A polarimetrically oriented X-ray stare at the accreting pulsar EXO 2030+375

Christian Malacaria; Jeremy Heyl; Victor Doroshenko; Sergey S. Tsygankov; Juri Poutanen; Sofia V. Forsblom; Fiamma Capitanio; Alessandro Di Marco; Yujia Du; Lorenzo Ducci; Fabio La Monaca; Alexander A. Lutovinov; Herman L. Marshall; Ilya A. Mereminskiy; Sergey V. Molkov; Alexander A. Mushtukov; Mason Ng; Pierre Olivier Petrucci; Andrea Santangelo; Andrey E. Shtykovsky; Valery F. Suleimanov; Iván Agudo; Lucio A. Antonelli; Matteo Bachetti; Luca Baldini; Wayne H. Baumgartner; Ronaldo Bellazzini; Stefano Bianchi; Stephen D. Bongiorno; Raffaella Bonino; Alessandro Brez; Niccolo Bucciantini; Simone Castellano; Elisabetta Cavazzuti; Chien Ting Chen; Stefano Ciprini; Enrico Costa; Alessandra De Rosa; Ettore Del Monte; Laura Di Gesu; Niccolo Di Lalla; Immacolata Donnarumma; Michal Dovčiak; Steven R. Ehlert; Teruaki Enoto; Yuri Evangelista; Sergio Fabiani; Riccardo Ferrazzoli; Javier A. Garcia; Shuichi Gunji; Kiyoshi Hayashida; Wataru Iwakiri; Svetlana G. Jorstad; Philip Kaaret; Vladimir Karas; Fabian Kislat; Takao Kitaguchi; Jeffery J. Kolodziejczak; Henric Krawczynski; Luca Latronico; Ioannis Liodakis; Simone Maldera; Alberto Manfreda; Frédéric Marin; Andrea Marinucci; Alan P. Marscher; Francesco Massaro; Giorgio Matt; Ikuyuki Mitsuishi; Tsunefumi Mizuno; Fabio Muleri; Michela Negro; Chi Yung Ng; Stephen L. Oa'dell; Nicola Omodei; Chiara Oppedisano; Alessandro Papitto; George G. Pavlov; Abel L. Peirson; Matteo Perri; Melissa Pesce-Rollins; Maura Pilia; Andrea Possenti; Simonetta Puccetti; Brian D. Ramsey; John Rankin; Ajay Ratheesh; Oliver J. Roberts; Roger W. Romani; Carmelo Sgrò; Patrick Slane; Paolo Soffitta; Gloria Spandre; Douglas A. Swartz; Toru Tamagawa; Fabrizio Tavecchio; Roberto Taverna; Yuzuru Tawara; Allyn F. Tennant; Nicholas E. Thomas; Francesco Tombesi; Alessio Trois; Roberto Turolla; Jacco Vink; Martin C. Weisskopf; Kinwah Wu; Fei Xie; Silvia Zane

doi:10.1051/0004-6361/202346581

A polarimetrically oriented X-ray stare at the accreting pulsar EXO 2030+375

Christian Malacaria
, Jeremy Heyl
, Victor Doroshenko
, Sergey S. Tsygankov
, Juri Poutanen
, Sofia V. Forsblom
, Fiamma Capitanio
, Alessandro Di Marco
, Yujia Du
, Lorenzo Ducci
, Fabio La Monaca
, Alexander A. Lutovinov
, Herman L. Marshall
, Ilya A. Mereminskiy
, Sergey V. Molkov
, Alexander A. Mushtukov
, Mason Ng
, Pierre Olivier Petrucci
, Andrea Santangelo
, Andrey E. Shtykovsky

Valery F. Suleimanov, Iván Agudo, Lucio A. Antonelli, Matteo Bachetti, Luca Baldini, Wayne H. Baumgartner, Ronaldo Bellazzini, Stefano Bianchi, Stephen D. Bongiorno, Raffaella Bonino, Alessandro Brez, Niccolo Bucciantini, Simone Castellano, Elisabetta Cavazzuti, Chien Ting Chen, Stefano Ciprini, Enrico Costa, Alessandra De Rosa, Ettore Del Monte, Laura Di Gesu, Niccolo Di Lalla, Immacolata Donnarumma, Michal Dovčiak, Steven R. Ehlert, Teruaki Enoto, Yuri Evangelista, Sergio Fabiani, Riccardo Ferrazzoli, Javier A. Garcia, Shuichi Gunji, Kiyoshi Hayashida, Wataru Iwakiri, Svetlana G. Jorstad, Philip Kaaret, Vladimir Karas, Fabian Kislat, Takao Kitaguchi, Jeffery J. Kolodziejczak, Henric Krawczynski, Luca Latronico, Ioannis Liodakis, Simone Maldera, Alberto Manfreda, Frédéric Marin, Andrea Marinucci, Alan P. Marscher, Francesco Massaro, Giorgio Matt, Ikuyuki Mitsuishi, Tsunefumi Mizuno, Fabio Muleri, Michela Negro, Chi Yung Ng, Stephen L. Oa'dell, Nicola Omodei, Chiara Oppedisano, Alessandro Papitto, George G. Pavlov, Abel L. Peirson, Matteo Perri, Melissa Pesce-Rollins, Maura Pilia, Andrea Possenti, Simonetta Puccetti, Brian D. Ramsey, John Rankin, Ajay Ratheesh, Oliver J. Roberts, Roger W. Romani, Carmelo Sgrò, Patrick Slane, Paolo Soffitta, Gloria Spandre, Douglas A. Swartz, Toru Tamagawa, Fabrizio Tavecchio, Roberto Taverna, Yuzuru Tawara, Allyn F. Tennant, Nicholas E. Thomas, Francesco Tombesi, Alessio Trois, Roberto Turolla, Jacco Vink, Martin C. Weisskopf, Kinwah Wu, Fei Xie, Silvia Zane

Research output: Contribution to journal › Article › peer-review

19 Scopus citations

Abstract

Accreting X-ray pulsars (XRPs) are presumed to be ideal targets for polarization measurements, as their high magnetic field strength is expected to polarize the emission up to a polarization degree of 80%. However, such expectations are being challenged by recent observations of XRPs with the Imaging X-ray Polarimeter Explorer (IXPE). Here, we report on the results of yet another XRP, namely, EXO 2030+375, observed with IXPE and contemporarily monitored with Insight-HXMT and SRG/ART-XC. In line with recent results obtained with IXPE for similar sources, an analysis of the EXO 2030+375 data returns a low polarization degree of 0%- 3% in the phase-averaged study and a variation in the range of 2%- 7% in the phase-resolved study. Using the rotating vector model, we constrained the geometry of the system and obtained a value of 60 for the magnetic obliquity. When considering the estimated pulsar inclination of 130, this also indicates that the magnetic axis swings close to the observera's line of sight. Our joint polarimetric, spectral, and timing analyses hint toward a complex accreting geometry, whereby magnetic multipoles with an asymmetric topology and gravitational light bending significantly affect the behavior of the observed source.

Original language	English (US)
Article number	A29
Journal	Astronomy and Astrophysics
Volume	675
DOIs	https://doi.org/10.1051/0004-6361/202346581
State	Published - Jul 1 2023

All Science Journal Classification (ASJC) codes

Astronomy and Astrophysics
Space and Planetary Science

Access to Document

10.1051/0004-6361/202346581

Cite this

Malacaria, C., Heyl, J., Doroshenko, V., Tsygankov, S. S., Poutanen, J., Forsblom, S. V., Capitanio, F., Di Marco, A., Du, Y., Ducci, L., La Monaca, F., Lutovinov, A. A., Marshall, H. L., Mereminskiy, I. A., Molkov, S. V., Mushtukov, A. A., Ng, M., Petrucci, P. O., Santangelo, A., ... Zane, S. (2023). A polarimetrically oriented X-ray stare at the accreting pulsar EXO 2030+375. Astronomy and Astrophysics, 675, Article A29. https://doi.org/10.1051/0004-6361/202346581

@article{0691884f55d14285b5d8487f04a47cdb,

title = "A polarimetrically oriented X-ray stare at the accreting pulsar EXO 2030+375",

abstract = "Accreting X-ray pulsars (XRPs) are presumed to be ideal targets for polarization measurements, as their high magnetic field strength is expected to polarize the emission up to a polarization degree of 80\%. However, such expectations are being challenged by recent observations of XRPs with the Imaging X-ray Polarimeter Explorer (IXPE). Here, we report on the results of yet another XRP, namely, EXO 2030+375, observed with IXPE and contemporarily monitored with Insight-HXMT and SRG/ART-XC. In line with recent results obtained with IXPE for similar sources, an analysis of the EXO 2030+375 data returns a low polarization degree of 0\%- 3\% in the phase-averaged study and a variation in the range of 2\%- 7\% in the phase-resolved study. Using the rotating vector model, we constrained the geometry of the system and obtained a value of 60 for the magnetic obliquity. When considering the estimated pulsar inclination of 130, this also indicates that the magnetic axis swings close to the observera's line of sight. Our joint polarimetric, spectral, and timing analyses hint toward a complex accreting geometry, whereby magnetic multipoles with an asymmetric topology and gravitational light bending significantly affect the behavior of the observed source.",

author = "Christian Malacaria and Jeremy Heyl and Victor Doroshenko and Tsygankov, \{Sergey S.\} and Juri Poutanen and Forsblom, \{Sofia V.\} and Fiamma Capitanio and \{Di Marco\}, Alessandro and Yujia Du and Lorenzo Ducci and \{La Monaca\}, Fabio and Lutovinov, \{Alexander A.\} and Marshall, \{Herman L.\} and Mereminskiy, \{Ilya A.\} and Molkov, \{Sergey V.\} and Mushtukov, \{Alexander A.\} and Mason Ng and Petrucci, \{Pierre Olivier\} and Andrea Santangelo and Shtykovsky, \{Andrey E.\} and Suleimanov, \{Valery F.\} and Iv{\'a}n Agudo and Antonelli, \{Lucio A.\} and Matteo Bachetti and Luca Baldini and Baumgartner, \{Wayne H.\} and Ronaldo Bellazzini and Stefano Bianchi and Bongiorno, \{Stephen D.\} and Raffaella Bonino and Alessandro Brez and Niccolo Bucciantini and Simone Castellano and Elisabetta Cavazzuti and Chen, \{Chien Ting\} and Stefano Ciprini and Enrico Costa and \{De Rosa\}, Alessandra and \{Del Monte\}, Ettore and \{Di Gesu\}, Laura and \{Di Lalla\}, Niccolo and Immacolata Donnarumma and Michal Dov{\v c}iak and Ehlert, \{Steven R.\} and Teruaki Enoto and Yuri Evangelista and Sergio Fabiani and Riccardo Ferrazzoli and Garcia, \{Javier A.\} and Shuichi Gunji and Kiyoshi Hayashida and Wataru Iwakiri and Jorstad, \{Svetlana G.\} and Philip Kaaret and Vladimir Karas and Fabian Kislat and Takao Kitaguchi and Kolodziejczak, \{Jeffery J.\} and Henric Krawczynski and Luca Latronico and Ioannis Liodakis and Simone Maldera and Alberto Manfreda and Fr{\'e}d{\'e}ric Marin and Andrea Marinucci and Marscher, \{Alan P.\} and Francesco Massaro and Giorgio Matt and Ikuyuki Mitsuishi and Tsunefumi Mizuno and Fabio Muleri and Michela Negro and Ng, \{Chi Yung\} and Oa'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 Maura Pilia and Andrea Possenti and Simonetta Puccetti and Ramsey, \{Brian D.\} and John Rankin and Ajay Ratheesh and Roberts, \{Oliver J.\} and Romani, \{Roger W.\} and Carmelo Sgr{\`o} and Patrick Slane and Paolo Soffitta 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 Francesco Tombesi and Alessio Trois and Roberto Turolla and Jacco Vink and Weisskopf, \{Martin C.\} and Kinwah Wu and Fei Xie and Silvia Zane",

note = "Publisher Copyright: {\textcopyright} 2023 Authors.",

year = "2023",

month = jul,

day = "1",

doi = "10.1051/0004-6361/202346581",

language = "English (US)",

volume = "675",

journal = "Astronomy and Astrophysics",

issn = "0004-6361",

publisher = "EDP Sciences",

}

Malacaria, C, Heyl, J, Doroshenko, V, Tsygankov, SS, Poutanen, J, Forsblom, SV, Capitanio, F, Di Marco, A, Du, Y, Ducci, L, La Monaca, F, Lutovinov, AA, Marshall, HL, Mereminskiy, IA, Molkov, SV, Mushtukov, AA, Ng, M, Petrucci, PO, Santangelo, A, Shtykovsky, AE, Suleimanov, VF, Agudo, I, Antonelli, LA, Bachetti, M, Baldini, L, Baumgartner, WH, Bellazzini, R, Bianchi, S, Bongiorno, SD, Bonino, R, Brez, A, Bucciantini, N, Castellano, S, Cavazzuti, E, Chen, CT, Ciprini, S, Costa, E, De Rosa, A, Del Monte, E, Di Gesu, L, Di Lalla, N, Donnarumma, I, Dovčiak, M, Ehlert, SR, Enoto, T, Evangelista, Y, Fabiani, S, Ferrazzoli, R, Garcia, JA, Gunji, S, Hayashida, K, Iwakiri, W, Jorstad, SG, Kaaret, P, Karas, V, Kislat, F, Kitaguchi, T, Kolodziejczak, JJ, Krawczynski, H, Latronico, L, Liodakis, I, Maldera, S, Manfreda, A, Marin, F, Marinucci, A, Marscher, AP, Massaro, F, Matt, G, Mitsuishi, I, Mizuno, T, Muleri, F, Negro, M, Ng, CY, Oa'dell, SL, Omodei, N, Oppedisano, C, Papitto, A, Pavlov, GG, Peirson, AL, Perri, M, Pesce-Rollins, M, Pilia, M, Possenti, A, Puccetti, S, Ramsey, BD, Rankin, J, Ratheesh, A, Roberts, OJ, Romani, RW, Sgrò, C, Slane, P, Soffitta, P, Spandre, G, Swartz, DA, Tamagawa, T, Tavecchio, F, Taverna, R, Tawara, Y, Tennant, AF, Thomas, NE, Tombesi, F, Trois, A, Turolla, R, Vink, J, Weisskopf, MC, Wu, K, Xie, F & Zane, S 2023, 'A polarimetrically oriented X-ray stare at the accreting pulsar EXO 2030+375', Astronomy and Astrophysics, vol. 675, A29. https://doi.org/10.1051/0004-6361/202346581

TY - JOUR

T1 - A polarimetrically oriented X-ray stare at the accreting pulsar EXO 2030+375

AU - Malacaria, Christian

AU - Heyl, Jeremy

AU - Doroshenko, Victor

AU - Tsygankov, Sergey S.

AU - Poutanen, Juri

AU - Forsblom, Sofia V.

AU - Capitanio, Fiamma

AU - Di Marco, Alessandro

AU - Du, Yujia

AU - Ducci, Lorenzo

AU - La Monaca, Fabio

AU - Lutovinov, Alexander A.

AU - Marshall, Herman L.

AU - Mereminskiy, Ilya A.

AU - Molkov, Sergey V.

AU - Mushtukov, Alexander A.

AU - Ng, Mason

AU - Petrucci, Pierre Olivier

AU - Santangelo, Andrea

AU - Shtykovsky, Andrey E.

AU - Suleimanov, Valery F.

AU - Agudo, Iván

AU - Antonelli, Lucio A.

AU - Bachetti, Matteo

AU - Baldini, Luca

AU - Baumgartner, Wayne H.

AU - Bellazzini, Ronaldo

AU - Bianchi, Stefano

AU - Bongiorno, Stephen D.

AU - Bonino, Raffaella

AU - Brez, Alessandro

AU - Bucciantini, Niccolo

AU - Castellano, Simone

AU - Cavazzuti, Elisabetta

AU - Chen, Chien Ting

AU - Ciprini, Stefano

AU - Costa, Enrico

AU - De Rosa, Alessandra

AU - Del Monte, Ettore

AU - Di Gesu, Laura

AU - Di Lalla, Niccolo

AU - Donnarumma, Immacolata

AU - Dovčiak, Michal

AU - Ehlert, Steven R.

AU - Enoto, Teruaki

AU - Evangelista, Yuri

AU - Fabiani, Sergio

AU - Ferrazzoli, Riccardo

AU - Garcia, Javier A.

AU - Gunji, Shuichi

AU - Hayashida, Kiyoshi

AU - Iwakiri, Wataru

AU - Jorstad, Svetlana G.

AU - Kaaret, Philip

AU - Karas, Vladimir

AU - Kislat, Fabian

AU - Kitaguchi, Takao

AU - Kolodziejczak, Jeffery J.

AU - Krawczynski, Henric

AU - Latronico, Luca

AU - Liodakis, Ioannis

AU - Maldera, Simone

AU - Manfreda, Alberto

AU - Marin, Frédéric

AU - Marinucci, Andrea

AU - Marscher, Alan P.

AU - Massaro, Francesco

AU - Matt, Giorgio

AU - Mitsuishi, Ikuyuki

AU - Mizuno, Tsunefumi

AU - Muleri, Fabio

AU - Negro, Michela

AU - Ng, Chi Yung

AU - Oa'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 - Pilia, Maura

AU - Possenti, Andrea

AU - Puccetti, Simonetta

AU - Ramsey, Brian D.

AU - Rankin, John

AU - Ratheesh, Ajay

AU - Roberts, Oliver J.

AU - Romani, Roger W.

AU - Sgrò, Carmelo

AU - Slane, Patrick

AU - Soffitta, Paolo

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 - Tombesi, Francesco

AU - Trois, Alessio

AU - Turolla, Roberto

AU - Vink, Jacco

AU - Weisskopf, Martin C.

AU - Wu, Kinwah

AU - Xie, Fei

AU - Zane, Silvia

PY - 2023/7/1

Y1 - 2023/7/1

N2 - Accreting X-ray pulsars (XRPs) are presumed to be ideal targets for polarization measurements, as their high magnetic field strength is expected to polarize the emission up to a polarization degree of 80%. However, such expectations are being challenged by recent observations of XRPs with the Imaging X-ray Polarimeter Explorer (IXPE). Here, we report on the results of yet another XRP, namely, EXO 2030+375, observed with IXPE and contemporarily monitored with Insight-HXMT and SRG/ART-XC. In line with recent results obtained with IXPE for similar sources, an analysis of the EXO 2030+375 data returns a low polarization degree of 0%- 3% in the phase-averaged study and a variation in the range of 2%- 7% in the phase-resolved study. Using the rotating vector model, we constrained the geometry of the system and obtained a value of 60 for the magnetic obliquity. When considering the estimated pulsar inclination of 130, this also indicates that the magnetic axis swings close to the observera's line of sight. Our joint polarimetric, spectral, and timing analyses hint toward a complex accreting geometry, whereby magnetic multipoles with an asymmetric topology and gravitational light bending significantly affect the behavior of the observed source.

AB - Accreting X-ray pulsars (XRPs) are presumed to be ideal targets for polarization measurements, as their high magnetic field strength is expected to polarize the emission up to a polarization degree of 80%. However, such expectations are being challenged by recent observations of XRPs with the Imaging X-ray Polarimeter Explorer (IXPE). Here, we report on the results of yet another XRP, namely, EXO 2030+375, observed with IXPE and contemporarily monitored with Insight-HXMT and SRG/ART-XC. In line with recent results obtained with IXPE for similar sources, an analysis of the EXO 2030+375 data returns a low polarization degree of 0%- 3% in the phase-averaged study and a variation in the range of 2%- 7% in the phase-resolved study. Using the rotating vector model, we constrained the geometry of the system and obtained a value of 60 for the magnetic obliquity. When considering the estimated pulsar inclination of 130, this also indicates that the magnetic axis swings close to the observera's line of sight. Our joint polarimetric, spectral, and timing analyses hint toward a complex accreting geometry, whereby magnetic multipoles with an asymmetric topology and gravitational light bending significantly affect the behavior of the observed source.

UR - https://www.scopus.com/pages/publications/85164539143

UR - https://www.scopus.com/pages/publications/85164539143#tab=citedBy

U2 - 10.1051/0004-6361/202346581

DO - 10.1051/0004-6361/202346581

M3 - Article

AN - SCOPUS:85164539143

SN - 0004-6361

VL - 675

JO - Astronomy and Astrophysics

JF - Astronomy and Astrophysics

M1 - A29

ER -

A polarimetrically oriented X-ray stare at the accreting pulsar EXO 2030+375

Abstract

All Science Journal Classification (ASJC) codes

Access to Document

Other files and links

Fingerprint

Cite this