Francesco Massaro, Ikuyuki Mitsuishi, Tsunefumi Mizuno, Chi Yung Ng, Stephen L. O’Dell, Nicola Omodei, Chiara Oppedisano, Alessandro Papitto, George G. Pavlov, Abel L. Peirson, Matteo Perri, Melissa Pesce-Rollins, Andrea Possenti, Simonetta Puccetti, Brian D. Ramsey, John Rankin, Oliver J. Roberts, Roger W. Romani, Carmelo Sgrò, Patrick Slane, Gloria Spandre, Douglas A. Swartz, Toru Tamagawa, Fabrizio Tavecchio, Roberto Taverna, Yuzuru Tawara, Nicholas E. Thomas, Alessio Trois, Roberto Turolla, Jacco Vink, Kinwah Wu, Fei Xie

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Abstract

We report the first detection of the X-ray polarization of the bright transient Swift J1727.8−1613 with the Imaging X-ray Polarimetry Explorer. The observation was performed at the beginning of the 2023 discovery outburst, when the source resided in the bright hard state. We find a time- and energy-averaged polarization degree of 4.1% ± 0.2% and a polarization angle of 2.°2 ± 1.°3 (errors at 68% confidence level; this translates to ∼20σ significance of the polarization detection). This finding suggests that the hot corona emitting the bulk of the detected X-rays is elongated, rather than spherical. The X-ray polarization angle is consistent with that found in submillimeter wavelengths. Since the submillimeter polarization was found to be aligned with the jet direction in other X-ray binaries, this indicates that the corona is elongated orthogonal to the jet.

Original language	English (US)
Article number	L16
Journal	Astrophysical Journal Letters
Volume	958
Issue number	1
DOIs	https://doi.org/10.3847/2041-8213/ad0781
State	Published - Nov 1 2023

All Science Journal Classification (ASJC) codes

Astronomy and Astrophysics
Space and Planetary Science

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10.3847/2041-8213/ad0781

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Veledina, A., Muleri, F., Dovčiak, M., Poutanen, J., Ratheesh, A., Capitanio, F., Matt, G., Soffitta, P., Tennant, A. F., Negro, M., Kaaret, P., Costa, E., Ingram, A., Svoboda, J., Krawczynski, H., Bianchi, S., Steiner, J. F., García, J. A., Kravtsov, V., ... Xie, F. (2023). Discovery of X-Ray Polarization from the Black Hole Transient Swift J1727.8−1613. Astrophysical Journal Letters, 958(1), Article L16. https://doi.org/10.3847/2041-8213/ad0781

@article{f916b8e111d8496fa3f1a1823fc53ace,

title = "Discovery of X-Ray Polarization from the Black Hole Transient Swift J1727.8−1613",

abstract = "We report the first detection of the X-ray polarization of the bright transient Swift J1727.8−1613 with the Imaging X-ray Polarimetry Explorer. The observation was performed at the beginning of the 2023 discovery outburst, when the source resided in the bright hard state. We find a time- and energy-averaged polarization degree of 4.1% ± 0.2% and a polarization angle of 2.°2 ± 1.°3 (errors at 68% confidence level; this translates to ∼20σ significance of the polarization detection). This finding suggests that the hot corona emitting the bulk of the detected X-rays is elongated, rather than spherical. The X-ray polarization angle is consistent with that found in submillimeter wavelengths. Since the submillimeter polarization was found to be aligned with the jet direction in other X-ray binaries, this indicates that the corona is elongated orthogonal to the jet.",

author = "Alexandra Veledina and Fabio Muleri and Michal Dov{\v c}iak and Juri Poutanen and Ajay Ratheesh and Fiamma Capitanio and Giorgio Matt and Paolo Soffitta and Tennant, {Allyn F.} and Michela Negro and Philip Kaaret and Enrico Costa and Adam Ingram and Ji{\v r}{\'i} Svoboda and Henric Krawczynski and Stefano Bianchi and Steiner, {James F.} and Garc{\'i}a, {Javier A.} and Vadim Kravtsov and Nitindala, {Anagha P.} and Melissa Ewing and Guglielmo Mastroserio and Andrea Marinucci and Francesco Ursini and Francesco Tombesi and Tsygankov, {Sergey S.} and Yang, {Yi Jung} and Weisskopf, {Martin C.} and Trushkin, {Sergei A.} and Elise Egron and Iacolina, {Maria Noemi} and Maura Pilia and Lorenzo Marra and Romana Miku{\v s}incov{\'a} and Edward Nathan and Maxime Parra and Petrucci, {Pierre Olivier} and Jakub Podgorn{\'y} and Stefano Tugliani and Silvia Zane and Wenda Zhang and Iv{\'a}n Agudo and Antonelli, {Lucio A.} and Matteo Bachetti and Luca Baldini and Baumgartner, {Wayne H.} and Ronaldo Bellazzini and Bongiorno, {Stephen D.} and Raffaella Bonino and Alessandro Brez and Niccol{\`o} Bucciantini and Simone Castellano and Elisabetta Cavazzuti and Chen, {Chien Ting} and Stefano Ciprini and {De Rosa}, Alessandra and {Del Monte}, Ettore and {Di Gesu}, Laura and {Di Lalla}, Niccol{\`o} and {Di Marco}, Alessandro and Immacolata Donnarumma and Victor Doroshenko and Ehlert, {Steven R.} and Teruaki Enoto and Yuri Evangelista and Sergio Fabiani and Riccardo Ferrazzoli and Shuichi Gunji and Kiyoshi Hayashida and Jeremy Heyl and Wataru Iwakiri and Jorstad, {Svetlana G.} and Vladimir Karas and Fabian Kislat and Takao Kitaguchi and Kolodziejczak, {Jeffery J.} and {La Monaca}, Fabio and Luca Latronico and Ioannis Liodakis and Simone Maldera and Alberto Manfreda and Fr{\'e}d{\'e}ric Marin and Marscher, {Alan P.} and Marshall, {Herman L.} and Francesco Massaro and Ikuyuki Mitsuishi and Tsunefumi Mizuno and Ng, {Chi Yung} and O{\textquoteright}Dell, {Stephen L.} and Nicola Omodei and Chiara Oppedisano and Alessandro Papitto and Pavlov, {George G.} and Peirson, {Abel L.} and Matteo Perri and Melissa Pesce-Rollins and Andrea Possenti and Simonetta Puccetti and Ramsey, {Brian D.} and John Rankin and Roberts, {Oliver J.} and Romani, {Roger W.} and Carmelo Sgr{\`o} and Patrick Slane and Gloria Spandre and Swartz, {Douglas A.} and Toru Tamagawa and Fabrizio Tavecchio and Roberto Taverna and Yuzuru Tawara and Thomas, {Nicholas E.} and Alessio Trois and Roberto Turolla and Jacco Vink and Kinwah Wu and Fei Xie",

note = "Publisher Copyright: {\textcopyright} 2023. The Author(s). Published by the American Astronomical Society.",

year = "2023",

month = nov,

day = "1",

doi = "10.3847/2041-8213/ad0781",

language = "English (US)",

volume = "958",

journal = "Astrophysical Journal Letters",

issn = "2041-8205",

publisher = "IOP Publishing Ltd.",

number = "1",

}

Veledina, A, Muleri, F, Dovčiak, M, Poutanen, J, Ratheesh, A, Capitanio, F, Matt, G, Soffitta, P, Tennant, AF, Negro, M, Kaaret, P, Costa, E, Ingram, A, Svoboda, J, Krawczynski, H, Bianchi, S, Steiner, JF, García, JA, Kravtsov, V, Nitindala, AP, Ewing, M, Mastroserio, G, Marinucci, A, Ursini, F, Tombesi, F, Tsygankov, SS, Yang, YJ, Weisskopf, MC, Trushkin, SA, Egron, E, Iacolina, MN, Pilia, M, Marra, L, Mikušincová, R, Nathan, E, Parra, M, Petrucci, PO, Podgorný, J, Tugliani, S, Zane, S, Zhang, W, Agudo, I, Antonelli, LA, Bachetti, M, Baldini, L, Baumgartner, WH, Bellazzini, R, Bongiorno, SD, Bonino, R, Brez, A, Bucciantini, N, Castellano, S, Cavazzuti, E, Chen, CT, Ciprini, S, De Rosa, A, Del Monte, E, Di Gesu, L, Di Lalla, N, Di Marco, A, Donnarumma, I, Doroshenko, V, Ehlert, SR, Enoto, T, Evangelista, Y, Fabiani, S, Ferrazzoli, R, Gunji, S, Hayashida, K, Heyl, J, Iwakiri, W, Jorstad, SG, Karas, V, Kislat, F, Kitaguchi, T, Kolodziejczak, JJ, La Monaca, F, Latronico, L, Liodakis, I, Maldera, S, Manfreda, A, Marin, F, Marscher, AP, Marshall, HL, Massaro, F, Mitsuishi, I, Mizuno, T, Ng, CY, O’Dell, SL, Omodei, N, Oppedisano, C, Papitto, A, Pavlov, GG, Peirson, AL, Perri, M, Pesce-Rollins, M, Possenti, A, Puccetti, S, Ramsey, BD, Rankin, J, Roberts, OJ, Romani, RW, Sgrò, C, Slane, P, Spandre, G, Swartz, DA, Tamagawa, T, Tavecchio, F, Taverna, R, Tawara, Y, Thomas, NE, Trois, A, Turolla, R, Vink, J, Wu, K & Xie, F 2023, 'Discovery of X-Ray Polarization from the Black Hole Transient Swift J1727.8−1613', Astrophysical Journal Letters, vol. 958, no. 1, L16. https://doi.org/10.3847/2041-8213/ad0781

TY - JOUR

T1 - Discovery of X-Ray Polarization from the Black Hole Transient Swift J1727.8−1613

AU - Veledina, Alexandra

AU - Muleri, Fabio

AU - Dovčiak, Michal

AU - Poutanen, Juri

AU - Ratheesh, Ajay

AU - Capitanio, Fiamma

AU - Matt, Giorgio

AU - Soffitta, Paolo

AU - Tennant, Allyn F.

AU - Negro, Michela

AU - Kaaret, Philip

AU - Costa, Enrico

AU - Ingram, Adam

AU - Svoboda, Jiří

AU - Krawczynski, Henric

AU - Bianchi, Stefano

AU - Steiner, James F.

AU - García, Javier A.

AU - Kravtsov, Vadim

AU - Nitindala, Anagha P.

AU - Ewing, Melissa

AU - Mastroserio, Guglielmo

AU - Marinucci, Andrea

AU - Ursini, Francesco

AU - Tombesi, Francesco

AU - Tsygankov, Sergey S.

AU - Yang, Yi Jung

AU - Weisskopf, Martin C.

AU - Trushkin, Sergei A.

AU - Egron, Elise

AU - Iacolina, Maria Noemi

AU - Pilia, Maura

AU - Marra, Lorenzo

AU - Mikušincová, Romana

AU - Nathan, Edward

AU - Parra, Maxime

AU - Petrucci, Pierre Olivier

AU - Podgorný, Jakub

AU - Tugliani, Stefano

AU - Zane, Silvia

AU - Zhang, Wenda

AU - Agudo, Iván

AU - Antonelli, Lucio A.

AU - Bachetti, Matteo

AU - Baldini, Luca

AU - Baumgartner, Wayne H.

AU - Bellazzini, Ronaldo

AU - Bongiorno, Stephen D.

AU - Bonino, Raffaella

AU - Brez, Alessandro

AU - Bucciantini, Niccolò

AU - Castellano, Simone

AU - Cavazzuti, Elisabetta

AU - Chen, Chien Ting

AU - Ciprini, Stefano

AU - De Rosa, Alessandra

AU - Del Monte, Ettore

AU - Di Gesu, Laura

AU - Di Lalla, Niccolò

AU - Di Marco, Alessandro

AU - Donnarumma, Immacolata

AU - Doroshenko, Victor

AU - Ehlert, Steven R.

AU - Enoto, Teruaki

AU - Evangelista, Yuri

AU - Fabiani, Sergio

AU - Ferrazzoli, Riccardo

AU - Gunji, Shuichi

AU - Hayashida, Kiyoshi

AU - Heyl, Jeremy

AU - Iwakiri, Wataru

AU - Jorstad, Svetlana G.

AU - Karas, Vladimir

AU - Kislat, Fabian

AU - Kitaguchi, Takao

AU - Kolodziejczak, Jeffery J.

AU - La Monaca, Fabio

AU - Latronico, Luca

AU - Liodakis, Ioannis

AU - Maldera, Simone

AU - Manfreda, Alberto

AU - Marin, Frédéric

AU - Marscher, Alan P.

AU - Marshall, Herman L.

AU - Massaro, Francesco

AU - Mitsuishi, Ikuyuki

AU - Mizuno, Tsunefumi

AU - Ng, Chi Yung

AU - O’Dell, Stephen L.

AU - Omodei, Nicola

AU - Oppedisano, Chiara

AU - Papitto, Alessandro

AU - Pavlov, George G.

AU - Peirson, Abel L.

AU - Perri, Matteo

AU - Pesce-Rollins, Melissa

AU - Possenti, Andrea

AU - Puccetti, Simonetta

AU - Ramsey, Brian D.

AU - Rankin, John

AU - Roberts, Oliver J.

AU - Romani, Roger W.

AU - Sgrò, Carmelo

AU - Slane, Patrick

AU - Spandre, Gloria

AU - Swartz, Douglas A.

AU - Tamagawa, Toru

AU - Tavecchio, Fabrizio

AU - Taverna, Roberto

AU - Tawara, Yuzuru

AU - Thomas, Nicholas E.

AU - Trois, Alessio

AU - Turolla, Roberto

AU - Vink, Jacco

AU - Wu, Kinwah

AU - Xie, Fei

PY - 2023/11/1

Y1 - 2023/11/1

N2 - We report the first detection of the X-ray polarization of the bright transient Swift J1727.8−1613 with the Imaging X-ray Polarimetry Explorer. The observation was performed at the beginning of the 2023 discovery outburst, when the source resided in the bright hard state. We find a time- and energy-averaged polarization degree of 4.1% ± 0.2% and a polarization angle of 2.°2 ± 1.°3 (errors at 68% confidence level; this translates to ∼20σ significance of the polarization detection). This finding suggests that the hot corona emitting the bulk of the detected X-rays is elongated, rather than spherical. The X-ray polarization angle is consistent with that found in submillimeter wavelengths. Since the submillimeter polarization was found to be aligned with the jet direction in other X-ray binaries, this indicates that the corona is elongated orthogonal to the jet.

AB - We report the first detection of the X-ray polarization of the bright transient Swift J1727.8−1613 with the Imaging X-ray Polarimetry Explorer. The observation was performed at the beginning of the 2023 discovery outburst, when the source resided in the bright hard state. We find a time- and energy-averaged polarization degree of 4.1% ± 0.2% and a polarization angle of 2.°2 ± 1.°3 (errors at 68% confidence level; this translates to ∼20σ significance of the polarization detection). This finding suggests that the hot corona emitting the bulk of the detected X-rays is elongated, rather than spherical. The X-ray polarization angle is consistent with that found in submillimeter wavelengths. Since the submillimeter polarization was found to be aligned with the jet direction in other X-ray binaries, this indicates that the corona is elongated orthogonal to the jet.

UR - http://www.scopus.com/inward/record.url?scp=85179472583&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85179472583&partnerID=8YFLogxK

U2 - 10.3847/2041-8213/ad0781

DO - 10.3847/2041-8213/ad0781

M3 - Article

AN - SCOPUS:85179472583

SN - 2041-8205

VL - 958

JO - Astrophysical Journal Letters

JF - Astrophysical Journal Letters

IS - 1

M1 - L16

ER -

Discovery of X-Ray Polarization from the Black Hole Transient Swift J1727.8−1613

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