ICTS:32987

Characterizing Narrowband Emission in Magnetar J1809-1943

(2025). Characterizing Narrowband Emission in Magnetar J1809-1943. SciVideos. https://scivideos.org/index.php/icts-tifr/32987

Characterizing Narrowband Emission in Magnetar J1809-1943. SciVideos, Oct. 16, 2025, https://scivideos.org/index.php/icts-tifr/32987 

          @misc{ scivideos_ICTS:32987,
            doi = {},
            url = {https://scivideos.org/index.php/icts-tifr/32987},
            author = {},
            keywords = {},
            language = {en},
            title = {Characterizing Narrowband Emission in Magnetar J1809-1943},
            publisher = {},
            year = {2025},
            month = {oct},
            note = {ICTS:32987 see, \url{https://scivideos.org/index.php/icts-tifr/32987}}
          }
Pulak Mohapatra
Talk numberICTS:32987
Source RepositoryICTS-TIFR

Abstract

"Magnetars are highly magnetised neutron stars and are considered leading candidates for explaining Fast Radio Bursts (FRBs), at least a subset of them. Repeating FRBs, in particular, often exhibit band-limited bursts. Intriguingly, similar spectral characteristics have been observed in radio bursts from the Galactic magnetar J1809-1943. If such features are confirmed to be intrinsic to the source and not a result of propagation through the interstellar medium or instrumental effects, they would offer strong support for a direct physical connection between magnetars and repeating FRBs.
In this work, we have developed a pipeline to systematically search for such narrowband bursts. We further characterise the spectral properties of the detected bursts and provide evidence that the observed emission is intrinsic to the source. These findings contribute not only to bridging the gap between magnetars and FRBs, but also to advancing our understanding of magnetar radio emission mechanisms.