A coherent radio burst from an X-ray neutron star in the Carina Nebula Article Swipe
Kaustubh Rajwade
,
Jun Tian
,
George Younes
,
Bettina Posselt
,
B. W. Stappers
,
Zorawar Wadiasingh
,
E D Barr
,
M C Bezuidenhout
,
Manisha Caleb
,
F. Jankowski
,
M. Kramer
,
Inés Pastor-Marazuela
,
Mayuresh Surnis
·
YOU?
·
· 2025
· Open Access
·
· DOI: https://doi.org/10.48550/arxiv.2505.02808
YOU?
·
· 2025
· Open Access
·
· DOI: https://doi.org/10.48550/arxiv.2505.02808
The neutron star zoo comprises several sub-populations that range from energetic magnetars and thermally emitting X-ray neutron stars to radio-emitting pulsars. Despite studies over the last five decades, it has been challenging to obtain a clear physical link between the various populations of neutron stars, vital to constrain their formation and evolutionary pathways. Here we report the detection of a burst of coherent radio emission from a known radio-quiet, thermally emitting neutron star 2XMM J104608.7$-$594306in the Carina Nebula. The burst has a distinctive sharp rise followed by a decay made up of multiple components, which is unlike anything seen from other radio-emitting neutron stars. It suggests an episodic event from the neutron star surface, akin to transient radio emission seen from magnetars. The radio burst confirms that the X-ray source is a neutron star and suggests a new link between these apparently radio-quiet X-ray emitting sources and other transient or persistent radio-emitting neutron stars. It also suggests that a common physical mechanism for emission might operate over a range of magnetic field strengths and neutron star ages. We propose that 2XMM J104608.7$-$594306 straddles the boundary between young, energetic neutron stars and their evolved radio-emitting cousins and may bridge these two populations. The detection of such a radio burst also shows that other radio-quiet neutron stars may also emit such sporadic radio emission that has been missed by previous radio surveys and highlights the need for regular monitoring of this unique sub-population of neutron stars.
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Metadata
- Type
- preprint
- Language
- en
- Landing Page
- http://arxiv.org/abs/2505.02808
- https://arxiv.org/pdf/2505.02808
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All OpenAlex metadata
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https://openalex.org/W4415032523Canonical identifier for this work in OpenAlex
- DOI
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https://doi.org/10.48550/arxiv.2505.02808Digital Object Identifier
- Title
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A coherent radio burst from an X-ray neutron star in the Carina NebulaWork title
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preprintOpenAlex work type
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enPrimary language
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2025Year of publication
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2025-05-05Full publication date if available
- Authors
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Kaustubh Rajwade, Jun Tian, George Younes, Bettina Posselt, B. W. Stappers, Zorawar Wadiasingh, E D Barr, M C Bezuidenhout, Manisha Caleb, F. Jankowski, M. Kramer, Inés Pastor-Marazuela, Mayuresh SurnisList of authors in order
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https://arxiv.org/abs/2505.02808Publisher landing page
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https://arxiv.org/pdf/2505.02808Direct link to full text PDF
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YesWhether a free full text is available
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greenOpen access status per OpenAlex
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https://arxiv.org/pdf/2505.02808Direct OA link when available
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0Total citation count in OpenAlex
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