810 datasets found

We present a detailed analysis of acetylene (C_2_H_2_) and its isotopologs in the orion IRc2, focusing on the determination of ^12^C/^13^C isotopic ratios using high-resolution...

Multiple photoionization is investigated for the 2p shell in the iron atom. Study of the single photoionization with subsequent radiative and Auger cascade includes all levels...

Accurate line lists for the carbon dimer, C_2_, are presented. These line lists cover rovibronic transitions between the eight lowest electronic states: X, A, B, B', a, b, c, d....

SiS has long been observed in the circumstellar medium of the carbon-rich star IRC+10216 CW Leo. Comprehensive and accurate rotation-vibrational line lists and partition...

A computed line list for hydrogen peroxide, H_2_^16^O_2_, applicable to temperatures up to T=1250K is presented. A semi-empirical high accuracy potential energy surface is...

This work presents the AYT2 line list: a comprehensive list of 115 million ^1^H_2_^32^S vibration-rotation transitions computed using an empirically adjusted potential energy...

Sulphur dioxide is well-known in the atmospheres of planets and satellites, where its presence is often associated with volcanism, and in circumstellar envelopes of young and...

Accurate rotational-vibrational line lists for two isotopologues of PN in their ground electronic states are computed. The line lists are produced using an empirical potential...

We have developed further the technique of time-dependent modelling of magnetohydrodynamic shock waves, with a view to interpreting the molecular line emission from outflow...

We report laboratory spectroscopy for the first time of the J=1-0 and J=2-1 lines of Na^35^Cl and Na^37^Cl in several vibrational states. The hyperfine structure has been...

We recently reported the first identification of rotational transitions of methyl formate (HCOOCH_3_) in the second torsionally excited state toward Orion Kleinmann-Low (KL),...

In order to obtain accurate terahertz center frequencies for SO and its isotopologues, we have studied the absorption spectrum of SO, ^34^SO, and ^33^SO up to 2.5THz using...

The cyclopropenyl cation (c-C_3_H_3_^+^) is the smallest aromatic hydrocarbon molecule and considered to be a pivotal intermediate in ion-molecule reactions in space. An...

We have measured electron impact ionization from the ground state of Fe^9+^ and Fe^10+^ over the relative electron-ion collision energy ranges 200-1900eV and 250-1800eV,...

Two hundred and fifty-one ^12^C_2_D_2_ transitions have been measured in the 0.2-1.6THz region of its nu_5_-nu_4_ difference band and 202 of them were observed for the first...

We present Spitzer spectra of S stars, which are cool evolved stars with a C/O ratio near unity, some of which have enhanced s-process abundances. We present the detection of a...

Collisional rate coefficients for rotational transitions in C3H2 and SiC2 due to collisions with H2 molecules are calculated. The C3H2 has two distinct species, ortho and para,...

The tables display the total emission probabilities, the total dissociation probabilities and the mean kinetic energies released in the dissociation for the rovibronic levels of...

Using the semiclassical perturbation approach, we have calculated electron-, proton- and He II-impact line widths and shifts for 32 Zn I multiplets as a function of temperature...

Using the semiclassical perturbation approach, we have calculated electron-, proton-, He II-, Mg II-, Si II- and Fe II-impact line widths and shifts for 189 Ca I multiplets as a...