Variable unidentified emission near 6307 Å in η carinae

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

doi:10.1086/503877

Variable unidentified emission near 6307 Å in η carinae

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

Minnesota Institute for Astrophysics

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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 language	English (US)
Pages (from-to)	697-705
Number of pages	9
Journal	Publications of the Astronomical Society of the Pacific
Volume	118
Issue number	843
DOIs	https://doi.org/10.1086/503877
State	Published - May 2006

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title = "Variable unidentified emission near 6307 {\AA} in η carinae",

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.",

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year = "2006",

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journal = "Publications of the Astronomical Society of the Pacific",

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AU - Martin, J. C.

AU - Davidson, Kris

AU - Hamann, F.

AU - Stahl, O.

AU - Weis, K.

PY - 2006/5

Y1 - 2006/5

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AB - 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.

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