Mira B Rejuvenated
| dc.creator | Wood, Brian E. | |
| dc.creator | Karovska, Margarita | |
| dc.date | 2006-06-19 | |
| dc.date.accessioned | 2026-07-07T10:39:19Z | |
| dc.date.available | 2026-07-07T10:39:19Z | |
| dc.description | Recent ultraviolet spectra from the Hubble Space Telescope (HST) and Far Ultraviolet Spectroscopic Explorer (FUSE) satellites demonstrate that UV line and continuum fluxes observed from Mira B are increasing back towards the levels that the International Ultraviolet Explorer observed in 1979-1980 and 1990-1995, after having been found in a very low state by HST and FUSE in 1999-2001. The UV emission is associated with accretion of material onto Mira B from Mira A's massive wind, so the variability is presumably due to variations in accretion rate. From wind absorption features, we estimate a Mira B mass loss rate of 2.5e-12 M_sun/yr, indicating that Mira B's wind has increased in strength along with the accretion rate. The UV variability may be associated with a previously reported 14-year periodicity in Mira B's optical emission. | |
| dc.description | 12 pages, 3 figures, AASTEX v5.0, accepted by ApJ | |
| dc.identifier | https://arxiv.org/abs/astro-ph/0606457 | |
| dc.identifier | http://arxiv.org/abs/astro-ph/0606457 | |
| dc.identifier | Astrophys.J.649:410-414,2006 | |
| dc.identifier | doi:10.1086/506383 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/180986 | |
| dc.subject | Astrophysics | |
| dc.title | Mira B Rejuvenated | |
| dc.type | text |