On the origin of molecular oxygen in cometary comae
Sign Up to like & getrecommendations! Published in 2018 at "Nature Communications"
DOI: 10.1038/s41467-018-04972-5
Abstract: We have used generous assumptions in terms of production rates and ion fluxes to assess the production of O2- through ER reactions as a mechanism to explain Rosetta observations. Even with these assumptions, the amount… read more here.
Keywords: oxygen; origin molecular; rosina dfms; cometary comae ... See more keywords
Evidence of ammonium salts in comet 67P as explanation for the nitrogen depletion in cometary comae
Sign Up to like & getrecommendations! Published in 2019 at "Nature Astronomy"
DOI: 10.1038/s41550-019-0991-9
Abstract: Cometary comae are generally depleted in nitrogen. The main carriers for volatile nitrogen in comets are NH 3 and HCN. It is known that ammonia readily combines with many acids, such as HCN, HNCO and… read more here.
Keywords: nitrogen; ammonium salts; cometary comae; comet 67p ... See more keywords