Results 81 to 90 of about 13,910 (212)

Sigma*-mediated electronic relaxation in 200nm photoexcited ammonia and heteroaromatics

open access: yesEPJ Web of Conferences, 2013
Time–resolved photoelectron spectra of ammonia display combination bands of the umbrella and stretching modes associated with the N–H coordinate of σ* relaxation. Time–resolved photodissociation studies determine timescales
Evans N. L., Yu H., Ullrich S.
doaj   +1 more source

Strong and selective isotope effect in the vacuum ultraviolet photodissociation branching ratios of carbon monoxide

open access: yesNature Communications, 2019
Carbon monoxide is the main C and O reservoir in interstellar media, where it undergoes photochemistry. The authors show that isotopic substitution affects not only its absorption. spectrum and photodissociation rates but also the branching ratio, key to
Pan Jiang   +4 more
doaj   +1 more source

The Molecular Cloud Life Cycle. I. Constraining H2 Formation and Dissociation Rates with Observations

open access: yesThe Astrophysical Journal
Molecular clouds (MCs) are the birthplaces of new stars in galaxies. A key component of MCs are photodissociation regions (PDRs), where far-ultraviolet radiation plays a crucial role in determining the gas’s physical and chemical state.
Shmuel Bialy   +11 more
doaj   +1 more source

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