Abstract
We report the Australia Telescope Compact Array (ATCA) and ROSAT detection of supernova remnant (SNR) J0529-6653 in the Large Magellanic Cloud (LMC) which is positioned in the projected vicinity of the known radio pulsar PSRB0529-66. In the radio continuum frequencies, this LMC object follows a typical SNR structure of a shell morphology with brightened regions in the south-west. It exhibits an almost circular shape of D= 33 × 31pc (1-pc uncertainty in each direction) and radio spectral index of α=-0.68 ± 0.03 - typical for mid-age SNRs. We also report detection of polarized regions with a peak value of ∼17 ± 7per cent at 6cm. An investigation of ROSAT images produced from merged Position Sensitive Proportional Counter (PSPC) data reveals the presence of extended X-ray emission coincident with the radio emission of the SNR. In X-rays, the brightest part is in the north-east. We discuss various scenarios with regard to the SNR-pulsar association with emphasis on the large age difference, lack of a pulsar trail and no prominent point-like radio or X-ray source.
Original language | English |
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Pages (from-to) | 2588-2595 |
Number of pages | 8 |
Journal | Monthly Notices of the Royal Astronomical Society |
Volume | 420 |
Issue number | 3 |
DOIs | |
Publication status | Published - Mar 2012 |
Keywords
- ISM: supernova remnants
- Magellanic Clouds
- Pulsars: general