Protracted Timescales for Nebular Processing of First-formed Solids in the Solar System
The calcium–aluminum-rich inclusions (CAIs) from chondritic meteorites are the first solids formed in the solar system. Rim formation around CAIs marks a time period in early solar system history when CAIs existed as free-floating objects and had not yet been incorporated into their chondritic paren...
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| Veröffentlicht in: | The Astrophysical journal 2023-03, Vol.946 (1), p.37 |
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| creator | Mane, Prajkta Bose, Maitrayee Wadhwa, Meenakshi Defouilloy, Céline |
| description | The calcium–aluminum-rich inclusions (CAIs) from chondritic meteorites are the first solids formed in the solar system. Rim formation around CAIs marks a time period in early solar system history when CAIs existed as free-floating objects and had not yet been incorporated into their chondritic parent bodies. The chronological data on these rims are limited. As seen in the limited number of analyzed inclusions, the rims formed nearly contemporaneously (i.e., |
| doi_str_mv | 10.3847/1538-4357/acb156 |
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26
Al–
26
Mg chronometer. Our data indicate that these rims formed ∼2–3 Ma after their host CAIs, most likely as a result of thermal processing in the solar nebula at that time. Our results imply that these CAIs remained as free-floating objects in the solar nebula for this duration. The formation of these rims coincides with the time interval during which the majority of chondrules formed, suggesting that some rims may have formed in transient heating events similar to those that produced most chondrules in the solar nebula. The results reported here additionally bolster recent evidence suggesting that chondritic materials accreted to form chondrite parent bodies later than the early-formed planetary embryos, and after the primary heat source, most likely
26
Al, had mostly decayed away.</description><identifier>ISSN: 0004-637X</identifier><identifier>EISSN: 1538-4357</identifier><identifier>DOI: 10.3847/1538-4357/acb156</identifier><language>eng</language><publisher>Philadelphia: The American Astronomical Society</publisher><subject>Aluminum ; Astrophysics ; Calcium-aluminum-rich inclusions ; Carbonaceous chondrites ; Cosmochemistry ; Measuring instruments ; Meteorite parent bodies ; Planet formation ; Protoplanetary disks ; Rims ; Solar nebula ; Solar system ; Transient heating</subject><ispartof>The Astrophysical journal, 2023-03, Vol.946 (1), p.37</ispartof><rights>2023. The Author(s). Published by the American Astronomical Society.</rights><rights>2023. The Author(s). Published by the American Astronomical Society. This work is published under http://creativecommons.org/licenses/by/4.0/ (the “License”). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License.</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><cites>FETCH-LOGICAL-c398t-900000e8ad8b694eddb26a6403413cdda50ac240a0ae35ee801e0bfe13df738b3</cites><orcidid>0000-0002-6918-2653 ; 0000-0001-9187-1255 ; 0000-0002-7978-6370</orcidid></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://iopscience.iop.org/article/10.3847/1538-4357/acb156/pdf$$EPDF$$P50$$Giop$$Hfree_for_read</linktopdf><link.rule.ids>314,776,780,860,2096,27901,27902,38867,53842</link.rule.ids></links><search><creatorcontrib>Mane, Prajkta</creatorcontrib><creatorcontrib>Bose, Maitrayee</creatorcontrib><creatorcontrib>Wadhwa, Meenakshi</creatorcontrib><creatorcontrib>Defouilloy, Céline</creatorcontrib><title>Protracted Timescales for Nebular Processing of First-formed Solids in the Solar System</title><title>The Astrophysical journal</title><addtitle>APJ</addtitle><addtitle>Astrophys. J</addtitle><description>The calcium–aluminum-rich inclusions (CAIs) from chondritic meteorites are the first solids formed in the solar system. Rim formation around CAIs marks a time period in early solar system history when CAIs existed as free-floating objects and had not yet been incorporated into their chondritic parent bodies. The chronological data on these rims are limited. As seen in the limited number of analyzed inclusions, the rims formed nearly contemporaneously (i.e., <300,000 yr after CAI formation) with the host CAIs. Here we present the relative ages of rims around two type B CAIs from NWA 8323 CV3 (oxidized) carbonaceous chondrite using the
26
Al–
26
Mg chronometer. Our data indicate that these rims formed ∼2–3 Ma after their host CAIs, most likely as a result of thermal processing in the solar nebula at that time. Our results imply that these CAIs remained as free-floating objects in the solar nebula for this duration. The formation of these rims coincides with the time interval during which the majority of chondrules formed, suggesting that some rims may have formed in transient heating events similar to those that produced most chondrules in the solar nebula. The results reported here additionally bolster recent evidence suggesting that chondritic materials accreted to form chondrite parent bodies later than the early-formed planetary embryos, and after the primary heat source, most likely
26
Al, had mostly decayed away.</description><subject>Aluminum</subject><subject>Astrophysics</subject><subject>Calcium-aluminum-rich inclusions</subject><subject>Carbonaceous chondrites</subject><subject>Cosmochemistry</subject><subject>Measuring instruments</subject><subject>Meteorite parent bodies</subject><subject>Planet formation</subject><subject>Protoplanetary disks</subject><subject>Rims</subject><subject>Solar nebula</subject><subject>Solar system</subject><subject>Transient heating</subject><issn>0004-637X</issn><issn>1538-4357</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2023</creationdate><recordtype>article</recordtype><sourceid>O3W</sourceid><sourceid>DOA</sourceid><recordid>eNp9kUFr3DAQhUVJoJuk9x4N7THuSpZkWccSss1CaAJJSG9iLI22WrwrV_Ie8u9rx2VzKZnLMKPvvREzhHxm9BtvhFoyyZtScKmWYFsm6w9kcWydkAWlVJQ1V78-krOct1NZab0gz_cpDgnsgK54DDvMFjrMhY-p-IntoYNUjITFnMN-U0RfrELKQzm-70bFQ-yCy0XYF8NvnKoRf3jJA-4uyKmHLuOnf_mcPK2uH69uytu7H-ur77el5boZSk2nwAZc09ZaoHNtVUMtKBeMW-dAUrCVoEABuURsKEPaemTcecWblp-T9ezrImxNn8IO0ouJEMxrI6aNgTQE26HRUvqKed0qi8IL3TqpOMhKU-lQV3T0-jJ79Sn-OWAezDYe0n78vqmUpkIqUYmRojNlU8w5oT9OZdRMpzDT3s20dzOfYpRczpIQ-zfPd_Cv_8Gh3xotasMMV6Z3nv8FatSWiQ</recordid><startdate>20230301</startdate><enddate>20230301</enddate><creator>Mane, Prajkta</creator><creator>Bose, Maitrayee</creator><creator>Wadhwa, Meenakshi</creator><creator>Defouilloy, Céline</creator><general>The American Astronomical Society</general><general>IOP Publishing</general><scope>O3W</scope><scope>TSCCA</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7TG</scope><scope>8FD</scope><scope>H8D</scope><scope>KL.</scope><scope>L7M</scope><scope>DOA</scope><orcidid>https://orcid.org/0000-0002-6918-2653</orcidid><orcidid>https://orcid.org/0000-0001-9187-1255</orcidid><orcidid>https://orcid.org/0000-0002-7978-6370</orcidid></search><sort><creationdate>20230301</creationdate><title>Protracted Timescales for Nebular Processing of First-formed Solids in the Solar System</title><author>Mane, Prajkta ; Bose, Maitrayee ; Wadhwa, Meenakshi ; Defouilloy, Céline</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c398t-900000e8ad8b694eddb26a6403413cdda50ac240a0ae35ee801e0bfe13df738b3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2023</creationdate><topic>Aluminum</topic><topic>Astrophysics</topic><topic>Calcium-aluminum-rich inclusions</topic><topic>Carbonaceous chondrites</topic><topic>Cosmochemistry</topic><topic>Measuring instruments</topic><topic>Meteorite parent bodies</topic><topic>Planet formation</topic><topic>Protoplanetary disks</topic><topic>Rims</topic><topic>Solar nebula</topic><topic>Solar system</topic><topic>Transient heating</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Mane, Prajkta</creatorcontrib><creatorcontrib>Bose, Maitrayee</creatorcontrib><creatorcontrib>Wadhwa, Meenakshi</creatorcontrib><creatorcontrib>Defouilloy, Céline</creatorcontrib><collection>IOP_英国物理学会OA刊</collection><collection>IOPscience (Open Access)</collection><collection>CrossRef</collection><collection>Meteorological & Geoastrophysical Abstracts</collection><collection>Technology Research Database</collection><collection>Aerospace Database</collection><collection>Meteorological & Geoastrophysical Abstracts - Academic</collection><collection>Advanced Technologies Database with Aerospace</collection><collection>Directory of Open Access Journals</collection><jtitle>The Astrophysical journal</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Mane, Prajkta</au><au>Bose, Maitrayee</au><au>Wadhwa, Meenakshi</au><au>Defouilloy, Céline</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Protracted Timescales for Nebular Processing of First-formed Solids in the Solar System</atitle><jtitle>The Astrophysical journal</jtitle><stitle>APJ</stitle><addtitle>Astrophys. J</addtitle><date>2023-03-01</date><risdate>2023</risdate><volume>946</volume><issue>1</issue><spage>37</spage><pages>37-</pages><issn>0004-637X</issn><eissn>1538-4357</eissn><abstract>The calcium–aluminum-rich inclusions (CAIs) from chondritic meteorites are the first solids formed in the solar system. Rim formation around CAIs marks a time period in early solar system history when CAIs existed as free-floating objects and had not yet been incorporated into their chondritic parent bodies. The chronological data on these rims are limited. As seen in the limited number of analyzed inclusions, the rims formed nearly contemporaneously (i.e., <300,000 yr after CAI formation) with the host CAIs. Here we present the relative ages of rims around two type B CAIs from NWA 8323 CV3 (oxidized) carbonaceous chondrite using the
26
Al–
26
Mg chronometer. Our data indicate that these rims formed ∼2–3 Ma after their host CAIs, most likely as a result of thermal processing in the solar nebula at that time. Our results imply that these CAIs remained as free-floating objects in the solar nebula for this duration. The formation of these rims coincides with the time interval during which the majority of chondrules formed, suggesting that some rims may have formed in transient heating events similar to those that produced most chondrules in the solar nebula. The results reported here additionally bolster recent evidence suggesting that chondritic materials accreted to form chondrite parent bodies later than the early-formed planetary embryos, and after the primary heat source, most likely
26
Al, had mostly decayed away.</abstract><cop>Philadelphia</cop><pub>The American Astronomical Society</pub><doi>10.3847/1538-4357/acb156</doi><tpages>22</tpages><orcidid>https://orcid.org/0000-0002-6918-2653</orcidid><orcidid>https://orcid.org/0000-0001-9187-1255</orcidid><orcidid>https://orcid.org/0000-0002-7978-6370</orcidid><oa>free_for_read</oa></addata></record> |
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| subjects | Aluminum Astrophysics Calcium-aluminum-rich inclusions Carbonaceous chondrites Cosmochemistry Measuring instruments Meteorite parent bodies Planet formation Protoplanetary disks Rims Solar nebula Solar system Transient heating |
| title | Protracted Timescales for Nebular Processing of First-formed Solids in the Solar System |
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