62 citations · 289 across the 17 of their papers we have counts for
18 papers
Electron irradiation and temperature-programmed desorption of layered ethanolamine-water-methanol ices
Tara L. Stoib, Alejandro Guerrero-Caicedo, Duncan V. Mifsud +12
Ethanolamine (EtA) is a recently detected interstellar complex organic molecule and a potential precursor to more functionalised N-bearing species. We investigate the electron-driv…
An interstellar energetic and non-aqueous pathway to peptide formation
Alfred Thomas Hopkinson, Ann Mary Wilson, Joe Pitfield +13
The origin of the molecular building blocks of life is a central question in science. A few -amino acids such as glycine, the simplest proteinogenic amino acid, have been detect…
Hydroxylamine in Astrophysical Ices: IR Spectra and Cosmic Ray-Induced Radiolytic Chemistry
Belén Maté, Ramón J. Peláez, Germán Molpeceres +10
Gas-phase hydroxylamine (NHOH) has recently been detected within dense clouds in the interstellar medium. However, it is also likely present within interstellar ices, as well a…
Electron Irradiation of Crystalline Nitrous Oxide Ice at Low Temperatures: Applications to Outer Solar System Planetary Science
Duncan V. Mifsud, Sándor Góbi, Péter Herczku +5
The radiation chemistry and physics of solid N2O have been increasingly studied due to its potential presence on the surfaces of cold, outer Solar System bodies. However, to date,…
AQUILA: A Laboratory Facility for the Irradiation of Astrochemical Ice Analogues by keV Ions
R. Rácz, S. T. S. Kovács, G. Lakatos +11
The detection of various molecular species, including complex organic molecules relevant to biochemical and geochemical processes, in astronomical settings such as the interstellar…
Bombardment of CO ice by cosmic rays: I. Experimental insights into the microphysics of molecule destruction and sputtering
Alexei V. Ivlev, Barbara M. Giuliano, Zoltán Juhász +12
We present a dedicated experimental study of microscopic mechanisms controlling radiolysis and sputtering of astrophysical ices due to their bombardment by cosmic ray ions. Such io…
Proton and electron irradiations of CH4:H2O mixed ices
Duncan V. Mifsud, Péter Herczku, Béla Sulik +7
The organic chemistry occurring in interstellar environments may lead to the production of complex molecules that are relevant to the emergence of life. Therefore, in order to unde…
Sulfur Ion Implantations Into Condensed CO2: Implications for Europa
D. V. Mifsud, Z. Kaňuchová, P. Herczku +12
The ubiquity of sulfur ions within the Jovian magnetosphere has led to suggestions that the implantation of these ions into the surface of Europa may lead to the formation of SO2.…
Energetic Electron Irradiations of Amorphous and Crystalline Sulphur-Bearing Astrochemical Ices
Duncan V. Mifsud, Péter Herczku, Richárd Rácz +10
Laboratory experiments have confirmed that the radiolytic decay rate of astrochemical ice analogues is dependent upon the solid phase of the target ice, with some crystalline molec…
Ozone Production in Electron Irradiated CO2:O2 Ices
Duncan V. Mifsud, Zuzana Kaňuchová, Sergio Ioppolo +9
The detection of ozone (O3) in the surface ices of Ganymede, Jupiters largest moon, and of the Saturnian moons Rhea and Dione, has motivated several studies on the route of formati…
Laboratory Experiments on the Radiation Astrochemistry of Water Ice Phases
Duncan V. Mifsud, Perry A. Hailey, Péter Herczku +8
Water (H2O) ice is ubiquitous component of the universe, having been detected in a variety of interstellar and Solar System environments where radiation plays an important role in…
Comparative Electron Irradiations of Amorphous and Crystalline Astrophysical Ice Analogues
Duncan V. Mifsud, Perry A. Hailey, Péter Herczku +8
Laboratory studies of the radiation chemistry occurring in astrophysical ices have demonstrated the dependence of this chemistry on a number of experimental parameters. One experim…
Mid-IR and VUV Spectroscopic Characterisation of Thermally Processed and Electron Irradiated CO2 Astrophysical Ice Analogues
DV Mifsud, Z Kaňuchová, S Ioppolo +19
The astrochemistry of CO2 ice analogues has been a topic of intensive investigation due to the prevalence of CO2 throughout the interstellar medium and the Solar System, as well as…
Electron Irradiation and Thermal Chemistry Studies of Interstellar and Planetary Ice Analogues at the ICA Astrochemistry Facility
Duncan V. Mifsud, Zoltán Juhász, Péter Herczku +10
The modelling of molecular excitation and dissociation processes relevant to astrochemistry requires the validation of theories by comparison with data generated from laboratory ex…
The Ice Chamber for Astrophysics-Astrochemistry (ICA): A New Experimental Facility for Ion Impact Studies of Astrophysical Ice Analogues
Péter Herczku, Duncan V. Mifsud, Sergio Ioppolo +11
The Ice Chamber for Astrophysics-Astrochemistry (ICA) is a new laboratory end-station located at the Institute for Nuclear Research (Atomki) in Debrecen, Hungary. The ICA has been…
The Role of Terahertz and Far-IR Spectroscopy in Understanding the Formation and Evolution of Interstellar Prebiotic Molecules
Duncan V. Mifsud, Perry A. Hailey, Alejandra Traspas Muina +3
Stellar systems are often formed through the collapse of dense molecular clouds which, in turn, return copious amounts of atomic and molecular material to the interstellar medium.…
Systems Astrochemistry: A New Doctrine for Experimental Studies
Nigel J. Mason, Perry A. Hailey, Duncan V. Mifsud +1
Laboratory experiments play a key role in deciphering the chemistry of the interstellar medium (ISM) and the role that product complex organic molecules (COMs) may play in the orig…
Sulfur Ice Astrochemistry: A Review of Laboratory Studies
Duncan V. Mifsud, Zuzana Kanuchova, Peter Herczku +6
Sulfur is the tenth most abundant element in the universe and is known to play a significant role in biological systems. Accordingly, in recent years there has been increased inter…