On the binarity of Eta Carinae

Massive Stars ◽  
2010 ◽  
pp. 116-125
Author(s):  
Theodore. R. Gull
Keyword(s):  
Eta Carinae

scholarly journals Effects of fast rotation on the wind of Luminous Blue Variables

2010 ◽  
Vol 6 (S272) ◽  
pp. 56-61
Author(s):  
Jose H. Groh
Keyword(s):  
Near Infrared ◽  
Rotational Velocity ◽  
Spectral Lines ◽  
High Resolution Spectroscopy ◽  
Luminous Blue Variables ◽  
Eta Carinae ◽  
Fast Rotation ◽  
Long Baseline ◽  
Infrared Interferometry ◽  
Fast Rotating

AbstractWhile theoretical studies have long suggested a fast-rotating nature of Luminous Blue Variables (LBVs), observational confirmation of fast rotation was not detected until recently. Here I discuss the diagnostics that have allowed us to constrain the rotational velocity of LBVs: broadening of spectral lines and latitude-dependent variations of the wind density structure. While rotational broadening can be directly detected using high-resolution spectroscopy, long-baseline near-infrared interferometry is needed to directly measure the shape of the latitude-dependent photosphere that forms in a fast-rotating star. In addition, complex 2-D radiative transfer models need to be employed if one's goal is to constrain rotational velocities of LBVs. Here I illustrate how the above methods were able to constrain the rotational velocities of the LBVs AG Carinae, HR Carinae, and Eta Carinae.

Die Riesen unter den Sonnen: Betelgeuze Pistolenstern und Eta Carinae

1998 ◽  
pp. 112-117
Author(s):  
Daniel Fischer ◽  
Hilmar Duerbeck
Keyword(s):  
Eta Carinae

scholarly journals Cobalt in Eta Carinae

1976 ◽  
Vol 174 (1) ◽  
pp. 59P-62P
Author(s):  
A. D. Thackeray
Keyword(s):  
Eta Carinae

scholarly journals DETECTION OF GAMMA-RAY EMISSION FROM THE ETA-CARINAE REGION

2009 ◽  
Vol 698 (2) ◽  
pp. L142-L146 ◽  
Author(s):  
M. Tavani ◽  
S. Sabatini ◽  
E. Pian ◽  
A. Bulgarelli ◽  
P. Caraveo ◽  
...  
Keyword(s):  
Gamma Ray ◽  
Eta Carinae ◽  
Gamma Ray Emission

scholarly journals First Results of Eta Carinae Observations with H.E.S.S. II

2017 ◽  
Author(s):  
Eva Leser ◽  
Stefan Ohm ◽  
Matthias Füßling ◽  
Mathieu de Naurois ◽  
Kathrin Egberts ◽  
...  
Keyword(s):  
Eta Carinae ◽  
First Results

scholarly journals Note on eta Carinae

1915 ◽  
Vol 8 ◽  
pp. 134-134
Author(s):  
R. F. Sanford
Keyword(s):  
Eta Carinae
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