Variable unidentified emission near 6307 Å in η carinae

J. C. Martin, Kris Davidson, F. Hamann, O. Stahl, K. Weis

Research output: Contribution to journalArticlepeer-review

11 Scopus citations

Abstract

We have discovered a conspicuous unidentified variable feature near 6307 A in the spectrum of η Carinae that is spatially unresolved from the central star and its wind (r 200-300 AU). It is significant for two reasons: first, such prominent unidentified lines are now rare in this object, and second, this feature varies strongly and systematically. It exhibits a combination of characteristics that, so far as we know, are unique in η Carinae's spectrum. It may provide insights into the recurrent spectroscopic events and the star's long-term brightening.

Original languageEnglish (US)
Pages (from-to)697-705
Number of pages9
JournalPublications of the Astronomical Society of the Pacific
Volume118
Issue number843
DOIs
StatePublished - May 2006

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