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Abstract Details

(2020) Discriminating Abiotic and Biotic Chemistry on Active Ocean Worlds

Klenner F, Postberg F, Hillier J, Khawaja N, Dannenmann M, Cable ML & Abel B

https://doi.org/10.46427/gold2020.1334

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01c: Plenary Hall, View in program

Listed below are questions that have been submitted by the community that the author will try and cover in their presentation. To submit a question, ensure you are signed in to the website. Authors or session conveners approve questions before they are displayed here.

Submitted by My Riebe on
Could you explain a bit more how one can make the distinction between abiotic and biotic signatures in these spectra?
We investigated mixtures of potential biomolecules at abundance ratios representative for either abiotic or biotic chemistry. The peak patterns in the resulting mass spectra of the abiotic mixtures have very different appearances compared to the mass spectra of the biotic mixtures. In this way, we can clearly distinguish between abiotic and biotic signatures in the mass spectra. You nicely see that for example on slide 16 "Fatty acids in abiotic and biotic abundance ratios".

Submitted by My Riebe on
Is there a mission being planned for this? What would the time frame be?
A mission planned for this is Europa Clipper. The spacecraft flying to Jupiter's moon Europa carries a suitable mass spectrometer for the detection of potential biomolecules. Launch is scheduled for 2024.

Submitted by Tomohiro Usui on
Could this-”type” of instrument identify organics in IDPs, cometary dust, and dust from comet-asteroid transition object?


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