Modification of ices by cosmic rays and solar wind

H Rothard, A Domaracka, P Boduch… - Journal of Physics B …, 2017 - iopscience.iop.org
Astrophysical ices are exposed to different radiation fields including photons, electrons and
ions. The latter stem from interstellar cosmic rays (CR), the solar and stellar winds, shock …

IR spectra and properties of solid acetone, an interstellar and cometary molecule

RL Hudson, PA Gerakines, RF Ferrante - Spectrochimica Acta Part A …, 2018 - Elsevier
Mid-infrared spectra of amorphous and crystalline acetone are presented along with
measurements of the refractive index and density for both forms of the compound. Infrared …

Single event burnout hardening of enhancement mode HEMTs with double field plates

Z Zhen, C Feng, Q Wang, D Niu… - IEEE Transactions on …, 2021 - ieeexplore.ieee.org
Single event burnout (SEB) of enhancement mode GaN high-electron mobility transistors
(HEMTs) under heavy ion irradiation is systematically studied based on simulations in this …

A mechanistic study on the formation of Acetone (CH3COCH3), Propanal (CH3CH2CHO), Propylene Oxide (c-CH3CHOCH2) along with their propenol enols …

SK Singh, NF Kleimeier, AK Eckhardt… - The Astrophysical …, 2022 - iopscience.iop.org
Carbonyl-bearing complex organic molecules (COMs) in the interstellar medium (ISM) are of
significant importance due to their role as potential precursors to biomolecules. Simple …

X-ray photolysis of CH3COCH3 ice: implications for the radiation effects of compact objects towards astrophysical ices

GA Carvalho, S Pilling - Monthly Notices of the Royal …, 2020 - academic.oup.com
In this study, we employed broad-band X-rays (6–2000 eV) to irradiate the frozen acetone
CH3COCH3, at the temperature of 12 K, with different photon fluences up to 2.7× 1018 …

Oxygen isotope equilibria of O-bearing organic compounds based on first principle quantum mechanical models, and implications for their use in the study of …

S Bhattacharjee, JM Eiler - Geochimica et Cosmochimica Acta, 2024 - Elsevier
We report theoretically calculated equilibrium oxygen isotopic fractionation factors (17 O/16
O, 18 O/16 O) between a set of representative O-bearing organic molecules and water, as …

High sensitivity monitoring of VOCs in air through FTIR spectroscopy using a multipass gas cell setup

A D'Arco, T Mancini, MC Paolozzi, S Macis, L Mosesso… - Sensors, 2022 - mdpi.com
Human exposure to Volatile Organic Compounds (VOCs) and their presence in indoor and
working environments is recognized as a serious health risk, causing impairments of varying …

Acetone–water interactions in crystalline and amorphous ice environments

MR Brann, SP Hansknecht, M Muir… - The Journal of Physical …, 2022 - ACS Publications
We present research that systematically examines acetone interacting with various D2O ices
of terrestrial and astrophysical interest using time-resolved, in situ reflection absorption …

Radiation effects in astrophysical ices

P Boduch, E Dartois, ALF de Barros… - Journal of Physics …, 2015 - iopscience.iop.org
The interaction of heavy ions with astrophysical ices was studied at different beamlines of
GANIL by infrared absorption spectroscopy. This allowed simulating in the laboratory the …

Radiolysis of Ices by Cosmic-Rays: CH4 and H2O Ices Mixtures Irradiated by 40 MeV 58Ni11+ Ions

C Mejía, ALF De Barros, H Rothard… - The Astrophysical …, 2020 - iopscience.iop.org
Physico-chemical modifications induced by swift heavy ions on methane-water (CH 4: H 2
O) ices at 15 K are analyzed. Ice films, at concentrations of (1: 3) and (1: 15), were irradiated …