منابع مشابه
The Remarkable Far-ultraviolet Spectrum of Fk Comae Berenices: King of Spin
A Far Ultraviolet Spectroscopic Explorer (FUSE ) pointing on the ultrafast rotating yellow giant FK Comae Berenices (HD 117555; v sin i 163 km s ) recorded emission profiles of C iii k977 (T 8 ; 10 K) and O vi k1031 (T 3 ; 10 K) that are exceptionally broad and asymmetric, but nearly identical in shape, aside from a blueward absorption component in the latter (identified as interstellar O i, ra...
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We present results on spectroscopic observations of the fast-rotating active giant FK Comae, obtained mainly with the ESA-MUSICOS spectrograph at the Isaac Newton Telescope (INT) in 1996 and 1997 and also with the Aurélie spectrograph at the Observatoire de Haute Provence (OHP) in 1997. The profiles analysed are those of the Balmer, Hα and Hβ, and He i D3 (λ 5876Å) lines. We analyse the Balmer ...
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The development of a practical magnetic tunneling junction (MTJ) ten years ago allowed the creation of a new class of non-volatile memories. This technology may offer superior resistance to total ionizing dose and virtually unlimited write endurance, making it more attractive than flash memories for space applications. Although a number of manufacturers are developing high-density bulk magnetic...
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Complementary metal-oxide semiconductor (CMOS) technology has been the industry standard to implement Very Large Scale Integrated (VLSI) devices for the last two decades. Due to the consequences of miniaturization of such devices (i.e. increasing switching speeds, increasing complexity and decreasing power consumption), it is essential to replace them with a new technology. Quantum-dot c...
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The use of quantum-dots is a promising emerging technology for implementing digital systems at the nano-scale level. Recently studied computational paradigms for quantum-dot technology include the use of locally connected quantum-dot cellular automata (QCA). This technique is based on the interaction of electrons within quantum dots that take advantage of quantum phenomena; the same phenomena t...
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ژورنال
عنوان ژورنال: Astronomy & Astrophysics
سال: 2013
ISSN: 0004-6361,1432-0746
DOI: 10.1051/0004-6361/201220690