Evidence for Magnetically‐Driven Accretion in the Distal Solar System

Paleomagnetic measurements of meteorites indicate that magnetic fields existed in the inner solar nebula capable of driving accretion at rates similar to those observed for young stellar objects with protoplanetary disks. However, the field strength in the solar system beyond ∼7 astronomical units (...

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Bibliographic Details
Published in:AGU advances 2024-12, Vol.5 (6), p.n/a
Main Authors: Mansbach, Elias N., Weiss, Benjamin P., Lima, Eduardo A., Sowell, Michael, Kirschvink, Joseph L., Fu, Roger R., Cambioni, Saverio, Bai, Xue‐Ning, Ream, Jodie B., Anai, Chisato, Kobayashi, Atsuko, Hidaka, Hironori
Format: Article
Language:English
Subjects:
Accretion
Asteroids
Magnetic fields
Meteors & meteorites
Paleomagnetism
Ryugu
solar nebula
Solar system
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Summary:Paleomagnetic measurements of meteorites indicate that magnetic fields existed in the inner solar nebula capable of driving accretion at rates similar to those observed for young stellar objects with protoplanetary disks. However, the field strength in the solar system beyond ∼7 astronomical units (AU) and its role in accretion remain poorly constrained. Returned samples from asteroid (162173) Ryugu offer the possibility of determining the nebular field intensity in this distal region. Here, we report paleomagnetic studies of three Ryugu particles which reveal that alteration occurred in the presence of a null or relatively weak (
ISSN:2576-604X
2576-604X
DOI:10.1029/2024AV001396