This Is Auburn

Show simple item record

Oxygen-hydrogen differentiated observations from TWINS: The 22 July 2009 storm


Metadata FieldValueLanguage
dc.contributorJ. D. Perez, perez@auburn.eduen_US
dc.creatorValek, P. W.
dc.creatorGoldstein, J.
dc.creatorMcComas, D. J.
dc.creatorIlie, R.
dc.creatorBuzulukova, N.
dc.creatorFok, M. -C.
dc.creatorPerez, J. D.
dc.date.accessioned2020-06-09T20:19:00Z
dc.date.available2020-06-09T20:19:00Z
dc.date.created2013-06
dc.identifier10.1002/jgra.50204en_US
dc.identifier.urihttps://agupubs.onlinelibrary.wiley.com/doi/abs/10.1002/jgra.50204en_US
dc.identifier.urihttp://hdl.handle.net/11200/49870
dc.description.abstractThe 22 July 2009 magnetic storm is the first significant storm during the emergence of the recent prolonged solar cycle minimum. This moderate storm (minimum Dst approximately -78 nT) has received a good deal of attention in the community. We present here global observations of the H and O populations in the inner magnetosphere using Energetic Neutral Atom (ENA) observations from the TWINS mission. We develop and provide the methodology for separating H and O ENAs, based on mass dependent differences in the pulse height distributions of the microchannel plate (MCP) based detectors. We present the first composition separated H and O ENA images at central energies of 16 and 32keV. We also show that TWINS has sufficient angular resolution to separate the High Altitude Emissions (HAEs) from the Low Altitude Emissions (LAEs). We observe that all ENA emissions in this energy range quickly rise, but the O ENAs have a larger relative increase, and stay at elevated levels much longer, well into the recovery phase.en_US
dc.formatPDFen_US
dc.publisherAMER GEOPHYSICAL UNIONen_US
dc.relation.ispartofJOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICSen_US
dc.relation.ispartofseries2169-9380en_US
dc.subjectmagnetic storms; ENAs; Oxygen; TWINSen_US
dc.subjectION COMPOSITION; CARBON FOILS; ENA EMISSIONen_US
dc.titleOxygen-hydrogen differentiated observations from TWINS: The 22 July 2009 stormen_US
dc.typeTexten_US
dc.type.genreJournal Article, Academic Journalen_US
dc.citation.volume118en_US
dc.citation.issue6en_US
dc.citation.spage3377en_US
dc.citation.epage3393en_US
dc.description.statusPublisheden_US

Files in this item

Show simple item record