dc.date.accessioned | 2020-04-11T19:14:39Z | |
dc.date.available | 2020-04-11T19:14:39Z | |
dc.date.created | 2019-10-10T17:29:18Z | |
dc.date.issued | 2019 | |
dc.identifier.citation | Cheung, Mark C. M. De Pontieu, Bart Walter Martinez-Sykora, Juan Testa, Paola Winebarger, Amy R. Daw, Adrian N. Hansteen, Viggo Antolin, Patrick Tarbell, Theodore D. Wüelser, Jean Pierre Young, Peter . Multi-component Decomposition of Astronomical Spectra by Compressed Sensing. Astrophysical Journal. 2019, 882(1) | |
dc.identifier.uri | http://hdl.handle.net/10852/74490 | |
dc.description.abstract | The signal measured by an astronomical spectrometer may be due to radiation from a multi-component mixture of plasmas with a range of physical properties (e.g., temperature, Doppler velocity). Confusion between multiple components may be exacerbated if the spectrometer sensor is illuminated by overlapping spectra dispersed from different slits, with each slit being exposed to radiation from a different portion of an extended astrophysical object. We use a compressed sensing method to robustly retrieve the different components. This method can be adopted for a variety of spectrometer configurations, including single-slit, multi-slit (e.g., the proposed MUlti-slit Solar Explorer mission), and slot spectrometers (which produce overlappograms). | |
dc.language | EN | |
dc.publisher | University of Chicago Press | |
dc.rights | Attribution 3.0 Unported | |
dc.rights.uri | https://creativecommons.org/licenses/by/3.0/ | |
dc.title | Multi-component Decomposition of Astronomical Spectra by Compressed Sensing | |
dc.type | Journal article | |
dc.creator.author | Cheung, Mark C. M. | |
dc.creator.author | De Pontieu, Bart Walter | |
dc.creator.author | Martinez-Sykora, Juan | |
dc.creator.author | Testa, Paola | |
dc.creator.author | Winebarger, Amy R. | |
dc.creator.author | Daw, Adrian N. | |
dc.creator.author | Hansteen, Viggo | |
dc.creator.author | Antolin, Patrick | |
dc.creator.author | Tarbell, Theodore D. | |
dc.creator.author | Wüelser, Jean Pierre | |
dc.creator.author | Young, Peter | |
cristin.unitcode | 185,15,3,40 | |
cristin.unitname | Rosseland senter for solfysikk | |
cristin.ispublished | true | |
cristin.fulltext | original | |
cristin.qualitycode | 2 | |
dc.identifier.cristin | 1736211 | |
dc.identifier.bibliographiccitation | info:ofi/fmt:kev:mtx:ctx&ctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=Astrophysical Journal&rft.volume=882&rft.spage=&rft.date=2019 | |
dc.identifier.jtitle | Astrophysical Journal | |
dc.identifier.volume | 882 | |
dc.identifier.issue | 1 | |
dc.identifier.pagecount | 9 | |
dc.identifier.doi | https://doi.org/10.3847/1538-4357/ab263d | |
dc.identifier.urn | URN:NBN:no-77589 | |
dc.type.document | Tidsskriftartikkel | |
dc.type.peerreviewed | Peer reviewed | |
dc.source.issn | 0004-637X | |
dc.identifier.fulltext | Fulltext https://www.duo.uio.no/bitstream/handle/10852/74490/1/Cheung_2019_ApJ_882_13.pdf | |
dc.type.version | PublishedVersion | |
cristin.articleid | 13 | |
dc.relation.project | NFR/251369 | |
dc.relation.project | NFR/262622 | |