P791 - Monitoring known X-ray magnetars for intermittent radio emission
CSIRO RDS Repository
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Title |
P791 - Monitoring known X-ray magnetars for intermittent radio emission
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Subject |
Astronomical and Space Sciences not elsewhere classified
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Description |
Neutron stars are extreme objects, the size of a city but containing the mass of the Sun. Pulsars are neutron stars with very strong magnetic fields that rotate rapidly and emit focused beams of radio waves that we may detect on Earth once with every turn of the star, in light-house-like fashion. While the typical pulsar has a magnetic field strength approximately a million million times stronger than Earth's, a special and rare class of neutron stars has a field up to another factor of 1000 stronger - these are the "magnetars", the most magnetic objects known in the Universe. Magnetars shine in ways that are different from those of ordinary pulsars, emitting powerful beams of X-rays. For many years, despite careful searches, no magnetar was seen to shine at radio wavelengths. Then, 3 were discovered at Parkes to emit radio pulses. These pulses have unusual characteristics, however, and in order to understand better this radiation (and in the process learn more about normal pulsar emission and magnetars), we need to detect more radio magnetars. In this programme we will observe 11 (so far) X-ray-only magnetars to try to discover more radio-emitting ones. |
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Publisher |
CSIRO
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Date |
2021-07-16
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Identifier |
csiro:P791
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Language |
eng
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