FRINK Linked Data Fragments server

Matches in SemOpenAlex for { <https://semopenalex.org/work/W2969777310> ?p ?o ?g. }

• W2969777310 endingPage "134" @default.
• W2969777310 startingPage "112" @default.
• W2969777310 abstract "Sample return missions to Phobos are the subject of future exploration plans. Given the proximity of Phobos to Mars, Mars' potential to have supported life, and the possibility of material transfer from Mars to Phobos, careful consideration of planetary protection is required. If life exists, or ever existed, on Mars, there is a possibility that material carrying organisms could be present on Phobos and be collected by a sample return mission such as the Japanese Martian Moons eXplorer (MMX). Here we describe laboratory experiments, theoretical modelling and statistical analysis undertaken to quantify whether the likelihood of a sample from Phobos material containing unsterilized material transferred from Mars is less than 10-6, the threshold to transition between restricted and unrestricted sample return classification for planetary protection. We have created heat, impact and radiation sterilization models based on the Phobos environment, and through statistical analyses investigated the level of sterilization expected for martian material transferred to Phobos. These analyses indicate that radiation is the major sterilization factor, sterilizing the Phobos surface over timescales of millions of years. The specific events of most relevance in the Phobos sample return context are the 'young' cratering events on Mars that result in Zunil-sized craters, which can emplace a large mass of martian material on Phobos, in a short period of time, thus inhibiting the effects of radiation sterilization. Major unknowns that cannot yet be constrained accurately enough are found to drive the results - the most critical being the determination of exact crater ages to statistical certainty, and the initial biological loading on Mars prior to transfer. We find that, when taking a conservative perspective and assuming the best-case scenario for organism survival, for a 100 g sample of the Phobos regolith to be below the planetary protection requirement for unrestricted sample return, the initial biological loading on Mars must be <8.2 × 103cfu kg-1. For the planned MMX mission, a ∼10 g sample to be obtained from a 25-30 mm diameter core as planned would require an initial martian biological loading to be <1.6 × 104cfu kg-1, in order to remain compliant with the planetary protection threshold." @default.
• W2969777310 created "2019-08-29" @default.
• W2969777310 creator A5015325971 @default.
• W2969777310 creator A5017004982 @default.
• W2969777310 creator A5028137454 @default.
• W2969777310 creator A5032326291 @default.
• W2969777310 creator A5033313111 @default.
• W2969777310 creator A5034550807 @default.
• W2969777310 creator A5035236774 @default.
• W2969777310 creator A5036300518 @default.
• W2969777310 creator A5052088305 @default.
• W2969777310 creator A5063817347 @default.
• W2969777310 creator A5070309477 @default.
• W2969777310 creator A5083210929 @default.
• W2969777310 creator A5085925235 @default.
• W2969777310 date "2019-11-01" @default.
• W2969777310 modified "2023-09-27" @default.
• W2969777310 title "The transfer of unsterilized material from Mars to Phobos: Laboratory tests, modelling and statistical evaluation" @default.
• W2969777310 cites W1970341070 @default.
• W2969777310 cites W1981434325 @default.
• W2969777310 cites W1993772166 @default.
• W2969777310 cites W1999917630 @default.
• W2969777310 cites W2005948436 @default.
• W2969777310 cites W2024142864 @default.
• W2969777310 cites W2050361979 @default.
• W2969777310 cites W2052013878 @default.
• W2969777310 cites W2059915769 @default.
• W2969777310 cites W2067643634 @default.
• W2969777310 cites W2072912810 @default.
• W2969777310 cites W2089720636 @default.
• W2969777310 cites W2099032301 @default.
• W2969777310 cites W2104787166 @default.
• W2969777310 cites W2115219845 @default.
• W2969777310 cites W2120464101 @default.
• W2969777310 cites W2130798972 @default.
• W2969777310 cites W2154690237 @default.
• W2969777310 cites W2170887794 @default.
• W2969777310 cites W2197399475 @default.
• W2969777310 cites W2469116716 @default.
• W2969777310 cites W2567323614 @default.
• W2969777310 doi "https://doi.org/10.1016/j.lssr.2019.08.002" @default.
• W2969777310 hasPubMedId "https://pubmed.ncbi.nlm.nih.gov/31791600" @default.
• W2969777310 hasPublicationYear "2019" @default.
• W2969777310 type Work @default.
• W2969777310 sameAs 2969777310 @default.
• W2969777310 citedByCount "3" @default.
• W2969777310 countsByYear W29697773102021 @default.
• W2969777310 countsByYear W29697773102023 @default.
• W2969777310 crossrefType "journal-article" @default.
• W2969777310 hasAuthorship W2969777310A5015325971 @default.
• W2969777310 hasAuthorship W2969777310A5017004982 @default.
• W2969777310 hasAuthorship W2969777310A5028137454 @default.
• W2969777310 hasAuthorship W2969777310A5032326291 @default.
• W2969777310 hasAuthorship W2969777310A5033313111 @default.
• W2969777310 hasAuthorship W2969777310A5034550807 @default.
• W2969777310 hasAuthorship W2969777310A5035236774 @default.
• W2969777310 hasAuthorship W2969777310A5036300518 @default.
• W2969777310 hasAuthorship W2969777310A5052088305 @default.
• W2969777310 hasAuthorship W2969777310A5063817347 @default.
• W2969777310 hasAuthorship W2969777310A5070309477 @default.
• W2969777310 hasAuthorship W2969777310A5083210929 @default.
• W2969777310 hasAuthorship W2969777310A5085925235 @default.
• W2969777310 hasBestOaLocation W29697773101 @default.
• W2969777310 hasConcept C121332964 @default.
• W2969777310 hasConcept C179537507 @default.
• W2969777310 hasConcept C2776219924 @default.
• W2969777310 hasConcept C2778600265 @default.
• W2969777310 hasConcept C39432304 @default.
• W2969777310 hasConcept C45095769 @default.
• W2969777310 hasConcept C68702407 @default.
• W2969777310 hasConcept C78949437 @default.
• W2969777310 hasConcept C83260615 @default.
• W2969777310 hasConcept C87355193 @default.
• W2969777310 hasConceptScore W2969777310C121332964 @default.
• W2969777310 hasConceptScore W2969777310C179537507 @default.
• W2969777310 hasConceptScore W2969777310C2776219924 @default.
• W2969777310 hasConceptScore W2969777310C2778600265 @default.
• W2969777310 hasConceptScore W2969777310C39432304 @default.
• W2969777310 hasConceptScore W2969777310C45095769 @default.
• W2969777310 hasConceptScore W2969777310C68702407 @default.
• W2969777310 hasConceptScore W2969777310C78949437 @default.
• W2969777310 hasConceptScore W2969777310C83260615 @default.
• W2969777310 hasConceptScore W2969777310C87355193 @default.
• W2969777310 hasFunder F4320318240 @default.
• W2969777310 hasLocation W29697773101 @default.
• W2969777310 hasLocation W29697773102 @default.
• W2969777310 hasLocation W29697773103 @default.
• W2969777310 hasOpenAccess W2969777310 @default.
• W2969777310 hasPrimaryLocation W29697773101 @default.
• W2969777310 hasRelatedWork W1502352195 @default.
• W2969777310 hasRelatedWork W2009495391 @default.
• W2969777310 hasRelatedWork W2027337857 @default.
• W2969777310 hasRelatedWork W2161172589 @default.
• W2969777310 hasRelatedWork W2320135602 @default.
• W2969777310 hasRelatedWork W2325478575 @default.
• W2969777310 hasRelatedWork W3008431612 @default.
• W2969777310 hasRelatedWork W3154693760 @default.
• W2969777310 hasRelatedWork W4200212805 @default.

• next