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Laboratory spectroscopy of isobutene
Isobutene ((CH_3_)2_C=CH_2) is one of the four isomers of butene (C_4_H_8_). After the detection of propene (CH_3_CH=CH_2_) toward TMC-1, and also in the warmer environment of... -
Al I & Al II absolute transition probabilities
Relative intensity measurements of Al I and Al II spectral lines in the visible and ultraviolet spectral ranges are performed using a capacitively coupled high frequency double... -
M1 and E2 emission lines in K-like ions
Relativistic Quantum Defect Orbital (RQDO) calculations of transition probabilities for E2 (electric quadrupole) and M1 (magnetic dipole) forbidden transition in the potassium... -
NII effective recombination coefficients
We calculate effective recombination coefficients for the formation of selected lines of NII. New photoionization data are computed which accurately map the near threshold... -
N-like and O-like Breit-Pauli energy levels
Breit-Pauli results for energy levels, lifetimes, and Lande g_J_ factors have been determined for all levels up to 2p^2^ 3d of the nitrogen-like sequence (Z=7-17) and 2p^3^ 3d...
