Home page of
Arnold I. Boothroyd:
Stellar evolution and nucleosynthesis: RGB Cool Bottom Processing, AGB Evolution and Hot Bottom Burning, Solar Models and Neutrinos, Helioseismology, Non-standard Solar Models, Stellar Opacities and Equation of State (last updated 7 Sep 2007)
HI mapping at intermediate Galactic latitude (GHIGLS):
deep Green Bank Telescope surveys of 21-cm line emission in 37 targeted fields
(see the GHIGLS Data Repository).
The VLA Galactic Plane Survey (VGPS): A combined interferometer + single-dish survey of 21-cm (1420 MHz) line emission from neutral atomic hydrogen (HI) in the Galaxy (see the VGPS website, and the CGPS page of the Canadian Astronomy Data Centre [CADC]). The VGPS is a component of the International Galactic Plane Survey (see the IGPS website).
Molecular Hydrogen in the Interstellar Medium: H4 (H2+H2), H3 (H2+H), and HeH2 (He+H2, He+H): see also Peter Martin and Margot Mandy
Here are some papers/preprints, also data and Fortran programs. Most papers are available as PDF files and/or as gzip-compressed PostScript files (with embedded figures).