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Radio observations of the evolved pulsar wind nebula HESS J1303-631 with ATCA

Aug 1, 2015, 3:30 PM
Mississippi Foyer (World Forum)

Mississippi Foyer

World Forum

Churchillplein 10 2517 JW Den Haag The Netherlands
Board: 73
Poster contribution GA-EX Poster 2 GA


Iurii Sushch (North-West University)


The initially unidentified very high energy (VHE; E > 100 GeV) gamma-ray source HESS J1303-631 was recently associated with the pulsar PSR J1301-6305 basing on its enregy-dependent morphology. Subsequent detection of X-ray and GeV counterparts also support the identification of the H.E.S.S. source as evolved pulsar wind nebula (PWN). We report here on recent radio observations of the PSR J1301-6305 field of view (FOV) with ATCA dedicated to search for the radio counterpart of this evolved PWN. Observations at 5.5 GHz and 7.5 GHz do not reveal any extended emission associated with the pulsar. The analysis of the archival 1.384 GHz and 2.368 GHz data also does not show any significant emission. 1.384 GHz data reveal a hint of an extended shell-like emission in the PSR J1301-6305 FOV which might be a supernova remnant. We discuss the implications of the non-detection at radio wavelengths on the nature and evolution of the PWN as well as the possibility of the SNR candidate being a birth place of PSR J1301-6305.
Collaboration -- not specified --
Registration number following "ICRC2015-I/" 826

Primary author

Iurii Sushch (North-West University)


Igor Oya (DESY Zeuthen) Matthew Dalton (Active Space Technologies GmbH, Berlin, Germany) Simon Johnston (Australia Telescope National Facility) Ullrich Schwanke (Humboldt University Berlin)

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