Paucity of Tagish Lake-like parent bodies in the Asteroid Belt and among Jupiter Trojans
International audience We present new results for ion irradiation experiments performed on fragments of the Tagish Lake (TL) meteorite. These experiments were focused on (a) quantifying the effect of the solar wind on spectral reflectance and (b) identifying the parent bodies of TL within the Astero...
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ftccsdartic:oai:HAL:hal-01439462v1 2023-05-15T18:30:04+02:00 Paucity of Tagish Lake-like parent bodies in the Asteroid Belt and among Jupiter Trojans Vernazza, P. Fulvio, D. Brunetto, R. Emery, J. P. Dukes, C. A. Cipriani, F. Witasse, O. Schaible, M. J. Zanda, B. Strazzulla, G. Baragiola, R. A. Laboratoire d'Astrophysique de Marseille (LAM) Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Aix Marseille Université (AMU)-Centre National d'Études Spatiales Toulouse (CNES) 2013-07 https://hal.archives-ouvertes.fr/hal-01439462 https://doi.org/10.1016/j.icarus.2013.04.019 en eng HAL CCSD Elsevier info:eu-repo/semantics/altIdentifier/doi/10.1016/j.icarus.2013.04.019 hal-01439462 https://hal.archives-ouvertes.fr/hal-01439462 doi:10.1016/j.icarus.2013.04.019 ISSN: 0019-1035 EISSN: 1090-2643 Icarus https://hal.archives-ouvertes.fr/hal-01439462 Icarus, Elsevier, 2013, 225 (1), pp.517--525. ⟨10.1016/j.icarus.2013.04.019⟩ [SDU.ASTR]Sciences of the Universe [physics]/Astrophysics [astro-ph] info:eu-repo/semantics/article Journal articles 2013 ftccsdartic https://doi.org/10.1016/j.icarus.2013.04.019 2021-10-24T09:15:09Z International audience We present new results for ion irradiation experiments performed on fragments of the Tagish Lake (TL) meteorite. These experiments were focused on (a) quantifying the effect of the solar wind on spectral reflectance and (b) identifying the parent bodies of TL within the Asteroid Belt and or Jupiter Trojans. In the visible and near-infrared, we observe a flattening and brightening of the reflectance with progressive irradiation; in the mid-infrared, we observe a small shift towards longer wavelengths of the main emission feature at 10 mu m consistent with what is observed in silicates, likely caused by amorphization. We evaluated possible parent bodies for Tagish Lake by comparing its total reflectance in the visible and spectral changes in the 0.4-25 mu m range with available measurements for main belt asteroids and Jupiter Trojans (asteroid data includes measurements from the WISE, SMASS and Spitzer surveys as well as IRTF observations). The low reflectance of TL compared to asteroid albedos shows that TL-like bodies are very rare among Jupiter Trojans (\textless0.02% of the total population) and that they exist in a very small proportion (\textless4.5% of the total population) among main belt asteroids, where only one asteroid, 368 Haidea, was found to match both TL's spectrum and reflectance. Additionally, TL-like bodies would be preferentially located in the outer Asteroid Belt (2.85-3.3 AU) further away from the Sun than the average current location of most Ch- and Cgh-types, these objects being the likely parent bodies of CM-type chondritic meteorites. It thus appears that the location of both meteorite groups (TL and CM) must be different, with TL having formed further away from the Sun than CMs. We find that there are by far more parent bodies of CM than TL-like meteorites, which still remains to be understood. (C) 2013 Elsevier Inc. All rights reserved. Article in Journal/Newspaper Tagish Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe) Jupiter ENVELOPE(101.133,101.133,-66.117,-66.117) Tagish ENVELOPE(-134.272,-134.272,60.313,60.313) Tagish Lake ENVELOPE(-134.233,-134.233,59.717,59.717) Icarus 225 1 517 525 |
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Open Polar |
collection |
Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe) |
op_collection_id |
ftccsdartic |
language |
English |
topic |
[SDU.ASTR]Sciences of the Universe [physics]/Astrophysics [astro-ph] |
spellingShingle |
[SDU.ASTR]Sciences of the Universe [physics]/Astrophysics [astro-ph] Vernazza, P. Fulvio, D. Brunetto, R. Emery, J. P. Dukes, C. A. Cipriani, F. Witasse, O. Schaible, M. J. Zanda, B. Strazzulla, G. Baragiola, R. A. Paucity of Tagish Lake-like parent bodies in the Asteroid Belt and among Jupiter Trojans |
topic_facet |
[SDU.ASTR]Sciences of the Universe [physics]/Astrophysics [astro-ph] |
description |
International audience We present new results for ion irradiation experiments performed on fragments of the Tagish Lake (TL) meteorite. These experiments were focused on (a) quantifying the effect of the solar wind on spectral reflectance and (b) identifying the parent bodies of TL within the Asteroid Belt and or Jupiter Trojans. In the visible and near-infrared, we observe a flattening and brightening of the reflectance with progressive irradiation; in the mid-infrared, we observe a small shift towards longer wavelengths of the main emission feature at 10 mu m consistent with what is observed in silicates, likely caused by amorphization. We evaluated possible parent bodies for Tagish Lake by comparing its total reflectance in the visible and spectral changes in the 0.4-25 mu m range with available measurements for main belt asteroids and Jupiter Trojans (asteroid data includes measurements from the WISE, SMASS and Spitzer surveys as well as IRTF observations). The low reflectance of TL compared to asteroid albedos shows that TL-like bodies are very rare among Jupiter Trojans (\textless0.02% of the total population) and that they exist in a very small proportion (\textless4.5% of the total population) among main belt asteroids, where only one asteroid, 368 Haidea, was found to match both TL's spectrum and reflectance. Additionally, TL-like bodies would be preferentially located in the outer Asteroid Belt (2.85-3.3 AU) further away from the Sun than the average current location of most Ch- and Cgh-types, these objects being the likely parent bodies of CM-type chondritic meteorites. It thus appears that the location of both meteorite groups (TL and CM) must be different, with TL having formed further away from the Sun than CMs. We find that there are by far more parent bodies of CM than TL-like meteorites, which still remains to be understood. (C) 2013 Elsevier Inc. All rights reserved. |
author2 |
Laboratoire d'Astrophysique de Marseille (LAM) Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Aix Marseille Université (AMU)-Centre National d'Études Spatiales Toulouse (CNES) |
format |
Article in Journal/Newspaper |
author |
Vernazza, P. Fulvio, D. Brunetto, R. Emery, J. P. Dukes, C. A. Cipriani, F. Witasse, O. Schaible, M. J. Zanda, B. Strazzulla, G. Baragiola, R. A. |
author_facet |
Vernazza, P. Fulvio, D. Brunetto, R. Emery, J. P. Dukes, C. A. Cipriani, F. Witasse, O. Schaible, M. J. Zanda, B. Strazzulla, G. Baragiola, R. A. |
author_sort |
Vernazza, P. |
title |
Paucity of Tagish Lake-like parent bodies in the Asteroid Belt and among Jupiter Trojans |
title_short |
Paucity of Tagish Lake-like parent bodies in the Asteroid Belt and among Jupiter Trojans |
title_full |
Paucity of Tagish Lake-like parent bodies in the Asteroid Belt and among Jupiter Trojans |
title_fullStr |
Paucity of Tagish Lake-like parent bodies in the Asteroid Belt and among Jupiter Trojans |
title_full_unstemmed |
Paucity of Tagish Lake-like parent bodies in the Asteroid Belt and among Jupiter Trojans |
title_sort |
paucity of tagish lake-like parent bodies in the asteroid belt and among jupiter trojans |
publisher |
HAL CCSD |
publishDate |
2013 |
url |
https://hal.archives-ouvertes.fr/hal-01439462 https://doi.org/10.1016/j.icarus.2013.04.019 |
long_lat |
ENVELOPE(101.133,101.133,-66.117,-66.117) ENVELOPE(-134.272,-134.272,60.313,60.313) ENVELOPE(-134.233,-134.233,59.717,59.717) |
geographic |
Jupiter Tagish Tagish Lake |
geographic_facet |
Jupiter Tagish Tagish Lake |
genre |
Tagish |
genre_facet |
Tagish |
op_source |
ISSN: 0019-1035 EISSN: 1090-2643 Icarus https://hal.archives-ouvertes.fr/hal-01439462 Icarus, Elsevier, 2013, 225 (1), pp.517--525. ⟨10.1016/j.icarus.2013.04.019⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1016/j.icarus.2013.04.019 hal-01439462 https://hal.archives-ouvertes.fr/hal-01439462 doi:10.1016/j.icarus.2013.04.019 |
op_doi |
https://doi.org/10.1016/j.icarus.2013.04.019 |
container_title |
Icarus |
container_volume |
225 |
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1 |
container_start_page |
517 |
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525 |
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1766213541440782336 |