... EMERGE FROM MOLECULAR CLOUD (Star-Birth Clouds in M16) This eerie, dark structure, resembling an imaginary sea serpent's head, is a column of cool molecular hydrogen gas (two atoms of hydrogen in each molecule) and dust that is an incubator for new stars ...
4. http://www.arcetri.astro.it/science/chianti/chianti_3.03/elements/al/al_3.html
... and Fontes, C. J., 1990, ADANDT, 44, 209. %oscillator strengths: hydrogenic values for 4f-5g %oscillator strengths: Wiese, W. L., Smith, M. W., and Glennon, B. M. Atomic Transition Probabilities, Vol I, Hydrogen through Neon, NSRDS-NBS-4 %energy levels ...
5. http://www.arcetri.astro.it/science/chianti/chianti_3.03/elements/mg/mg_2.html
... H., Zhang, H. L., and Fontes, C. J., 1990, ADANDT, 44, 209. %oscillator strengths: hydrogenic values for 4f-5g %oscillator strengths: Wiese, W. L., Smith, M. W., and Glennon, B. M. Atomic Transition Probabilities, Vol I, Hydrogen through Neon, NSRDS-NBS-4 ...
6. APOD: 2000 January 10 - Brown Sun Bubbling
... The above picture was taken in a specific color of light emitted by hydrogen gas called Hydrogen-alpha . ...
7. NGC 6334 I (Abstract)
... Shocked molecular hydrogen emission in the bipolar outflow NGC 6334 I . Abstract:. ... Two of these are aligned along the CO bipolar outflow, indicating that the hydrogen molecular emission is shock excited. ...
8. http://www.arcetri.astro.it/igm50/talks_all/crighton.pdf
... The Cosmic Neutral Hydrogen ! Mass Density at z=5 arXiv: 1506.02037 Neil Crighton Swinburne University ! ... Cosmological mass density of neutral hydrogen It is required to measure cosmological parameters via HI intensity mapping (e.g ...
9. CHIANTI: READ_ABUND.pro
... abund . An array containing the abundance of an element relative to hydrogen. ... by the atomic number Z-1, for example abund(0)=1.0, the abundance of hydrogen and abund(5)=the abundance of carbon (Z=6). ref ...
10. http://www.arcetri.astro.it/~palla/ANDREAIMMAGINI/ISM/M16Full.txt
... In this celestial case, it is especially dense clouds of molecular hydrogen gas (two atoms of hydrogen in each molecule) and dust that have survived longer than their surroundings in the face of a flood of ultraviolet light from hot, massive newborn stars ...