The physical chemistry of mass-independent isotope effects and their observation in nature

MH Thiemens, S Chakraborty… - Annual Review of …, 2012 - annualreviews.org
Historically, the physical chemistry of isotope effects and precise measurements in samples
from nature have provided information on processes that could not have been obtained …

Energy deposition and primary chemical products in Titan's upper atmosphere

P Lavvas, M Galand, RV Yelle, AN Heays, BR Lewis… - Icarus, 2011 - Elsevier
Cassini results indicate that solar photons dominate energy deposition in Titan's upper
atmosphere. These dissociate and ionize nitrogen and methane and drive the subsequent …

Isotope selective photodissociation of N2 by the interstellar radiation field and cosmic rays

AN Heays, R Visser, R Gredel, W Ubachs… - Astronomy & …, 2014 - aanda.org
Context. Photodissociation of 14 N 2 and 14 N 15N occurs in interstellar clouds,
circumstellar envelopes, protoplanetary discs, and other environments due to ultraviolet …

Exospheres and atmospheric escape

RE Johnson, MR Combi, JL Fox, WH Ip, F Leblanc… - Comparative …, 2008 - Springer
Aeronomy is a description of the physics and chemistry of the upper atmospheres and
ionospheres of planetary bodies. In this chapter we consider those processes occurring in …

Photodissociation of interstellar N2

X Li, AN Heays, R Visser, W Ubachs, BR Lewis… - Astronomy & …, 2013 - aanda.org
Context. Molecular nitrogen is one of the key species in the chemistry of interstellar clouds
and protoplanetary disks, but its photodissociation under interstellar conditions has never …

Source of nitrogen isotope anomaly in HCN in the atmosphere of Titan

MC Liang, AN Heays, BR LEwIS… - The Astrophysical …, 2007 - iopscience.iop.org
The 14 N/15 N ratio for N 2 in the atmosphere of Titan was recently measured to be a factor
of 2 higher than the corresponding ratio for HCN. Using a one-dimensional photochemical …

[HTML][HTML] Nonadiabatic dynamics in a forest of coupled states: Electronic state branching in the VUV photodissociation of N2

N Gelfand, K Komarova, F Remacle… - The Journal of Chemical …, 2023 - pubs.aip.org
Multi-state electronic dynamics at higher excitation energies is needed for the understanding
of a variety of energy rich situations, including chemistry under extreme conditions, vacuum …

Diabatic Valence-Hole States in the C2 Molecule: “Putting Humpty Dumpty Together Again”

J Jiang, HZ Ye, K Nauta, T Van Voorhis… - The Journal of …, 2022 - ACS Publications
Despite the long history of spectroscopic studies of the C2 molecule, fundamental questions
about its chemical bonding are still being hotly debated. The complex electronic structure of …

Ion densities and composition of Titan's upper atmosphere derived from the Cassini Ion Neutral Mass Spectrometer: Analysis methods and comparison of measured …

KE Mandt, DA Gell, M Perry… - Journal of …, 2012 - Wiley Online Library
The Cassini Ion Neutral Mass Spectrometer (INMS) has measured both neutral and ion
species in Titan's upper atmosphere and ionosphere and the Enceladus plumes. Ion …

Rovibronic molecular line list for the N2 (C3Πu− B3Πg) second positive system

ER Jans - Journal of Quantitative Spectroscopy and Radiative …, 2024 - Elsevier
A line list for the N 2 second positive system, B 3 Π gC 3 Π u, has been compiled using the
PGOPHER spectral simulation software. The line list extends the number of vibrational …