Comparing the reflectivity of ungrouped carbonaceous chondrites with that of short period comets like 2P/Encke
Aims. The existence of asteroid complexes produced by the disruption of these comets suggests that evolved comets could also produce high-strength materials able to survive as meteorites. We chose as an example comet 2P/Encke, one of the largest object of the so-called Taurid complex. We compare the...
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ftdatacite:10.48550/arxiv.2007.06212 2023-05-15T13:38:35+02:00 Comparing the reflectivity of ungrouped carbonaceous chondrites with that of short period comets like 2P/Encke Tanbakouei, Safoura Trigo-Rodriguez, Josep M. blum, Jurgen Williams, Iwan Llorca, Jordi 2020 https://dx.doi.org/10.48550/arxiv.2007.06212 https://arxiv.org/abs/2007.06212 unknown arXiv https://dx.doi.org/10.1051/0004-6361/202037996 arXiv.org perpetual, non-exclusive license http://arxiv.org/licenses/nonexclusive-distrib/1.0/ Earth and Planetary Astrophysics astro-ph.EP FOS Physical sciences article-journal Article ScholarlyArticle Text 2020 ftdatacite https://doi.org/10.48550/arxiv.2007.06212 https://doi.org/10.1051/0004-6361/202037996 2022-03-10T15:28:04Z Aims. The existence of asteroid complexes produced by the disruption of these comets suggests that evolved comets could also produce high-strength materials able to survive as meteorites. We chose as an example comet 2P/Encke, one of the largest object of the so-called Taurid complex. We compare the reflectance spectrum of this comet with the laboratory spectra of some Antarctic ungrouped carbonaceous chondrites to investigate whether some of these meteorites could be associated with evolved comets. Methods. We compared the spectral behaviour of 2P/Encke with laboratory spectra of carbonaceous chondrites. Different specimens of the common carbonaceous chondrite groups do not match the overall features and slope of comet 2P/Encke. Trying anomalous carbonaceous chondrites, we found two meteorites, Meteorite Hills 01017 and Grosvenor Mountains 95551, which could be good proxies for the dark materials forming this short-period comet. We hypothesise that these two meteorites could be rare surviving samples, either from the Taurid complex or another compositionally similar body. In any case, it is difficult to get rid of the effects of terrestrial weathering in these Antarctic finds, and further studies are needed. Future sample return from the so-called dormant comets could be also useful to establish a ground truth on the materials forming evolved short-period comets. Results. As a natural outcome, we think that identifying good proxies of 2P/Encke-forming materials might have interesting implications for future sample-return missions to evolved, potentially dormant or extinct comets. To understand the compositional nature of evolved comets is particularly relevant in the context of the future mitigation of impact hazard from these dark and dangerous projectiles. : Accepted for publication in A&A on July 6, 2020 Article in Journal/Newspaper Antarc* Antarctic DataCite Metadata Store (German National Library of Science and Technology) Antarctic Grosvenor Mountains ENVELOPE(175.000,175.000,-85.667,-85.667) Meteorite Hills ENVELOPE(155.600,155.600,-79.667,-79.667) |
institution |
Open Polar |
collection |
DataCite Metadata Store (German National Library of Science and Technology) |
op_collection_id |
ftdatacite |
language |
unknown |
topic |
Earth and Planetary Astrophysics astro-ph.EP FOS Physical sciences |
spellingShingle |
Earth and Planetary Astrophysics astro-ph.EP FOS Physical sciences Tanbakouei, Safoura Trigo-Rodriguez, Josep M. blum, Jurgen Williams, Iwan Llorca, Jordi Comparing the reflectivity of ungrouped carbonaceous chondrites with that of short period comets like 2P/Encke |
topic_facet |
Earth and Planetary Astrophysics astro-ph.EP FOS Physical sciences |
description |
Aims. The existence of asteroid complexes produced by the disruption of these comets suggests that evolved comets could also produce high-strength materials able to survive as meteorites. We chose as an example comet 2P/Encke, one of the largest object of the so-called Taurid complex. We compare the reflectance spectrum of this comet with the laboratory spectra of some Antarctic ungrouped carbonaceous chondrites to investigate whether some of these meteorites could be associated with evolved comets. Methods. We compared the spectral behaviour of 2P/Encke with laboratory spectra of carbonaceous chondrites. Different specimens of the common carbonaceous chondrite groups do not match the overall features and slope of comet 2P/Encke. Trying anomalous carbonaceous chondrites, we found two meteorites, Meteorite Hills 01017 and Grosvenor Mountains 95551, which could be good proxies for the dark materials forming this short-period comet. We hypothesise that these two meteorites could be rare surviving samples, either from the Taurid complex or another compositionally similar body. In any case, it is difficult to get rid of the effects of terrestrial weathering in these Antarctic finds, and further studies are needed. Future sample return from the so-called dormant comets could be also useful to establish a ground truth on the materials forming evolved short-period comets. Results. As a natural outcome, we think that identifying good proxies of 2P/Encke-forming materials might have interesting implications for future sample-return missions to evolved, potentially dormant or extinct comets. To understand the compositional nature of evolved comets is particularly relevant in the context of the future mitigation of impact hazard from these dark and dangerous projectiles. : Accepted for publication in A&A on July 6, 2020 |
format |
Article in Journal/Newspaper |
author |
Tanbakouei, Safoura Trigo-Rodriguez, Josep M. blum, Jurgen Williams, Iwan Llorca, Jordi |
author_facet |
Tanbakouei, Safoura Trigo-Rodriguez, Josep M. blum, Jurgen Williams, Iwan Llorca, Jordi |
author_sort |
Tanbakouei, Safoura |
title |
Comparing the reflectivity of ungrouped carbonaceous chondrites with that of short period comets like 2P/Encke |
title_short |
Comparing the reflectivity of ungrouped carbonaceous chondrites with that of short period comets like 2P/Encke |
title_full |
Comparing the reflectivity of ungrouped carbonaceous chondrites with that of short period comets like 2P/Encke |
title_fullStr |
Comparing the reflectivity of ungrouped carbonaceous chondrites with that of short period comets like 2P/Encke |
title_full_unstemmed |
Comparing the reflectivity of ungrouped carbonaceous chondrites with that of short period comets like 2P/Encke |
title_sort |
comparing the reflectivity of ungrouped carbonaceous chondrites with that of short period comets like 2p/encke |
publisher |
arXiv |
publishDate |
2020 |
url |
https://dx.doi.org/10.48550/arxiv.2007.06212 https://arxiv.org/abs/2007.06212 |
long_lat |
ENVELOPE(175.000,175.000,-85.667,-85.667) ENVELOPE(155.600,155.600,-79.667,-79.667) |
geographic |
Antarctic Grosvenor Mountains Meteorite Hills |
geographic_facet |
Antarctic Grosvenor Mountains Meteorite Hills |
genre |
Antarc* Antarctic |
genre_facet |
Antarc* Antarctic |
op_relation |
https://dx.doi.org/10.1051/0004-6361/202037996 |
op_rights |
arXiv.org perpetual, non-exclusive license http://arxiv.org/licenses/nonexclusive-distrib/1.0/ |
op_doi |
https://doi.org/10.48550/arxiv.2007.06212 https://doi.org/10.1051/0004-6361/202037996 |
_version_ |
1766108431173812224 |