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Iue ultraviolet observations of w um a stars
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Preston, S. Dupree, A. K. |
| Copyright Year | 1981 |
| Description | International Ultraviolet Explorer observations of four W UMa eclipsing binary systems (44 Boo, VW Cep, W UMa, and epsilon) are discussed. The stars generally show large surface fluxes of high temperature lines (C II, C IV, N V, Si IV) which may result from the high rotational velocities forced by synchronous rotation. High dispersion spectra of the 44 Boo system in the Mg II line enable the individual stellar components to be identified. The line widths and phase variations are consistent with the optically determined spectroscopic orbit. Circumstellar absorption of Mg II may be presented at selected phases. |
| File Size | 346719 |
| Page Count | 8 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_19810017393 |
| Archival Resource Key | ark:/13960/t3xt0j15r |
| Language | English |
| Publisher Date | 1981-01-01 |
| Access Restriction | Open |
| Subject Keyword | Astrophysics Stellar Spectra Eclipsing Binary Stars Chromosphere Stellar Temperature Photoionization Late Stars Iue Stellar Rotation Magnesium Dwarf Stars Ultraviolet Astronomy Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Article |
