<codeBook xmlns="ddi:codebook:2_5" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="ddi:codebook:2_5 https://ddialliance.org/Specification/DDI-Codebook/2.5/XMLSchema/codebook.xsd" version="2.5"><docDscr><citation><titlStmt><titl>Spacecraft Observations and Theoretical Understanding of Slow Electron Holes</titl><IDNo agency="DOI">doi:10.7910/DVN/BQNUZZ</IDNo></titlStmt><distStmt><distrbtr source="archive">Harvard Dataverse</distrbtr><distDate>2022-03-17</distDate></distStmt><verStmt source="archive"><version date="2022-10-15" type="RELEASED">2</version></verStmt><biblCit>Kamaletdinov, Sergey R.; Hutchinson, Ian H.; Vasko, Ivan Y.; Artemyev, Anton V.; Lotekar, Ajay; Mozer, Forrest, 2022, "Spacecraft Observations and Theoretical Understanding of Slow Electron Holes", https://doi.org/10.7910/DVN/BQNUZZ, Harvard Dataverse, V2</biblCit></citation></docDscr><stdyDscr><citation><titlStmt><titl>Spacecraft Observations and Theoretical Understanding of Slow Electron Holes</titl><IDNo agency="DOI">doi:10.7910/DVN/BQNUZZ</IDNo></titlStmt><rspStmt><AuthEnty>Kamaletdinov, Sergey R.; Hutchinson, Ian H.; Vasko, Ivan Y.; Artemyev, Anton V.; Lotekar, Ajay; Mozer, Forrest</AuthEnty></rspStmt><prodStmt/><distStmt><distrbtr source="archive">Harvard Dataverse</distrbtr></distStmt><holdings URI="https://doi.org/10.7910/DVN/BQNUZZ"/></citation><stdyInfo><subject><keyword xml:lang="en">Physics</keyword><keyword>condition</keyword><keyword>electron hole</keyword><keyword>local minimums</keyword><keyword>magnetospheric multi scale</keyword><keyword>slow electrons</keyword><keyword>velocity distribution functions</keyword></subject><abstract>We present Magnetospheric Multiscale observations showing large numbers of slow electron holes with speeds clustered near the local minimum of double-humped velocity distribution functions of background ions. Theoretical computations show that slow electron holes can avoid the acceleration that otherwise prevents their remaining slow only under these same circumstances. Although the origin of the slow electron holes is still elusive, the agreement between observation and theory about the conditions for their existence is remarkable.</abstract><sumDscr/><notes>&lt;a href="http://library.psfc.mit.edu/catalog/reports/2020/21ja/21ja048/abstract.php">PSFC REPORT PSFC/JA-21-48&lt;/a>&lt;br />&lt;br />None&lt;br />&lt;br />If this record does not contain the full text, then the manuscript has been embargoed by the publisher thus restricting open access for 12 to 24 months after publication.</notes></stdyInfo><method><dataColl><sources/></dataColl><anlyInfo/></method><dataAccs><setAvail/><useStmt/><notes type="DVN:TOU" level="dv">This dataset is made available without information on how it can be used. You should communicate with the Contact(s) specified before use.</notes></dataAccs><othrStdyMat/></stdyDscr><otherMat ID="f6573569" URI="https://dataverse.harvard.edu/api/access/datafile/6573569" level="datafile"><labl>21ja048_archival_manuscript.pdf</labl><txt></txt><notes level="file" type="DATAVERSE:CONTENTTYPE" subject="Content/MIME Type">application/pdf</notes></otherMat></codeBook>