1. Multifrequency study of the Large Magellanic Cloud supernova remnant J0529−6653 near pulsar B0529-66.
- Author
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Bozzetto, L. M., Filipović, M. D., Crawford, E. J., Haberl, F., Sasaki, M., Urošević, D., Pietsch, W., Payne, J. L., De Horta, A. Y., Stupar, M., Tothill, N. F. H., Dickel, J., Chu, Y.-H., and Gruendl, R.
- Subjects
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SUPERNOVA remnants , *TELESCOPES , *RADIO frequency , *X-rays , *ASTROPHYSICS , *DATA analysis , *MAGELLANIC clouds - Abstract
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 PSR B0529−66. 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 × 31 pc (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 ± 7 per cent at 6 cm. 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. [ABSTRACT FROM AUTHOR]
- Published
- 2012
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