A comment on Eta Carinae's Homunculus Nebula imaging

Details A comment on Eta Carinae's Homunculus Nebula imaging A comment on Eta Carinae's Homunculus Nebula imaging

2010-05-24

arxiv.org/abs/1005.4323v1

Astronomy and Astrophysics

Astrophysics

Solar and Stellar Astrophysics

Astronomy, Image Processing, Edge detection

Scientific paper

Homunculus Nebula is surrounding the star system Eta Carinae. The nebula is embedded within a much larger ionized hydrogen region, which is the Carina Nebula. Homunculus is believed to have been ejected in a huge outburst from Eta Carinae in 1841, so brightly to be visible from Earth. This massive explosion produced two polar lobes and an equatorial disc, moving outwards. Though Eta Carinae is quite away, approximately 7,500 light-years, it is possible to distinguish in the nebula, many structures with the size of about the diameter of our solar system. Knots, dust lanes and radial streaks appear quite clearly in many images. In this paper, we compare the imaging of Homunculus Nebula has obtained by HST and Gemini South Telescope research teams. We use some processing methods, to enhance some features of the structure, such as the color gradient, and knots and filaments in the central part of the nebula.

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