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Heartbeat of the Mouse: a Young Radio Pulsar Associated with the Axisymmetric Nebula G359.23−0.82
| Content Provider | Semantic Scholar |
|---|---|
| Author | Anchester, R. N. M. Aensler, B. M. G. |
| Copyright Year | 2002 |
| Abstract | We report the discovery of PSR J1747 −2958, a radio pulsar with period P = 98 ms and dispersion measure DM = 101 cm−3 pc, in a deep observation with the Parkes telescope of the axi ally-symmetric “Mouse” radio nebula (G359.23−0.82). Timing measurements of the newly discovered pulsar r eveal a characteristic age P/2Ṗ = 25 kyr and spin-down luminositẏ E = 2.5×1036erg s−1. The pulsar (timing) position is consistent with that of the Mouse’s “head”. The distance derived from the DM, ≈ 2 kpc, is consistent with the Mouse’s distance limit from H I absorption,< 5.5 kpc. Also, the X-ray energetics of the Mouse are compatible with being powered by the pulsar. Therefore we argue that PSR J1747 −2958, moving at supersonic speed through the local interste llar medium, powers this unusual non-thermal nebula. The pulsar is a weak radio source, with period-averaged flux density at 1374 MHz of 0.25 mJy and luminosity ∼ 1 mJy kpc2. Subject headings: ISM: individual (G359.23−0.82) — pulsars: individual (PSR J1747 −2958) |
| File Format | PDF HTM / HTML |
| Alternate Webpage(s) | http://arxiv.org/pdf/astro-ph/0209480v1.pdf |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
