Forbidden mechanism - Wikipedia, the free encyclopedia
A forbidden mechanism or forbidden line is a concept in physics. It is a spectral line emitted by atoms undergoing energy transitions not normally allowed by the selection rules of quantum mechani...
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Lakeer - Forbidden Lines - Wikipedia, the free encyclopedia
Lakeer - Forbidden Lines is a 2004 Bollywood film, directed by Ahmed Khan and starring Sunny Deol, John Abraham, Sunil Shetty and Sohail Khan. Arjun Rana (Sunny Deol) is a powerful personality, feare...
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Although not seen on Earth – hence their name – forbidden lines may account for 90% or more of the total visual brightness of an object such as a planetary nebula. A forbidden line arises when an electron in an excited (energized) atom jumps from a metastable state to a lower energy level.
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Lakeer - Forbidden Lines (2004) More at IMDbPro » ... IMDb > Lakeer - Forbidden Lines (2004) ... The forbidden lines...
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An example of this is a level in doubly ionized oxygen, which after several hours will decay to a lower level with the emission of green lines. When these green lines were first seen, they did not seem to be associated with ... Home > CPEP: Online Fusion Course > Plasmas - the 4th State of Matter > Nebulae > Forbidden Line...
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Results from multiconfiguration Dirac-Fock (MCDF) and multiconfiguration Hartree-Fock (MCHF) with Breit and Breit-Pauli configuration interaction corrections, respectively, are presented for E2 and M1 forbidden transitions between levels of the three lowest quartet terms of Fe IV and the ground state .
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Four new diagram lines at 1899.7 x.u., 1921.2 x.u., 2008.0 x.u. and 2162.6 x.u., corresponding, in that order, to the forbidden transition LIOI and the quadrupole transitions LINIV,V, LIInVI,VII and LIIINVI,VII have been observed for the first time.
stacks.iop.org/0022-3700/3/1392
Perturbation by this motional electric field mixes parity so that the forbidden magnetic-dipole transitions can possibly be turned into the much faster electric-dipole transitions. The magnetic field itself also mixes state changing the transition probabilities.
stacks.iop.org/0022-3700/8/1824
THE bright line spectrum of Nova RR Pictoris (1925) is characterized in the later stages by a group of lines in the visible region, of which the most prominent, λ 5723 and λ 6087, form with Hα and λ 4686 of He II the dominating lines of the spectrum1.
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