Radio Observations of Two Isolated Neutron Stars, RXJ0720.4-3125 and RX J0806.4-4132

Details Radio Observations of Two Isolated Neutron Stars, RXJ0720.4-3125 and RX J0806.4-4132 Radio Observations of Two Isolated Neutron Stars, RXJ0720.4-3125 and RX J0806.4-4132

2003-02-24

arxiv.org/abs/astro-ph/0302502v1

Astronomy and Astrophysics

Astrophysics

Accepted for publication in MNRAS. 4 pages, 4 figures

Scientific paper

10.1046/j.1365-8711.2003.06562.x

Radio observations of two isolated neutron stars, RXJ0720.4-3125 and RX J0806.4-4132, have been made with the Australia Telescope Compact Array at a frequency of 1.4 GHz. No continuum emission is detected from either object with a 3 sigma upper limit of 0.2 mJy. The data were also folded synchronously with the known rotation periods of 8.4 and 11.4 s respectively. No pulsed emission was detected. If the pulse duty cycle is small, the upper limit on pulsed emission can be reduced still further to 0.04 mJy. The best evidence seems to indicate that the isolated neutron stars detected by ROSAT all-sky survey are relatively young objects, born with a very high magnetic field.

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