A massive helium star with a sufficiently strong magnetic field to form a magnetar

Tomer Shenar; Gregg A. Wade; Pablo Marchant; Stefano Bagnulo; Julia Bodensteiner; Dominic M. Bowman; Avishai Gilkis; Norbert Langer; André Nicolas-Chené; Lidia Oskinova; Timothy Van Reeth; Hugues Sana; Nicole St-Louis; Alexandre Soares de Oliveira; Helge Todt; Silvia Toonen

doi:10.1126/science.ade3293

A massive helium star with a sufficiently strong magnetic field to form a magnetar

Tomer Shenar, Gregg A. Wade, Pablo Marchant, Stefano Bagnulo, Julia Bodensteiner, Dominic M. Bowman, Avishai Gilkis, Norbert Langer, André Nicolas-Chené, Lidia Oskinova, Timothy Van Reeth, Hugues Sana, Nicole St-Louis, Alexandre Soares de Oliveira, Helge Todt, Silvia Toonen

School of Physics and Astronomy

Tel Aviv University

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

Abstract

Magnetars are highly magnetized neutron stars, the formation mechanism of which is unknown. Hot helium-rich stars with spectra dominated by emission lines are known as Wolf-Rayet stars. We observed the binary system HD 45166 using spectropolarimetry and reanalyzed its orbit using archival data. We found that the system contains a Wolf-Rayet star with a mass of 2 solar masses and a magnetic field of 43 kilogauss. Stellar evolution calculations indicate that this component will explode as a supernova, and that its magnetic field is strong enough for the supernova to leave a magnetar remnant. We propose that the magnetized Wolf-Rayet star formed by the merger of two lower-mass helium stars.

Original language	English
Pages (from-to)	761-765
Number of pages	5
Journal	Science
Volume	381
Issue number	6659
DOIs	https://doi.org/10.1126/science.ade3293
State	Published - Aug 2023

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Shenar, T., Wade, G. A., Marchant, P., Bagnulo, S., Bodensteiner, J., Bowman, D. M., Gilkis, A., Langer, N., Nicolas-Chené, A., Oskinova, L., Van Reeth, T., Sana, H., St-Louis, N., de Oliveira, A. S., Todt, H., & Toonen, S. (2023). A massive helium star with a sufficiently strong magnetic field to form a magnetar. Science, 381(6659), 761-765. https://doi.org/10.1126/science.ade3293

@article{b5a65085437f42b6ac08453ee0be1fd4,

title = "A massive helium star with a sufficiently strong magnetic field to form a magnetar",

abstract = "Magnetars are highly magnetized neutron stars, the formation mechanism of which is unknown. Hot helium-rich stars with spectra dominated by emission lines are known as Wolf-Rayet stars. We observed the binary system HD 45166 using spectropolarimetry and reanalyzed its orbit using archival data. We found that the system contains a Wolf-Rayet star with a mass of 2 solar masses and a magnetic field of 43 kilogauss. Stellar evolution calculations indicate that this component will explode as a supernova, and that its magnetic field is strong enough for the supernova to leave a magnetar remnant. We propose that the magnetized Wolf-Rayet star formed by the merger of two lower-mass helium stars.",

author = "Tomer Shenar and Wade, \{Gregg A.\} and Pablo Marchant and Stefano Bagnulo and Julia Bodensteiner and Bowman, \{Dominic M.\} and Avishai Gilkis and Norbert Langer and Andr{\'e} Nicolas-Chen{\'e} and Lidia Oskinova and \{Van Reeth\}, Timothy and Hugues Sana and Nicole St-Louis and \{de Oliveira\}, \{Alexandre Soares\} and Helge Todt and Silvia Toonen",

note = "Publisher Copyright: Copyright {\textcopyright} 2023 The Authors, some rights reserved.",

year = "2023",

month = aug,

doi = "10.1126/science.ade3293",

language = "الإنجليزيّة",

volume = "381",

pages = "761--765",

journal = "Science",

issn = "0036-8075",

publisher = "American Association for the Advancement of Science",

number = "6659",

}

Shenar, T, Wade, GA, Marchant, P, Bagnulo, S, Bodensteiner, J, Bowman, DM, Gilkis, A, Langer, N, Nicolas-Chené, A, Oskinova, L, Van Reeth, T, Sana, H, St-Louis, N, de Oliveira, AS, Todt, H & Toonen, S 2023, 'A massive helium star with a sufficiently strong magnetic field to form a magnetar', Science, vol. 381, no. 6659, pp. 761-765. https://doi.org/10.1126/science.ade3293

TY - JOUR

T1 - A massive helium star with a sufficiently strong magnetic field to form a magnetar

AU - Shenar, Tomer

AU - Wade, Gregg A.

AU - Marchant, Pablo

AU - Bagnulo, Stefano

AU - Bodensteiner, Julia

AU - Bowman, Dominic M.

AU - Gilkis, Avishai

AU - Langer, Norbert

AU - Nicolas-Chené, André

AU - Oskinova, Lidia

AU - Van Reeth, Timothy

AU - Sana, Hugues

AU - St-Louis, Nicole

AU - de Oliveira, Alexandre Soares

AU - Todt, Helge

AU - Toonen, Silvia

PY - 2023/8

Y1 - 2023/8

N2 - Magnetars are highly magnetized neutron stars, the formation mechanism of which is unknown. Hot helium-rich stars with spectra dominated by emission lines are known as Wolf-Rayet stars. We observed the binary system HD 45166 using spectropolarimetry and reanalyzed its orbit using archival data. We found that the system contains a Wolf-Rayet star with a mass of 2 solar masses and a magnetic field of 43 kilogauss. Stellar evolution calculations indicate that this component will explode as a supernova, and that its magnetic field is strong enough for the supernova to leave a magnetar remnant. We propose that the magnetized Wolf-Rayet star formed by the merger of two lower-mass helium stars.

AB - Magnetars are highly magnetized neutron stars, the formation mechanism of which is unknown. Hot helium-rich stars with spectra dominated by emission lines are known as Wolf-Rayet stars. We observed the binary system HD 45166 using spectropolarimetry and reanalyzed its orbit using archival data. We found that the system contains a Wolf-Rayet star with a mass of 2 solar masses and a magnetic field of 43 kilogauss. Stellar evolution calculations indicate that this component will explode as a supernova, and that its magnetic field is strong enough for the supernova to leave a magnetar remnant. We propose that the magnetized Wolf-Rayet star formed by the merger of two lower-mass helium stars.

UR - http://www.scopus.com/inward/record.url?scp=85168264578&partnerID=8YFLogxK

U2 - 10.1126/science.ade3293

DO - 10.1126/science.ade3293

M3 - مقالة

C2 - 37590342

SN - 0036-8075

VL - 381

SP - 761

EP - 765

JO - Science

JF - Science

IS - 6659

ER -

A massive helium star with a sufficiently strong magnetic field to form a magnetar

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