Infrared Spectral Signatures of Nucleobases in Interstellar Ices I: Purines

Autor: Caroline Antunes Rosa, Alexandre Bergantini, Péter Herczku, Duncan V. Mifsud, Gergő Lakatos, Sándor T. S. Kovács, Béla Sulik, Zoltán Juhász, Sergio Ioppolo, Heidy M. Quitián-Lara, Nigel J. Mason, Claudia Lage

Publikováno v: Life, Vol 13, Iss 11, p 2208 (2023)

The purine nucleobases adenine and guanine are complex organic molecules that are essential for life. Despite their ubiquitous presence on Earth, purines have yet to be detected in observations of astronomical environments. This work therefore propos

Externí odkaz: https://doaj.org/article/d1b6439ca071405a8bbf300113bd984a

Bombardment of CO Ice by Cosmic Rays. I. Experimental Insights into the Microphysics of Molecule Destruction and Sputtering

Autor: Alexei V. Ivlev, Barbara M. Giuliano, Zoltán Juhász, Péter Herczku, Béla Sulik, Duncan V. Mifsud, Sándor T. S. Kovács, K. K. Rahul, Richárd Rácz, Sándor Biri, István Rajta, István Vajda, Nigel J. Mason, Sergio Ioppolo, Paola Caselli

Publikováno v: The Astrophysical Journal, Vol 944, Iss 2, p 181 (2023)

We present a dedicated experimental study of microscopic mechanisms controlling radiolysis and sputtering of astrophysical ices upon bombardment by cosmic-ray ions. Such ions are slowed down owing to inelastic collisions with bound electrons, resulti

Externí odkaz: https://doaj.org/article/ae705b2106c0457a8e6ba92d55b5d721

Ozone Production in Electron Irradiated CO2:O2 Ices

Autor: Duncan V. Mifsud, Zuzana Kaňuchová, Sergio Ioppolo, Péter Herczku, Alejandra Traspas Muiña, Béla Sulik, K. K. Rahul, Sándor T. S. Kovács, Perry A. Hailey, Robert W. McCullough, Nigel J. Mason, Zoltán Juhász

Publikováno v: Mifsud, D V, Kaňuchová, Z, Ioppolo, S, Herczku, P, Traspas Muiña, A, Sulik, B, Rahul, K K, Kovács, S T S, Hailey, P A, McCullough, R W, Mason, N J & Juhász, Z 2022, ' Ozone production in electron irradiated CO2:O2 ices ', Physical Chemistry Chemical Physics, vol. 24, no. 30, pp. 18169-18178 . https://doi.org/10.1039/d2cp01535h
Mifsud, D V, Kaňuchová, Z, Ioppolo, S, Herczku, P, Traspas Muiña, A, Sulik, B, Rahul, K K, Kovács, S T S, Hailey, P A, McCullough, R W, Mason, N J & Juhász, Z 2022, ' Ozone Production in Electron Irradiated CO2:O2 Ices ', Physical Chemistry Chemical Physics . < http://adsabs.harvard.edu/abs/2022arXiv220710453M >
Aarhus University
Mifsud, D V, Kaňuchová, Z, Ioppolo, S, Herczku, P, Traspas Muiña, A, Sulik, B, Rahul, K K, Kovács, S T S, Hailey, P A, McCullough, R W, Mason, N J & Juhász, Z 2022, ' Ozone production in electron irradiated CO 2 :O 2 ices ', Physical Chemistry Chemical Physics, no. 30, pp. 18169-18178 . https://doi.org/10.1039/d2cp01535h

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 formation of this species. Previous studies have successfully quantified tren

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e4ea78579c7331c4bda46604796d8384
http://arxiv.org/abs/2207.10453

Formation and fate of methyl formate in space upon ion irradiation and its astrophysical relevance

Autor: Alejandra Traspas Muiña, Sergio Ioppolo, Péter Herczku, Zoltán Juhász, Sándor T. S . Kovács, Duncan V. Mifsud, Zuzana Kaňuchová, Nigel Mason, Robert McCullough, Béla Sulik

The Universe is molecular in nature, as over 200 molecules have been detected in the gas-phase in the interstellar and circumstellar medium (ISM/CSM). Starting from molecular hydrogen, many species including H2O, CO2, NH3, CH4, CH3OH, and other compl

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::752b6a971ba1ba954595c98b6c9c992b
https://doi.org/10.5194/epsc2021-32