Detection of X-ray emission from a bright long-period radio transient

Ziteng Wang; Nanda Rea; Tong Bao; David L. Kaplan; Emil Lenc; Zorawar Wadiasingh; Jeremy Hare; Andrew Zic; Akash Anumarlapudi; Apurba Bera; Paz Beniamini; A. J. Cooper; Tracy E. Clarke; Adam T. Deller; J. R. Dawson; Marcin Glowacki; Natasha Hurley-Walker; S. J. McSweeney; Emil J. Polisensky; Wendy M. Peters; George Younes; Keith W. Bannister; Manisha Caleb; Kristen C. Dage; Clancy W. James; Mansi M. Kasliwal; Viraj Karambelkar; Marcus E. Lower; Kaya Mori; Stella Koch Ocker; Miguel Pérez-Torres; Hao Qiu; Kovi Rose; Ryan M. Shannon; Rhianna Taub; Fayin Wang; Yuanming Wang; Zhenyin Zhao; N. D.Ramesh Bhat; Dougal Dobie; Laura N. Driessen; Tara Murphy; Akhil Jaini; Xinping Deng; Joscha N. Jahns-Schindler; Y. W.Joshua Lee; Joshua Pritchard; John Tuthill; Nithyanandan Thyagarajan

doi:10.1038/s41586-025-09077-w

Detection of X-ray emission from a bright long-period radio transient

Ziteng Wang, Nanda Rea, Tong Bao, David L. Kaplan, Emil Lenc, Zorawar Wadiasingh, Jeremy Hare, Andrew Zic, Akash Anumarlapudi, Apurba Bera, Paz Beniamini, A. J. Cooper, Tracy E. Clarke, Adam T. Deller, J. R. Dawson, Marcin Glowacki, Natasha Hurley-Walker, S. J. McSweeney, Emil J. Polisensky, Wendy M. PetersGeorge Younes, Keith W. Bannister, Manisha Caleb, Kristen C. Dage, Clancy W. James, Mansi M. Kasliwal, Viraj Karambelkar, Marcus E. Lower, Kaya Mori, Stella Koch Ocker, Miguel Pérez-Torres, Hao Qiu, Kovi Rose, Ryan M. Shannon, Rhianna Taub, Fayin Wang, Yuanming Wang, Zhenyin Zhao, N. D.Ramesh Bhat, Dougal Dobie, Laura N. Driessen, Tara Murphy, Akhil Jaini, Xinping Deng, Joscha N. Jahns-Schindler, Y. W.Joshua Lee, Joshua Pritchard, John Tuthill, Nithyanandan Thyagarajan

Physics

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

Abstract

Recently, a class of long-period radio transients (LPTs) has been discovered, exhibiting emission thousands of times longer than radio pulsars 1-5. These findings, enabled by advances in wide-field radio surveys, challenge existing models of rotationally powered pulsars. Proposed models include highly magnetized neutron stars 6, white-dwarf pulsars 7 and white-dwarf binary systems with low-mass companions 8. Although some models predict X-ray emission 6,9, no LPTs have been detected in X-rays despite extensive searches 1-5,10. Here we report the discovery of an extremely bright LPT (10-20 Jy in radio), ASKAP J1832-0911, which has coincident radio and X-ray emission, both with a 44.2-minute period. Its correlated and highly variable X-ray and radio luminosities, combined with other observational properties, are unlike any known Galactic object. The source could be an old magnetar or an ultra-magnetized white dwarf; however, both interpretations present theoretical challenges. This X-ray detection from an LPT reveals that these objects are more energetic than previously thought and establishes a class of hour-scale periodic X-ray transients with a luminosity of about 10 33 erg s -1 linked to exceptionally bright coherent radio emission.

Original language	English
Pages (from-to)	583-586
Number of pages	4
Journal	Nature
Volume	642
Issue number	8068
DOIs	https://doi.org/10.1038/s41586-025-09077-w
State	Published - 28 May 2025

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Wang, Z., Rea, N., Bao, T., Kaplan, D. L., Lenc, E., Wadiasingh, Z., Hare, J., Zic, A., Anumarlapudi, A., Bera, A., Beniamini, P., Cooper, A. J., Clarke, T. E., Deller, A. T., Dawson, J. R., Glowacki, M., Hurley-Walker, N., McSweeney, S. J., Polisensky, E. J., ... Thyagarajan, N. (2025). Detection of X-ray emission from a bright long-period radio transient. Nature, 642(8068), 583-586. https://doi.org/10.1038/s41586-025-09077-w

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title = "Detection of X-ray emission from a bright long-period radio transient",

abstract = "Recently, a class of long-period radio transients (LPTs) has been discovered, exhibiting emission thousands of times longer than radio pulsars 1-5. These findings, enabled by advances in wide-field radio surveys, challenge existing models of rotationally powered pulsars. Proposed models include highly magnetized neutron stars 6, white-dwarf pulsars 7 and white-dwarf binary systems with low-mass companions 8. Although some models predict X-ray emission 6,9, no LPTs have been detected in X-rays despite extensive searches 1-5,10. Here we report the discovery of an extremely bright LPT (10-20 Jy in radio), ASKAP J1832-0911, which has coincident radio and X-ray emission, both with a 44.2-minute period. Its correlated and highly variable X-ray and radio luminosities, combined with other observational properties, are unlike any known Galactic object. The source could be an old magnetar or an ultra-magnetized white dwarf; however, both interpretations present theoretical challenges. This X-ray detection from an LPT reveals that these objects are more energetic than previously thought and establishes a class of hour-scale periodic X-ray transients with a luminosity of about 10 33 erg s -1 linked to exceptionally bright coherent radio emission. ",

author = "Ziteng Wang and Nanda Rea and Tong Bao and Kaplan, {David L.} and Emil Lenc and Zorawar Wadiasingh and Jeremy Hare and Andrew Zic and Akash Anumarlapudi and Apurba Bera and Paz Beniamini and Cooper, {A. J.} and Clarke, {Tracy E.} and Deller, {Adam T.} and Dawson, {J. R.} and Marcin Glowacki and Natasha Hurley-Walker and McSweeney, {S. J.} and Polisensky, {Emil J.} and Peters, {Wendy M.} and George Younes and Bannister, {Keith W.} and Manisha Caleb and Dage, {Kristen C.} and James, {Clancy W.} and Kasliwal, {Mansi M.} and Viraj Karambelkar and Lower, {Marcus E.} and Kaya Mori and Ocker, {Stella Koch} and Miguel P{\'e}rez-Torres and Hao Qiu and Kovi Rose and Shannon, {Ryan M.} and Rhianna Taub and Fayin Wang and Yuanming Wang and Zhenyin Zhao and Bhat, {N. D.Ramesh} and Dougal Dobie and Driessen, {Laura N.} and Tara Murphy and Akhil Jaini and Xinping Deng and Jahns-Schindler, {Joscha N.} and Lee, {Y. W.Joshua} and Joshua Pritchard and John Tuthill and Nithyanandan Thyagarajan",

note = "{\textcopyright} 2025. The Author(s), under exclusive licence to Springer Nature Limited.",

year = "2025",

month = may,

day = "28",

doi = "10.1038/s41586-025-09077-w",

language = "אנגלית",

volume = "642",

pages = "583--586",

journal = "Nature",

issn = "0028-0836",

publisher = "Nature Research",

number = "8068",

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Wang, Z, Rea, N, Bao, T, Kaplan, DL, Lenc, E, Wadiasingh, Z, Hare, J, Zic, A, Anumarlapudi, A, Bera, A, Beniamini, P, Cooper, AJ, Clarke, TE, Deller, AT, Dawson, JR, Glowacki, M, Hurley-Walker, N, McSweeney, SJ, Polisensky, EJ, Peters, WM, Younes, G, Bannister, KW, Caleb, M, Dage, KC, James, CW, Kasliwal, MM, Karambelkar, V, Lower, ME, Mori, K, Ocker, SK, Pérez-Torres, M, Qiu, H, Rose, K, Shannon, RM, Taub, R, Wang, F, Wang, Y, Zhao, Z, Bhat, NDR, Dobie, D, Driessen, LN, Murphy, T, Jaini, A, Deng, X, Jahns-Schindler, JN, Lee, YWJ, Pritchard, J, Tuthill, J & Thyagarajan, N 2025, 'Detection of X-ray emission from a bright long-period radio transient', Nature, vol. 642, no. 8068, pp. 583-586. https://doi.org/10.1038/s41586-025-09077-w

TY - JOUR

T1 - Detection of X-ray emission from a bright long-period radio transient

AU - Wang, Ziteng

AU - Rea, Nanda

AU - Bao, Tong

AU - Kaplan, David L.

AU - Lenc, Emil

AU - Wadiasingh, Zorawar

AU - Hare, Jeremy

AU - Zic, Andrew

AU - Anumarlapudi, Akash

AU - Bera, Apurba

AU - Beniamini, Paz

AU - Cooper, A. J.

AU - Clarke, Tracy E.

AU - Deller, Adam T.

AU - Dawson, J. R.

AU - Glowacki, Marcin

AU - Hurley-Walker, Natasha

AU - McSweeney, S. J.

AU - Polisensky, Emil J.

AU - Peters, Wendy M.

AU - Younes, George

AU - Bannister, Keith W.

AU - Caleb, Manisha

AU - Dage, Kristen C.

AU - James, Clancy W.

AU - Kasliwal, Mansi M.

AU - Karambelkar, Viraj

AU - Lower, Marcus E.

AU - Mori, Kaya

AU - Ocker, Stella Koch

AU - Pérez-Torres, Miguel

AU - Qiu, Hao

AU - Rose, Kovi

AU - Shannon, Ryan M.

AU - Taub, Rhianna

AU - Wang, Fayin

AU - Wang, Yuanming

AU - Zhao, Zhenyin

AU - Bhat, N. D.Ramesh

AU - Dobie, Dougal

AU - Driessen, Laura N.

AU - Murphy, Tara

AU - Jaini, Akhil

AU - Deng, Xinping

AU - Jahns-Schindler, Joscha N.

AU - Lee, Y. W.Joshua

AU - Pritchard, Joshua

AU - Tuthill, John

AU - Thyagarajan, Nithyanandan

PY - 2025/5/28

Y1 - 2025/5/28

N2 - Recently, a class of long-period radio transients (LPTs) has been discovered, exhibiting emission thousands of times longer than radio pulsars 1-5. These findings, enabled by advances in wide-field radio surveys, challenge existing models of rotationally powered pulsars. Proposed models include highly magnetized neutron stars 6, white-dwarf pulsars 7 and white-dwarf binary systems with low-mass companions 8. Although some models predict X-ray emission 6,9, no LPTs have been detected in X-rays despite extensive searches 1-5,10. Here we report the discovery of an extremely bright LPT (10-20 Jy in radio), ASKAP J1832-0911, which has coincident radio and X-ray emission, both with a 44.2-minute period. Its correlated and highly variable X-ray and radio luminosities, combined with other observational properties, are unlike any known Galactic object. The source could be an old magnetar or an ultra-magnetized white dwarf; however, both interpretations present theoretical challenges. This X-ray detection from an LPT reveals that these objects are more energetic than previously thought and establishes a class of hour-scale periodic X-ray transients with a luminosity of about 10 33 erg s -1 linked to exceptionally bright coherent radio emission.

AB - Recently, a class of long-period radio transients (LPTs) has been discovered, exhibiting emission thousands of times longer than radio pulsars 1-5. These findings, enabled by advances in wide-field radio surveys, challenge existing models of rotationally powered pulsars. Proposed models include highly magnetized neutron stars 6, white-dwarf pulsars 7 and white-dwarf binary systems with low-mass companions 8. Although some models predict X-ray emission 6,9, no LPTs have been detected in X-rays despite extensive searches 1-5,10. Here we report the discovery of an extremely bright LPT (10-20 Jy in radio), ASKAP J1832-0911, which has coincident radio and X-ray emission, both with a 44.2-minute period. Its correlated and highly variable X-ray and radio luminosities, combined with other observational properties, are unlike any known Galactic object. The source could be an old magnetar or an ultra-magnetized white dwarf; however, both interpretations present theoretical challenges. This X-ray detection from an LPT reveals that these objects are more energetic than previously thought and establishes a class of hour-scale periodic X-ray transients with a luminosity of about 10 33 erg s -1 linked to exceptionally bright coherent radio emission.

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JF - Nature

IS - 8068

ER -

Detection of X-ray emission from a bright long-period radio transient

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