Long-term Photometry of Eta Carinae

Details Long-term Photometry of Eta Carinae Long-term Photometry of Eta Carinae

Dec 2005

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005aas...20711412a&link_type=abstract

American Astronomical Society Meeting 207, #114.12; Bulletin of the American Astronomical Society, Vol. 37, p.1349

Astronomy and Astrophysics

Astronomy

Scientific paper

Eta Carinae is a supermassive star roughly 3kpc from the sun that is expected to supernova in the next 10,000 years. This highly variable star has been observed to fluctuate in brightness over nine magnitudes in the past 300 years. The data being presented are preliminary findings from our long-term photometric project to monitor Eta Car using data taken with the SMARTS 1.3m telescope with the ANDICAM optical/near-infrared imager. Data are being taken in four wavelengths: V, H, I, and a narrow band filter measuring helium emission at 10830 Å. We have observed significant non-periodic variation on the two week time scale in all four bands being recorded.

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