new branch: Laboratory astrophysics

[katieefrey]

First pass at a new branch, two organizational structure ideas so far... (see tabs on attached spreadsheet)

feedback/discussion wanted

lab_astro_v1x2.xlsx

[katieefrey]

Newest version, see the tab "option 2" on the attached file.

lab_astro_v3.xlsx

[katieefrey]

Version 8, attached, is being implemented in 3.0.0.

lab_astro_v8.xlsx

[katieefrey]

List of all concepts added or modified by accepting this branch, added to make searching for provenance easier in the future:

Abundance ratios Astrobiology Astrochemistry Atomic data benchmarking Atomic physics Biomarkers Charge exchange ionization Charge exchange recombination Chemical abundances CII region Collision processes Cosmic abundances Cosmochemistry Cosmochronology De-excitation rates Dielectronic reombination Diffuse interstellar bands Electron impact ionization Excitation rates Experimental models Experimental techniques Frozen in elements Galactic abundances Galaxy abundances Ice destruction Ice formation Interdisciplinary astronomy Intergalactic abundances Interstellar abundances Ionization Isotope shifts Isotopic abundances Laboratory astrophysics Metallicity Molecular physics Molecule destruction Molecule formation Natural decay Nuclear abundances Nuclear physics Nuclear reaction cross sections Overabundances Particle physics Photoionization Plasma physics Polycyclic aromatic hydrocarbons Pre-biotic astrochemistry Radiative processes Radiative recombination Radical-radical recombination Reaction catalysts Reaction rates Recombination Solar abundances Solid matter physics Spectral line identification Spectral line lists Stellar abundances Theoretical models Theoretical techniques Transition probabilities Underabundances Xenobiology