A Sea Change in Eta Carinae

Andrea Mehner; Kris Davidson; Roberta M. Humphreys; John C. Martin; Kazunori Ishibashi; Gary J. Ferland; Nolan R. Walborn

doi:10.1088/2041-8205/717/1/L22

A Sea Change in Eta Carinae

Solar and Stellar Astrophysics 2015-05-18 v3

Authors: Andrea Mehner , Kris Davidson , Roberta M. Humphreys , John C. Martin , Kazunori Ishibashi , Gary J. Ferland , Nolan R. Walborn

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Abstract

Major stellar-wind emission features in the spectrum of Eta Car have recently decreased by factors of order 2 relative to the continuum. This is unprecedented in the modern observational record. The simplest, but unproven, explanation is a rapid decrease in the wind density.

Keywords

eta carinae stellar wind emission features wind density spectral changes

Cite

@article{arxiv.1004.3529,
  title  = {A Sea Change in Eta Carinae},
  author = {Andrea Mehner and Kris Davidson and Roberta M. Humphreys and John C. Martin and Kazunori Ishibashi and Gary J. Ferland and Nolan R. Walborn},
  journal= {arXiv preprint arXiv:1004.3529},
  year   = {2015}
}

Comments

11 pages, 3 figures, accepted for publication in ApJL

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