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Eta carinae and its ejecta, the homunculus
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Gull, Theodore R. |
| Copyright Year | 2014 |
| Description | Eta Carinae (Eta Car), its interacting winds and historical ejecta provide an unique astrophysical laboratory that permits addressing a multitude of questions ranging from stellar evolution, colliding winds, chemical enrichment, nebular excitation to the formation of molecules and dust. Every 5.54 years, Eta Car changes from high excitation to several-months-long low excitation caused by modulation of the massive interacting winds due to a very eccentric binary orbit. The surrounding Homunculus (Figure 1) and Little Homunculus, thrown out in the 1840s Great Eruption and the 1890s Lesser Eruption, respond to the changing flux, providing clues to many physical phenomena of great interest to astrophysicists. |
| File Size | 229431 |
| Page Count | 7 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_20140017417 |
| Archival Resource Key | ark:/13960/t41s1t05v |
| Language | English |
| Publisher Date | 2014-07-11 |
| Access Restriction | Open |
| Subject Keyword | Eta Carinae Homunculus Stellar Evolution Stellar Spectra Stellar Winds Red Shift Stellar Mass Ejection X Ray Spectroscopy Nasa Space Programs Periodic Variations Stellar Luminosity Massive Stars Laboratory Astrophysics Spectrographs Binary Stars H Ii Regions Hubble Space Telescope Excitation Nebulae Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Article |
