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- W4366412470 abstract "Very-high-energy $gamma$-ray emission provides constraints on the morphology and the physics mechanisms involved in the evolution of pulsar wind nebulae (PWNe). In the Galactic plane, around $312 ^{circ}$ of Galactic longitude, a promising region two-degree wide containing five powerful pulsars may offer a new insight on the transition between TeV-emitting PWNe and pulsar halos. Their rotational energies range from $10^{35}$ to $10^{37}$ erg s$^{-1}$ for ages between 13.6 and 62.8 kyr. Extended emission is detected with H.E.S.S. (High Energy Stereoscopic System) in their vicinity, notably around the pulsar PSR J1413-6205. We processed 124 hours of H.E.S.S observations with an algorithm improving background fitting for the study of extended sources. We applied a three-dimensional likelihood analysis technique to model the different sources in the region using a configuration that optimizes the collection area at the highest energies. This contribution focuses on the detection of a new extended source around PSR J1413-6205 over 5$sigma$ with a hard spectrum. Preliminary results on this source show a radius of $0.12 ^{circ}$ $pm$ $0.01 ^{circ}_{rm stat}$, an index of 2.06 $pm$ 0.20$_{rm stat}$ and a lower limit on a cut-off energy of 17 TeV, at a 90% confidence level. The detected emission is consistent with previous PWN models." @default.
- W4366412470 created "2023-04-21" @default.
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- W4366412470 date "2023-04-19" @default.
- W4366412470 modified "2023-09-27" @default.
- W4366412470 title "Study of a pulsar wind nebula candidate around the intermediate-age pulsar PSR J1413-6205 with H.E.S.S." @default.
- W4366412470 doi "https://doi.org/10.22323/1.417.0135" @default.
- W4366412470 hasPublicationYear "2023" @default.
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