ON THE BRIGHT LOOP TOP EMISSION IN POST-ERUPTION ARCADES.
| Title: | ON THE BRIGHT LOOP TOP EMISSION IN POST-ERUPTION ARCADES. |
|---|---|
| Authors: | Rohit Sharma, Durgesh Tripathi, Hiroaki Isobe, Avyarthana Ghosh |
| Source: | Astrophysical Journal; 5/20/2016, Vol. 823 Issue 1, p1-1, 1p |
| Subject Terms: | STELLAR chromospheres, X-rays, EVAPORATION (Meteorology), TELESCOPES, HYDRODYNAMICS |
| Abstract: | Observations of post-eruption arcades (PEAs) in X-rays and EUV reveal strong localized brightenings at the loop top regions. The origins of these brightenings and their dynamics are not well understood to date. Here, we study the dynamics of PEAs using one-dimensional hydrodynamic modeling, focusing on understanding the formation of localized brightening. Our findings suggest that these brightenings are the result of collisions between the counter-streaming chromospheric evaporation from both the footpoints. We perform forward modeling of the emission observed in simulated results in various spectral lines observed by the Extreme-Ultraviolet Imaging Telescope on board Hinode. The forward-modeled intensities in various spectral lines are in close agreement with a flare observed on 2006 December 17 by EIS. [ABSTRACT FROM AUTHOR] |
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| Database: | Complementary Index |
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| Items | – Name: Title Label: Title Group: Ti Data: ON THE BRIGHT LOOP TOP EMISSION IN POST-ERUPTION ARCADES. – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22Rohit+Sharma%22">Rohit Sharma</searchLink><br /><searchLink fieldCode="AR" term="%22Durgesh+Tripathi%22">Durgesh Tripathi</searchLink><br /><searchLink fieldCode="AR" term="%22Hiroaki+Isobe%22">Hiroaki Isobe</searchLink><br /><searchLink fieldCode="AR" term="%22Avyarthana+Ghosh%22">Avyarthana Ghosh</searchLink> – Name: TitleSource Label: Source Group: Src Data: Astrophysical Journal; 5/20/2016, Vol. 823 Issue 1, p1-1, 1p – Name: Subject Label: Subject Terms Group: Su Data: <searchLink fieldCode="DE" term="%22STELLAR+chromospheres%22">STELLAR chromospheres</searchLink><br /><searchLink fieldCode="DE" term="%22X-rays%22">X-rays</searchLink><br /><searchLink fieldCode="DE" term="%22EVAPORATION+%28Meteorology%29%22">EVAPORATION (Meteorology)</searchLink><br /><searchLink fieldCode="DE" term="%22TELESCOPES%22">TELESCOPES</searchLink><br /><searchLink fieldCode="DE" term="%22HYDRODYNAMICS%22">HYDRODYNAMICS</searchLink> – Name: Abstract Label: Abstract Group: Ab Data: Observations of post-eruption arcades (PEAs) in X-rays and EUV reveal strong localized brightenings at the loop top regions. The origins of these brightenings and their dynamics are not well understood to date. Here, we study the dynamics of PEAs using one-dimensional hydrodynamic modeling, focusing on understanding the formation of localized brightening. Our findings suggest that these brightenings are the result of collisions between the counter-streaming chromospheric evaporation from both the footpoints. We perform forward modeling of the emission observed in simulated results in various spectral lines observed by the Extreme-Ultraviolet Imaging Telescope on board Hinode. The forward-modeled intensities in various spectral lines are in close agreement with a flare observed on 2006 December 17 by EIS. [ABSTRACT FROM AUTHOR] – Name: Abstract Label: Group: Ab Data: <i>Copyright of Astrophysical Journal is the property of IOP Publishing and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.) |
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| RecordInfo | BibRecord: BibEntity: Identifiers: – Type: doi Value: 10.3847/0004-637X/823/1/47 Languages: – Code: eng Text: English PhysicalDescription: Pagination: PageCount: 1 StartPage: 1 Subjects: – SubjectFull: STELLAR chromospheres Type: general – SubjectFull: X-rays Type: general – SubjectFull: EVAPORATION (Meteorology) Type: general – SubjectFull: TELESCOPES Type: general – SubjectFull: HYDRODYNAMICS Type: general Titles: – TitleFull: ON THE BRIGHT LOOP TOP EMISSION IN POST-ERUPTION ARCADES. Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: Rohit Sharma – PersonEntity: Name: NameFull: Durgesh Tripathi – PersonEntity: Name: NameFull: Hiroaki Isobe – PersonEntity: Name: NameFull: Avyarthana Ghosh IsPartOfRelationships: – BibEntity: Dates: – D: 20 M: 05 Text: 5/20/2016 Type: published Y: 2016 Identifiers: – Type: issn-print Value: 0004637X Numbering: – Type: volume Value: 823 – Type: issue Value: 1 Titles: – TitleFull: Astrophysical Journal Type: main |
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