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Heartbeat of the Mouse: a young radio pulsar associated with the axisymmetric nebula G359.23-0.82 | | F. Camilo
; R. N. Manchester
; B. M. Gaensler
; D. R. Lorimer
; | | Date: |
23 Sep 2002 | | Journal: | Astrophys.J. 579 (2002) L25 | | Subject: | astro-ph | | Affiliation: | Columbia), R. N. Manchester (ATNF), B. M. Gaensler (CfA), and D. R. Lorimer (Jodrell Bank | | Abstract: | We report the discovery of PSR J1747-2958, a radio pulsar with period P = 98 ms and dispersion measure DM = 101 pc/cc, in a deep observation with the Parkes telescope of the axially-symmetric "Mouse" radio nebula (G359.23-0.82). Timing measurements of the newly discovered pulsar reveal a characteristic age Pdt/2dP = 25 kyr and spin-down luminosity dE/dt = 2.5e36 erg/s. 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 HI 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 interstellar 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 kpc^2. | | Source: | arXiv, astro-ph/0209480 | | Services: | Forum | Review | PDF | Favorites | |
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