Paleomagnetic evidence for a disk substructure in the early solar system

Authors :: James F. J. Bryson
Eduardo A. Lima
Xue-Ning Bai
Elias N. Mansbach
Nilanjan Chatterjee
Cauê S. Borlina
Benjamin P. Weiss
Source :: Science Advances
Publication Year :: 2021
Publisher :: American Association for the Advancement of Science (AAAS), 2021.
Abstract: Description<br />Paleomagnetic measurements of chondrules indicate the presence of a substructure in the solar nebula.<br />Astronomical observations and isotopic measurements of meteorites suggest that substructures are common in protoplanetary disks and may even have existed in the solar nebula. Here, we conduct paleomagnetic measurements of chondrules in CO carbonaceous chondrites to investigate the existence and nature of these disk substructures. We show that the paleomagnetism of chondrules in CO carbonaceous chondrites indicates the presence of a 101 ± 48 μT field in the solar nebula in the outer solar system (~3 to 7 AU from the Sun). The high intensity of this field relative to that inferred from inner solar system (~

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