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4 papers · 1 filter
The energy dependence of relativistic nonradiative electron capture
J F McCann, J T Glass, D S F Crothers
The energy dependence of the nonradiative electron capture cross-section is discussed in the relativistic domain. A simple analytic expression is obtained for inner-shell transitio…
When each continuous operator is regular, II
Yuri A. Abramovich, Anthony W. Wickstead
The following theorem is essentially due to L.~Kantorovich and B. Vulikh and it describes one of the most important classes of Banach lattices between which each continuous operato…
An analytic approximation to the isothermal sphere
Priyamvada Natarajan, Donald Lynden-Bell
We present a useful analytic approximation to the solution of the Lane-Emden equation for infinite polytropic index - the isothermal sphere. The optimized expression obtained for t…
A Counter-rotating Bulge in the Sb Galaxy NGC 7331
F. Prada, C. Gutierrez, R. F. Peletier +1
We have found that the bulge of the large, nearby Sb galaxy NGC 7331 rotates retrograde to its disk. Analysis of spectra in the region of the near-IR Ca II triplet along the major…