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Evidence of ammonium salts in comet 67P as explanation for the nitrogen depletion in cometary comae
Nature Astronomy, 2019Cometary 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 HCOOH, encountered in the interstellar medium as well ...
K. Altwegg +16 more
semanticscholar +1 more source
2015
Comets are low-density, kilometer-sized bodies of ices (mostly H2O, CO2, and CO) and dust (silicates, carbon, and organics), which orbit the Sun along elongated orbits. Cometary nuclei have not undergone significant warm-up processes, keeping the compositions resembling that of the protoplanetary cloud.
Kiselev, Nikolai +3 more
openaire +4 more sources
Comets are low-density, kilometer-sized bodies of ices (mostly H2O, CO2, and CO) and dust (silicates, carbon, and organics), which orbit the Sun along elongated orbits. Cometary nuclei have not undergone significant warm-up processes, keeping the compositions resembling that of the protoplanetary cloud.
Kiselev, Nikolai +3 more
openaire +4 more sources
Nature, 2000 Comet: An open‐source MS/MS sequence database search tool
Proteomics, 2013J. Eng, Tahmina A. Jahan, M. Hoopmann
semanticscholar +1 more source
The comet assay: a method to measure DNA damage in individual cells
Nature Protocols, 2006P. Olive, J. Banáth
semanticscholar +1 more source
A homogeneous nucleus for comet 67P/Churyumov–Gerasimenko from its gravity field
Nature, 2016M. Pätzold +15 more
semanticscholar +1 more source
The comet assay: a comprehensive review.
Mutation research, 1995D. Fairbairn, P. Olive, K. O’Neill
semanticscholar +1 more source
On the nucleus structure and activity of comet 67P/Churyumov-Gerasimenko
Science, 2015H. Sierks +65 more
semanticscholar +1 more source