dc.date.accessioned | 2017-08-15T12:28:46Z | |
dc.date.available | 2017-08-15T12:28:46Z | |
dc.date.created | 2016-04-05T13:33:24Z | |
dc.date.issued | 2016 | |
dc.identifier.citation | Chatterjee, Piyali Hansteen, Viggo Carlsson, Mats . Modeling Repeatedly Flaring δ Sunspots. Physical Review Letters. 2016, 116(10) | |
dc.identifier.uri | http://hdl.handle.net/10852/57031 | |
dc.description.abstract | Active regions (ARs) appearing on the surface of the Sun are classified into α, β, γ, and δ by the rules of the Mount Wilson Observatory, California on the basis of their topological complexity. Amongst these, the δ sunspots are known to be superactive and produce the most x-ray flares. Here, we present results from a simulation of the Sun by mimicking the upper layers and the corona, but starting at a more primitive stage than any earlier treatment. We find that this initial state consisting of only a thin subphotospheric magnetic sheet breaks into multiple flux tubes which evolve into a colliding-merging system of spots of opposite polarity upon surface emergence, similar to those often seen on the Sun. The simulation goes on to produce many exotic δ sunspot associated phenomena: repeated flaring in the range of typical solar flare energy release and ejective helical flux ropes with embedded cool-dense plasma filaments resembling solar coronal mass ejections.
© American Physical Society | en_US |
dc.language | EN | |
dc.publisher | American Physical Society | |
dc.title | Modeling Repeatedly Flaring δ Sunspots | en_US |
dc.type | Journal article | en_US |
dc.creator.author | Chatterjee, Piyali | |
dc.creator.author | Hansteen, Viggo | |
dc.creator.author | Carlsson, Mats | |
cristin.unitcode | 185,15,3,0 | |
cristin.unitname | Institutt for teoretisk astrofysikk | |
cristin.ispublished | true | |
cristin.fulltext | original | |
cristin.qualitycode | 2 | |
dc.identifier.cristin | 1348861 | |
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=Physical Review Letters&rft.volume=116&rft.spage=&rft.date=2016 | |
dc.identifier.jtitle | Physical Review Letters | |
dc.identifier.volume | 116 | |
dc.identifier.issue | 10 | |
dc.identifier.pagecount | 5 | |
dc.identifier.doi | http://dx.doi.org/10.1103/PhysRevLett.116.101101 | |
dc.identifier.urn | URN:NBN:no-59780 | |
dc.type.document | Tidsskriftartikkel | en_US |
dc.type.peerreviewed | Peer reviewed | |
dc.source.issn | 0031-9007 | |
dc.identifier.fulltext | Fulltext https://www.duo.uio.no/bitstream/handle/10852/57031/2/PhysRevLett.116.101101.pdf | |
dc.type.version | PublishedVersion | |
cristin.articleid | 101101 | |