Observations of PSR J1357−6429 at 2.1 GHz with the Australia Telescope Compact Array
PSR J1357−6429 is a young and energetic radio pulsar detected in X-rays and γ-rays. It powers a compact pulsar wind nebula with a jet visible in X-rays and a large-scale plerion detected in X-ray and TeV ranges. Previous multiwavelength studies suggested that the pulsar has a significant proper moti...
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Veröffentlicht in: | Monthly notices of the Royal Astronomical Society 2015-09, Vol.452 (3), p.3273-3280 |
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Sprache: | eng |
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Zusammenfassung: | PSR J1357−6429 is a young and energetic radio pulsar detected in X-rays and γ-rays. It powers a compact pulsar wind nebula with a jet visible in X-rays and a large-scale plerion detected in X-ray and TeV ranges. Previous multiwavelength studies suggested that the pulsar has a significant proper motion of about 180 mas yr−1, implying an extremely high transverse velocity of about 2000 km s−1. In order to verify this, we performed radio-interferometric observations of PSR J1357−6429 with the Australia Telescope Compact Array (ATCA) in the 2.1-GHz band. We detected the pulsar with a mean flux density of 212 ± 5 μJy and obtained the most accurate pulsar position: RA =
$13^{\rm h}57^{\rm m}02{^{\rm s}_{.}}525(14)$
, Dec. = −64°29′29
${^{\prime\prime}_{.}}$
89(15). Using both new and archival ATCA data, we did not find any proper motion and estimated its 90 per cent upper limit as μ |
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ISSN: | 0035-8711 1365-2966 |
DOI: | 10.1093/mnras/stv1420 |