The N II Lines in Eta Carinae: A Further Evidence for Mass Transfer During the Nineteenth Century Great Eruption

Details The N II Lines in Eta Carinae: A Further Evidence for Mass Transfer During the Nineteenth Century Great Eruption The N II Lines in Eta Carinae: A Further Evidence for Mass Transfer During the Nineteenth Century Great Eruption

2011-04-24

arxiv.org/abs/1104.4655v1

Astronomy and Astrophysics

Astrophysics

Solar and Stellar Astrophysics

Comments on: "N II {\lambda}{\lambda}5668-5712, a New Class of Spectral Features in Eta Carinae" (arXiv:1104.1829)

Scientific paper

We argue that the emission and the absorption components of he N II lines recently observed in Eta Carinae can originate in the secondary's wind acceleration zone. We base this claim in part on the presence of these lines in hot nitrogen rich stars, such as WN 8 stars, and on the expected clumpy nature of such winds. The envelope of the secondary star in Eta Carinae is expected to be nitrogen rich due to accretion of few solar masses of the primary luminous blue variable's nitrogen rich material during the nineteenth century Great Eruption. Another argument in support of N II lines origin in the acceleration zone of the secondary wind is the behavior of the emission components. The emission components of the lines show the same Doppler shift variation as that of the absorption components. The secondary's-wind origin of the N II lines is compatible with the binary orientation in which the secondary is closer to us near periastron passage.

Affiliated with

Also associated with

No associations

Rating

The N II Lines in Eta Carinae: A Further Evidence for Mass Transfer During the Nineteenth Century Great Eruption does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with The N II Lines in Eta Carinae: A Further Evidence for Mass Transfer During the Nineteenth Century Great Eruption, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and The N II Lines in Eta Carinae: A Further Evidence for Mass Transfer During the Nineteenth Century Great Eruption will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-544375