The Distance and Age of the SNR Kes 73 and AXP 1E 1841-045
| dc.creator | Tian, Wenwu | |
| dc.creator | Leahy, Denis A. | |
| dc.date | 2007-09-28 | |
| dc.date | 2008-02-15 | |
| dc.date.accessioned | 2026-07-07T09:20:40Z | |
| dc.date.available | 2026-07-07T09:20:40Z | |
| dc.description | We provide a new distance estimate to the supernova remnant (SNR) Kes 73 and its associated anomalous X-ray pulsar (AXP) 1E 1841-045. 21 cm HI images and HI absorption/ emission spectra from new VLA observations, and 13CO emission spectra of Kes 73 and two adjacent compact HII regions (G27.276+0.148 and G27.491+0.189) are analyzed. The HI images show prominent absorption features associated with Kes 73 and the HII regions. The absorption appears up to the tangent point velocity giving a lower distance limit to Kes 73 of 7.5 kpc, which has previously been given as the upper limit. Also, G27.276+0.148 and G27.491+0.189 are at the far kinematic distances of their radio recombination line velocities. There is prominent HI emission in the range 80--90 km/s for all three objects. The two HII regions show HI absorption at ~ 84 km/s, but there is no absorption in the Kes 73 absorption spectrum. This implies an upper distance limit of ~ 9.8 kpc to Kes 73. This corrected larger distance to Kes 73/ AXP 1E 1841-045 system leads to a refined age of the SNR of 500 to 1000 yr, and a ~ 50% larger AXP X-ray luminosity. | |
| dc.description | 10 pages, 2 figures, ApJ, dol:10.1086/"529120" | |
| dc.identifier | https://arxiv.org/abs/0709.4667 | |
| dc.identifier | http://arxiv.org/abs/0709.4667 | |
| dc.identifier | doi:10.1086/529120 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/154794 | |
| dc.subject | Astrophysics | |
| dc.title | The Distance and Age of the SNR Kes 73 and AXP 1E 1841-045 | |
| dc.type | text |