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A comparison of lyman alpha and hei lambda 10830 line structure and variations in early-type star atmospheres
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Meisel, D. D. |
| Copyright Year | 1977 |
| Description | Fabry-Perot interferometric profiles for fifty of the early-type stars including supergiants, eclipsing binaries, Bp and Ap stars, Be and shell stars, and variable stars have been obtained. Results for beta Persei (Algol) just before primary and secondary eclipses show strong emission profiles lasting about 0.1 phase. An absorption line was seen during secondary eclipse. Bright supergiant stars (O9-A2) show time-variable, complicated absorption/emission profiles similar to those obtained for the Be/shell stars. |
| File Size | 750418 |
| Page Count | 14 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_19770023101 |
| Archival Resource Key | ark:/13960/t4hn01f67 |
| Language | English |
| Publisher Date | 1977-01-01 |
| Access Restriction | Open |
| Subject Keyword | Astronomy Near Infrared Radiation Stellar Spectra Shell Stars Stellar Atmospheres Lyman Spectra Ultraviolet Spectra H Lines Stellar Radiation Astronomical Spectroscopy Stellar Spectrophotometry Early Stars Ntrs Nasa Technical Reports ServerĀ (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Technical Report |