Loading...
Please wait, while we are loading the content...
Similar Documents
The ultraviolet variability of the t tauri star rw aurigae
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Imhoff, C. L. Giampapa, M. S. |
| Copyright Year | 1981 |
| Description | Between 1978 and 1979 the visible brightness of RW Aurigae increased by 0.9 mag. During this time (1) CIV and SiIV increased by factors of 2 to 4 while the lower ionization lines remained unchanged; (2) the fluorescent OI line increased by a factor of 8; (3) the shell spectrum changed from emission to absorption; and (4) the ultraviolet continuum brightened by 2.3 mag. On a time scale of a week the continuum varied by as much as 0.8 mag., but the MgII emission lines showed no variability over 10 percent. An active chromosphere, transition region, and envelope cooled by mass loss are hypothesized in order to explain the ultraviolet observations of RW Aur. |
| File Size | 370319 |
| Page Count | 7 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_19810017380 |
| Archival Resource Key | ark:/13960/t6838mr85 |
| Language | English |
| Publisher Date | 1981-01-01 |
| Access Restriction | Open |
| Subject Keyword | Astrophysics Stellar Spectra Luminous Intensity Chromosphere Stellar Temperature Stellar Mass Emission Spectra Absorption Spectra T Tauri Stars Ultraviolet Astronomy Stellar Luminosity Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Article |
