Tracking the X-Ray Polarization of the Black Hole Transient Swift J1727.8-1613 during a State Transition

Adam Ingram; Niek Bollemeijer; Alexandra Veledina; Michal Dovčiak; Juri Poutanen; Elise Egron; Thomas D. Russell; Sergei A. Trushkin; Michela Negro; Ajay Ratheesh; Fiamma Capitanio; Riley Connors; Joseph Neilsen; Alexander Kraus; Maria Noemi Iacolina; Alberto Pellizzoni; Maura Pilia; Francesco Carotenuto; Giorgio Matt; Guglielmo Mastroserio; Philip Kaaret; Stefano Bianchi; Javier A. García; Matteo Bachetti; Kinwah Wu; Enrico Costa; Melissa Ewing; Vadim Kravtsov; Henric Krawczynski; Vladislav Loktev; Andrea Marinucci; Lorenzo Marra; Romana Mikušincová; Edward Nathan; Maxime Parra; Pierre Olivier Petrucci; Simona Righini; Paolo Soffitta; James F. Steiner; Jiří Svoboda; Francesco Tombesi; Stefano Tugliani; Francesco Ursini; Yi Jung Yang; Silvia Zane; Wenda Zhang; Iván Agudo; Lucio A. Antonelli; 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; Fabio Muleri; 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; Allyn F. Tennant; Nicholas E. Thomas; Alessio Trois; Sergey S. Tsygankov; Roberto Turolla; Jacco Vink; Martin C. Weisskopf; Fei Xie

doi:10.3847/1538-4357/ad3faf

Tracking the X-Ray Polarization of the Black Hole Transient Swift J1727.8-1613 during a State Transition

Adam Ingram, Niek Bollemeijer, Alexandra Veledina, Michal Dovčiak, Juri Poutanen, Elise Egron, Thomas D. Russell, Sergei A. Trushkin, Michela Negro, Ajay Ratheesh, Fiamma Capitanio, Riley Connors, Joseph Neilsen, Alexander Kraus, Maria Noemi Iacolina, Alberto Pellizzoni, Maura Pilia, Francesco Carotenuto, Giorgio Matt, Guglielmo MastroserioPhilip Kaaret, Stefano Bianchi, Javier A. García, Matteo Bachetti, Kinwah Wu, Enrico Costa, Melissa Ewing, Vadim Kravtsov, Henric Krawczynski, Vladislav Loktev, Andrea Marinucci, Lorenzo Marra, Romana Mikušincová, Edward Nathan, Maxime Parra, Pierre Olivier Petrucci, Simona Righini, Paolo Soffitta, James F. Steiner, Jiří Svoboda, Francesco Tombesi, Stefano Tugliani, Francesco Ursini, Yi Jung Yang, Silvia Zane, Wenda Zhang, Iván Agudo, Lucio A. Antonelli, 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, Fabio Muleri, 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, Allyn F. Tennant, Nicholas E. Thomas, Alessio Trois, Sergey S. Tsygankov, Roberto Turolla, Jacco Vink, Martin C. Weisskopf, Fei Xie

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Abstract

We report on an observational campaign on the bright black hole (BH) X-ray binary Swift J1727.8-1613 centered around five observations by the Imaging X-ray Polarimetry Explorer. These observations track for the first time the evolution of the X-ray polarization of a BH X-ray binary across a hard to soft state transition. The 2-8 keV polarization degree decreased from ∼4% to ∼3% across the five observations, but the polarization angle remained oriented in the north-south direction throughout. Based on observations with the Australia Telescope Compact Array, we find that the intrinsic 7.25 GHz radio polarization aligns with the X-ray polarization. Assuming the radio polarization aligns with the jet direction (which can be tested in the future with higher-spatial-resolution images of the jet), our results imply that the X-ray corona is extended in the disk plane, rather than along the jet axis, for the entire hard intermediate state. This in turn implies that the long (≳10 ms) soft lags that we measure with the Neutron star Interior Composition ExploreR are dominated by processes other than pure light-crossing delays. Moreover, we find that the evolution of the soft lag amplitude with spectral state does not follow the trend seen for other sources, implying that Swift J1727.8-1613 is a member of a hitherto undersampled subpopulation.

Original language	English (US)
Article number	76
Journal	Astrophysical Journal
Volume	968
Issue number	2
DOIs	https://doi.org/10.3847/1538-4357/ad3faf
State	Published - Jun 1 2024

All Science Journal Classification (ASJC) codes

Astronomy and Astrophysics
Space and Planetary Science

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10.3847/1538-4357/ad3faf

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Ingram, A., Bollemeijer, N., Veledina, A., Dovčiak, M., Poutanen, J., Egron, E., Russell, T. D., Trushkin, S. A., Negro, M., Ratheesh, A., Capitanio, F., Connors, R., Neilsen, J., Kraus, A., Iacolina, M. N., Pellizzoni, A., Pilia, M., Carotenuto, F., Matt, G., ... Xie, F. (2024). Tracking the X-Ray Polarization of the Black Hole Transient Swift J1727.8-1613 during a State Transition. Astrophysical Journal, 968(2), Article 76. https://doi.org/10.3847/1538-4357/ad3faf

@article{3eb5234632404e31a84270a9c9a735bf,

title = "Tracking the X-Ray Polarization of the Black Hole Transient Swift J1727.8-1613 during a State Transition",

abstract = "We report on an observational campaign on the bright black hole (BH) X-ray binary Swift J1727.8-1613 centered around five observations by the Imaging X-ray Polarimetry Explorer. These observations track for the first time the evolution of the X-ray polarization of a BH X-ray binary across a hard to soft state transition. The 2-8 keV polarization degree decreased from ∼4% to ∼3% across the five observations, but the polarization angle remained oriented in the north-south direction throughout. Based on observations with the Australia Telescope Compact Array, we find that the intrinsic 7.25 GHz radio polarization aligns with the X-ray polarization. Assuming the radio polarization aligns with the jet direction (which can be tested in the future with higher-spatial-resolution images of the jet), our results imply that the X-ray corona is extended in the disk plane, rather than along the jet axis, for the entire hard intermediate state. This in turn implies that the long (≳10 ms) soft lags that we measure with the Neutron star Interior Composition ExploreR are dominated by processes other than pure light-crossing delays. Moreover, we find that the evolution of the soft lag amplitude with spectral state does not follow the trend seen for other sources, implying that Swift J1727.8-1613 is a member of a hitherto undersampled subpopulation.",

author = "Adam Ingram and Niek Bollemeijer and Alexandra Veledina and Michal Dov{\v c}iak and Juri Poutanen and Elise Egron and Russell, {Thomas D.} and Trushkin, {Sergei A.} and Michela Negro and Ajay Ratheesh and Fiamma Capitanio and Riley Connors and Joseph Neilsen and Alexander Kraus and Iacolina, {Maria Noemi} and Alberto Pellizzoni and Maura Pilia and Francesco Carotenuto and Giorgio Matt and Guglielmo Mastroserio and Philip Kaaret and Stefano Bianchi and Garc{\'i}a, {Javier A.} and Matteo Bachetti and Kinwah Wu and Enrico Costa and Melissa Ewing and Vadim Kravtsov and Henric Krawczynski and Vladislav Loktev and Andrea Marinucci and Lorenzo Marra and Romana Miku{\v s}incov{\'a} and Edward Nathan and Maxime Parra and Petrucci, {Pierre Olivier} and Simona Righini and Paolo Soffitta and Steiner, {James F.} and Ji{\v r}{\'i} Svoboda and Francesco Tombesi and Stefano Tugliani and Francesco Ursini and Yang, {Yi Jung} and Silvia Zane and Wenda Zhang and Iv{\'a}n Agudo and Antonelli, {Lucio A.} 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 Fabio Muleri 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 Tennant, {Allyn F.} and Thomas, {Nicholas E.} and Alessio Trois and Tsygankov, {Sergey S.} and Roberto Turolla and Jacco Vink and Weisskopf, {Martin C.} and Fei Xie",

note = "Publisher Copyright: {\textcopyright} 2024. The Author(s). Published by the American Astronomical Society.",

year = "2024",

month = jun,

day = "1",

doi = "10.3847/1538-4357/ad3faf",

language = "English (US)",

volume = "968",

journal = "Astrophysical Journal",

issn = "0004-637X",

publisher = "American Astronomical Society",

number = "2",

}

Ingram, A, Bollemeijer, N, Veledina, A, Dovčiak, M, Poutanen, J, Egron, E, Russell, TD, Trushkin, SA, Negro, M, Ratheesh, A, Capitanio, F, Connors, R, Neilsen, J, Kraus, A, Iacolina, MN, Pellizzoni, A, Pilia, M, Carotenuto, F, Matt, G, Mastroserio, G, Kaaret, P, Bianchi, S, García, JA, Bachetti, M, Wu, K, Costa, E, Ewing, M, Kravtsov, V, Krawczynski, H, Loktev, V, Marinucci, A, Marra, L, Mikušincová, R, Nathan, E, Parra, M, Petrucci, PO, Righini, S, Soffitta, P, Steiner, JF, Svoboda, J, Tombesi, F, Tugliani, S, Ursini, F, Yang, YJ, Zane, S, Zhang, W, Agudo, I, Antonelli, LA, 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, Muleri, F, 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, Tennant, AF, Thomas, NE, Trois, A, Tsygankov, SS, Turolla, R, Vink, J, Weisskopf, MC & Xie, F 2024, 'Tracking the X-Ray Polarization of the Black Hole Transient Swift J1727.8-1613 during a State Transition', Astrophysical Journal, vol. 968, no. 2, 76. https://doi.org/10.3847/1538-4357/ad3faf

TY - JOUR

T1 - Tracking the X-Ray Polarization of the Black Hole Transient Swift J1727.8-1613 during a State Transition

AU - Ingram, Adam

AU - Bollemeijer, Niek

AU - Veledina, Alexandra

AU - Dovčiak, Michal

AU - Poutanen, Juri

AU - Egron, Elise

AU - Russell, Thomas D.

AU - Trushkin, Sergei A.

AU - Negro, Michela

AU - Ratheesh, Ajay

AU - Capitanio, Fiamma

AU - Connors, Riley

AU - Neilsen, Joseph

AU - Kraus, Alexander

AU - Iacolina, Maria Noemi

AU - Pellizzoni, Alberto

AU - Pilia, Maura

AU - Carotenuto, Francesco

AU - Matt, Giorgio

AU - Mastroserio, Guglielmo

AU - Kaaret, Philip

AU - Bianchi, Stefano

AU - García, Javier A.

AU - Bachetti, Matteo

AU - Wu, Kinwah

AU - Costa, Enrico

AU - Ewing, Melissa

AU - Kravtsov, Vadim

AU - Krawczynski, Henric

AU - Loktev, Vladislav

AU - Marinucci, Andrea

AU - Marra, Lorenzo

AU - Mikušincová, Romana

AU - Nathan, Edward

AU - Parra, Maxime

AU - Petrucci, Pierre Olivier

AU - Righini, Simona

AU - Soffitta, Paolo

AU - Steiner, James F.

AU - Svoboda, Jiří

AU - Tombesi, Francesco

AU - Tugliani, Stefano

AU - Ursini, Francesco

AU - Yang, Yi Jung

AU - Zane, Silvia

AU - Zhang, Wenda

AU - Agudo, Iván

AU - Antonelli, Lucio A.

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 - Muleri, Fabio

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 - Tennant, Allyn F.

AU - Thomas, Nicholas E.

AU - Trois, Alessio

AU - Tsygankov, Sergey S.

AU - Turolla, Roberto

AU - Vink, Jacco

AU - Weisskopf, Martin C.

AU - Xie, Fei

PY - 2024/6/1

Y1 - 2024/6/1

N2 - We report on an observational campaign on the bright black hole (BH) X-ray binary Swift J1727.8-1613 centered around five observations by the Imaging X-ray Polarimetry Explorer. These observations track for the first time the evolution of the X-ray polarization of a BH X-ray binary across a hard to soft state transition. The 2-8 keV polarization degree decreased from ∼4% to ∼3% across the five observations, but the polarization angle remained oriented in the north-south direction throughout. Based on observations with the Australia Telescope Compact Array, we find that the intrinsic 7.25 GHz radio polarization aligns with the X-ray polarization. Assuming the radio polarization aligns with the jet direction (which can be tested in the future with higher-spatial-resolution images of the jet), our results imply that the X-ray corona is extended in the disk plane, rather than along the jet axis, for the entire hard intermediate state. This in turn implies that the long (≳10 ms) soft lags that we measure with the Neutron star Interior Composition ExploreR are dominated by processes other than pure light-crossing delays. Moreover, we find that the evolution of the soft lag amplitude with spectral state does not follow the trend seen for other sources, implying that Swift J1727.8-1613 is a member of a hitherto undersampled subpopulation.

AB - We report on an observational campaign on the bright black hole (BH) X-ray binary Swift J1727.8-1613 centered around five observations by the Imaging X-ray Polarimetry Explorer. These observations track for the first time the evolution of the X-ray polarization of a BH X-ray binary across a hard to soft state transition. The 2-8 keV polarization degree decreased from ∼4% to ∼3% across the five observations, but the polarization angle remained oriented in the north-south direction throughout. Based on observations with the Australia Telescope Compact Array, we find that the intrinsic 7.25 GHz radio polarization aligns with the X-ray polarization. Assuming the radio polarization aligns with the jet direction (which can be tested in the future with higher-spatial-resolution images of the jet), our results imply that the X-ray corona is extended in the disk plane, rather than along the jet axis, for the entire hard intermediate state. This in turn implies that the long (≳10 ms) soft lags that we measure with the Neutron star Interior Composition ExploreR are dominated by processes other than pure light-crossing delays. Moreover, we find that the evolution of the soft lag amplitude with spectral state does not follow the trend seen for other sources, implying that Swift J1727.8-1613 is a member of a hitherto undersampled subpopulation.

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UR - http://www.scopus.com/inward/citedby.url?scp=85196085873&partnerID=8YFLogxK

U2 - 10.3847/1538-4357/ad3faf

DO - 10.3847/1538-4357/ad3faf

M3 - Article

AN - SCOPUS:85196085873

SN - 0004-637X

VL - 968

JO - Astrophysical Journal

JF - Astrophysical Journal

IS - 2

M1 - 76

ER -

Tracking the X-Ray Polarization of the Black Hole Transient Swift J1727.8-1613 during a State Transition

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