Ozone production in electron irradiated CO 2: O 2 ices

DV Mifsud, Z Kaňuchová, S Ioppolo… - Physical Chemistry …, 2022 - pubs.rsc.org
The detection of ozone (O3) in the surface ices of Ganymede, Jupiter's largest moon, and of
the Saturnian moons Rhea and Dione, has motivated several studies on the route of …

Vacuum ultraviolet photoabsorption spectroscopy of space-related ices: 1 keV electron irradiation of nitrogen-and oxygen-rich ices

S Ioppolo, Z Kaňuchová, RL James, A Dawes… - Astronomy & …, 2020 - aanda.org
Context. Molecular oxygen, nitrogen, and ozone have been detected on some satellites of
Saturn and Jupiter, as well as on comets. They are also expected to be present in ice-grain …

Methyl acetate and its singly deuterated isotopomers in the interstellar medium

A Das, L Majumdar, D Sahu, P Gorai… - The Astrophysical …, 2015 - iopscience.iop.org
ABSTRACT Methyl acetate (${\mathrm {CH}} _ {3}{\mathrm {COOCH}} _ {3} $) has been
recently observed by the IRAM 30 m radio telescope in Orion, though the presence of its …

Visible and infrared spectra of the solids α- and β-O2 at 9–30 K

JI Lo, HC Lu, WH Hung, JF Ogilvie… - Monthly Notices of the …, 2023 - academic.oup.com
To establish the spectroscopy of the solids α-and β-oxygen, we measured the thermal
ramping spectra of the solid O2 in visible and near-infrared (near-IR) wavelength range 450 …

Visible, near-infrared and mid-infrared spectra of solid O2 at 6–33 K

JI Lo, HC Lu, WH Hung, JF Ogilvie… - Monthly Notices of the …, 2022 - academic.oup.com
We report spectra in the visible and near-infrared wavelength range 350–1155 nm and in
the mid-infrared range 500–5000 cm–1 (2–20 m) of molecular oxygen at temperatures 6–33 …

Photoabsorption spectra of solid O2 in ultraviolet and far-vacuum ultraviolet region at 9–30 K

JI Lo, HC Lu, WH Hung, B Sivaraman… - Monthly Notices of …, 2024 - academic.oup.com
We report ultraviolet and far-vacuum ultraviolet (FUV) absorption spectra of solid molecular
oxygen recorded over the wavelength region 110–365 nm for temperatures between 9 and …

Ultraviolet spectrum reveals the presence of ozone on Jupiter's moon Callisto

R Ramachandran, JK Meka, KK Rahul, W Khan, JI Lo… - Icarus, 2024 - Elsevier
Sulphur dioxide (SO 2) is known to be present on Callisto. In this paper, we studied the
chemical evolution of SO 2 astrochemical ice induced by irradiation using 9 eV (137.7 nm) …

A new method for simulating photoprocesses in astrochemical models

E Mullikin, H Anderson, N O'Hern… - The Astrophysical …, 2021 - iopscience.iop.org
We propose a new model for treating solid-phase photoprocesses in interstellar ice analogs.
In this approach, photoionization and photoexcitation are included in more detail, and the …

Possible detection of hydrazine on Saturn's moon Rhea

M Elowitz, B Sivaraman, A Hendrix, JI Lo, SL Chou… - Science …, 2021 - science.org
We present the first analysis of far-ultraviolet reflectance spectra of regions on Rhea's
leading and trailing hemispheres collected by the Cassini Ultraviolet Imaging Spectrograph …

Vacuum ultraviolet photoabsorption spectra of an in-situ synthesized peptide precursor: hydroxylamine on a cold astrochemical dust analogue

R Thombre, D Gupta, S Pavithraa, JI Lo… - The European Physical …, 2022 - Springer
The recent discovery of hydroxylamine (NH2OH) molecule in the interstellar medium
emphasizes the need to study the molecule in laboratory astrochemical ice analogues …