Abbo, L. and Giordano, S. and Ofman, L. (2019) Observed and simulated coronal UV lines at solar minimum activity: The impact of the 3D tilted coronal streamer belt. Il nuovo cimento C, 42 (1). pp. 1-4. ISSN 1826-9885
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Abstract
The aim of this study is to improve the knowledge of the slow solar wind origin. In particular, we compute the emissivities and the intensities of UV spectral lines starting from the physical parameters of a time-dependent 3D three-fluid MHD model of the tilted coronal streamer belt. The results obtained from the model are compared in the extended corona (at 1.5 and 1.9 R�) to the UV spectroscopic data from the Ultraviolet Coronagraph Spectrometer (UVCS) onboard SOHO in the streamer belt during the minimum of solar activity (1996). The discussion is focused on the importance of the projection effects due to the integration along the line of sight in the coronal ultraviolet observations of streamer core dimming.
| Item Type: | Article |
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| Subjects: | 500 Scienze naturali e Matematica > 530 Fisica |
| Depositing User: | Marina Spanti |
| Date Deposited: | 27 Nov 2020 10:00 |
| Last Modified: | 27 Nov 2020 10:00 |
| URI: | http://eprints.bice.rm.cnr.it/id/eprint/20389 |
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