A highly magnetized long-period radio transient exhibiting unusual emission features
Fuente:
arXiv
Gespeichert in:
| Hauptverfasser: | , , , , |
|---|---|
| Format: | Preprint |
| Veröffentlicht: |
2025
|
| Schlagworte: | |
| Online-Zugang: | |
| Tags: |
Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
|
| _version_ | 1866916571562115072 |
|---|---|
| author | Men, Yunpeng McSweeney, Sam Hurley-Walker, Natasha Barr, Ewan Stappers, Ben |
| author_facet | Men, Yunpeng McSweeney, Sam Hurley-Walker, Natasha Barr, Ewan Stappers, Ben |
| contents | Long-period radio transients are a new class of astrophysical objects that exhibit periodic radio emission on timescales of tens of minutes. Their true nature remains unknown; possibilities include magnetic white dwarfs, binary systems, or long-period magnetars; the latter class is predicted to produce fast radio bursts (FRBs). Using the MeerKAT radio telescope, we conducted follow-up observations of the long-period radio transient GPM J1839-10. Here we report that the source exhibits a wide range of unusual emission properties, including polarization characteristics indicative of magnetospheric origin, linear-to-circular polarization conversion, and drifting substructures closely resembling those observed in repeating FRBs. These radio characteristics provide evidence in support of the long-period magnetar model and suggest a possible connection between long-period radio transients, magnetars, and FRBs. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2501_10528 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | A highly magnetized long-period radio transient exhibiting unusual emission features Men, Yunpeng McSweeney, Sam Hurley-Walker, Natasha Barr, Ewan Stappers, Ben High Energy Astrophysical Phenomena Long-period radio transients are a new class of astrophysical objects that exhibit periodic radio emission on timescales of tens of minutes. Their true nature remains unknown; possibilities include magnetic white dwarfs, binary systems, or long-period magnetars; the latter class is predicted to produce fast radio bursts (FRBs). Using the MeerKAT radio telescope, we conducted follow-up observations of the long-period radio transient GPM J1839-10. Here we report that the source exhibits a wide range of unusual emission properties, including polarization characteristics indicative of magnetospheric origin, linear-to-circular polarization conversion, and drifting substructures closely resembling those observed in repeating FRBs. These radio characteristics provide evidence in support of the long-period magnetar model and suggest a possible connection between long-period radio transients, magnetars, and FRBs. |
| title | A highly magnetized long-period radio transient exhibiting unusual emission features |
| topic | High Energy Astrophysical Phenomena |
| url | https://arxiv.org/abs/2501.10528 |