The early-type multiple system QZ Carinae
نویسندگان
چکیده
منابع مشابه
The Multishift QZ Algorithm with Aggressive Early Deflation
Recent improvements to the QZ algorithm for solving generalized eigenvalue problems are summarized. Among the major modifications are novel multishift QZ iterations based on chasing chains of tiny bulges and an extension of the so called aggressive early deflation strategy. The former modification aims to improve the execution time of the QZ algorithm on modern computing systems without changin...
متن کاملMultishift Variants of the QZ Algorithm with Aggressive Early Deflation
Abstract. New variants of the QZ algorithm for solving the generalized eigenvalue problem are proposed. An extension of the small-bulge multishift QR algorithm is developed, which chases chains of many small bulges instead of only one bulge in each QZ iteration. This allows the effective use of level 3 BLAS operations, which in turn can provide efficient utilization of high performance computin...
متن کاملThe Orientation of the Eta Carinae Binary System
We examine a variety of observations that shed light on the orientation of the semi-major axis of the η Carinae massive binary system. Under several assumptions we study the following observations: The Doppler shifts of some He I P-Cygni lines that is attributed to the secondary’s wind, of one Fe II line that is attributed to the primary’s wind, and of the Paschen emission lines which are attri...
متن کاملthe investigation of the relationship between type a and type b personalities and quality of translation
چکیده ندارد.
Early Chandra X-ray Observations of Eta Carinae
Sub-arcsecond resolution Chandra observations of η Car reveal a 40 × 70 ring or partial shell of X-ray emission surrounding an unresolved, bright, central source. The spectrum of the central source is strongly absorbed and can be fit with a high-temperature thermal continuum and emission lines. The surrounding shell is well outside the optical/IR bipolar nebula and is coincident with the Outer ...
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ژورنال
عنوان ژورنال: Astronomy & Astrophysics
سال: 2001
ISSN: 0004-6361,1432-0746
DOI: 10.1051/0004-6361:20000228