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| Title: |
UV observations of epsilon aurigae during ingress and totality
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| Author(s): |
Altner, B. M.; Chapman, R. D.; Kondo, Y.; Stencel, R. E.
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| Abstract: |
Analysis of short wavelength prime camera (SWP) and long wavelength redundant camera (LWR) spectra of Epsilon Aurigae taken during the preeclipse, ingress and total phases of the present eclipse has provided further constraints on models of this enigmatic system. High dispersion images show no significant change in the strength of the Mg II emission lines during the course of the eclipse. Both high and low dispersion spectra indicate that the eclipse starts earlier, ends later and is deeper in the UV compared to visual wqvelengths. The earlier observation that the eclipse depth is wavelength dependent shortward of 2400 A is confirmed. Abrupt changes in the light curve appear at all wavelengths, suggestive of discontinuities in the opacity of a ring of material surrounding the secondary object.
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| NASA Center: |
Goddard Space Flight Center
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| Publication Date: |
Dec 1, 1984
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| Document Source: |
CASI |
| Online Source: |
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| Document ID: |
19850012728
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| Accession ID: |
85N21038
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| Publication Information: |
Future of Ultraviolet Astronomy Based on Six Years of IUE Res., p 365-368, Number of Pages = 4 |
| Price Code: |
A01 |
| Keywords: |
AURIGA CONSTELLATION; ECLIPSING BINARY STARS; EMISSION SPECTRA; IUE; ULTRAVIOLET SPECTROSCOPY; ASTRONOMICAL MODELS; LINE SPECTRA; STELLAR OCCULTATION; ULTRAVIOLET ASTRONOMY;
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| Notes: |
In its Future of Ultraviolet Astronomy Based on Six Years of IUE Res. p 365-368 (SEE N85-20961 11-89) |
| Accessibility: |
Unclassified; No Copyright; Unlimited; Publicly available; |
| Updated/Added to NTRS: |
2008-12-26 |
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