| タイトル | The Guitar nebula - A bow shock from a slow-spin, high-velocity neutron star |
| 著者（英） | Cordes, James M.; Lundgren, Scott C.; Romani, Roger W. |
| 著者所属（英） | NASA Headquarters |
| 発行日 | 1993-03-11 |
| 言語 | eng |
| 内容記述 | The discovery is reported of a prominent nebula produced by the motion of a high-velocity pulsar, PSR 2224 + 65, through partially neutral gas. The pulsar's transverse speed of over about 800 km/s makes it arguably the fastest known star in the Galaxy and guarantees that it will ultimately escape the Galactic potential well. A deep H-alpha image reveals a bright head and a giant limb-brightened 'body' whose variable width suggests that the ambient interstellar gas has density variations on length scales less than 0.1 pc. Thermalization of shock energy occurs at a rate of about 0.01 times the pulsar's spindown loss rate. These observations provide some insights into the likelihood of finding shocks around other pulsars and the use of nebulae to find high-velocity neutron stars either not acting as pulsars or with their radiation beamed away from the earth. |
| NASA分類 | ASTROPHYSICS |
| レポートNO | 93A31361 |
| 権利 | Copyright |
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