Astronomy and Astrophysics – Astrophysics – Solar and Stellar Astrophysics
Scientific paper
2010-05-20
Astronomy and Astrophysics
Astrophysics
Solar and Stellar Astrophysics
8 pages, 3 figures
Scientific paper
Epsilon Aurigae is a complicated binary star that undergoes optical eclipses every 27 years, including the present year. An update is given here on the array of photometric and spectroscopic observations underway, thanks to the eclipse observing campaign and its dedicated participants. In addition, breakthrough results have emerged from (1) infrared and ultraviolet spectral energy distribution observations, and (2) especially with interferometric imaging that revealed the long suspected dark disk in transit, plus (3) new optical spectra that are revealing substructure inside the disk itself. Implications of many of these observations is discussed, but as the eclipse data are still being collected, I anticipate that additional discoveries are still to come, throughout 2010, and beyond.
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