ELFT HÍRADÓ

[Király Beáta <kiraly.beata AT atomki.hu>]

The radiation astrochemistry of sulphur 
in the interstellar medium and the outer Solar System 



by Duncan V. Mifsud (HUN-REN ATOMK) 



When: 2024-03-07 Thursday 11:00 AM 


Where: HUN-REN ATOMKI, lecture hall (Debrecen, Bem tér 18/c) 





Additional information: 
- Tea and cookies are offered before the seminar at 10:30 AM. 
- This seminar introduces the [ https://atomki.hu/articles/current | article 
of the month ] 2024/1: 



Sulphur ion implantation into O 2 , CO, and CO 2 ices: Implications for the 
formation of sulphur-bearing molecules in the Kuiper Belt, [ 
https://www.sciencedirect.com/science/article/pii/S0019103523005055 | Icarus 
411 (2024) 115926 ] . 








Abstract: 




The astrochemistry of sulphur presents many as yet unresolved challenges. In 
dense interstellar clouds, for instance, observed sulphur is depleted by up 
to three orders of magnitude compared to its expected cosmic abundance; 
whereas reasonable chemical mechanisms for the formation of even simple 
sulphuretted molecules on the surfaces of icy outer Solar System objects 
continue to elude researchers. In this talk, I shall present an overview of 
the current “state-of-the-science” with regards to sulphur astrochemistry 
before going on to discuss our laboratory’s efforts at further comprehending 
radiation-induced sulphur chemistry in astronomical environments. As part of 
this talk, I will highlight the physico-chemical effects of implanting 
sulphur ions in astrophysical ice analogues. 




--- 
Király Beáta, PhD 
HUN-REN ATOMKI / HUN-REN Atommagkutató Intézet 
C: 4026 Debrecen, Bem tér 18/c 
T: +36 52 509 200 
E: kiraly.beata AT atomki.hu 
W: [ http://www.atomki.hu/ | www.atomki.hu ]