Vacuum ultraviolet photoabsorption spectroscopy of space-related ices: Formation and destruction of solid carbonic acid upon 1 keV electron irradiation

• Published in: Astronomy & Astrophysics
• Main Authors: Ioppolo, Sergio, Kanuchová, Z., James, Rachel L., Dawes, Anita, Ryabov, A., Dezalay, J., Jones, Nykola C., Hoffmann, Søren Vrønning, Mason, Nigel J., Strazzulla, G.
• Format: Article in Journal/Newspaper
• Language: English
• Published: 2021
• Subjects: Astrochemistry; Methods: laboratory: molecular; Molecular processes; Planets and satellites: surfaces; Techniques: spectroscopic; Ultraviolet: planetary systems; Jupiter; Webb; Carbonic acid
• Online Access: https://pure.au.dk/portal/da/publications/vacuum-ultraviolet-photoabsorption-spectroscopy-of-spacerelated-ices-formation-and-destruction-of-solid-carbonic-acid-upon-1-kev-electron-irradiation(2778202d-2447-438e-8abd-d7a1a7e709ee).html; https://doi.org/10.1051/0004-6361/202039184; http://www.scopus.com/inward/record.url?scp=85101577513&partnerID=8YFLogxK; https://arxiv.org/pdf/2012.14863.pdf

Context. Carbonic acid (H2CO3) is a weak acid relevant to astrobiology which, to date, remains undetected in space. Experimental work has shown that the β-polymorph of H2CO3 forms under space relevant conditions through energetic (UV photon, electron, and cosmic ray) processing of CO2- and H2O-rich...