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| Content Provider | Springer Nature Link |
|---|---|
| Author | Ebadi, H. Vial, J. C. Ajabshirizadeh, A. |
| Copyright Year | 2009 |
| Abstract | The hydrogen and helium lines are the most prominent lines in the solar prominences spectra. Observations with the SUMER spectrometer onboard SOHO showed that there are weak lines in the blue wings of the Lyman series which affect their profiles. They were all identified as He ii lines in the Lyman series wings, except for the Lα line whose profile was affected by the use of an attenuator. The He ii lines are the even Balmer lines of the He ii system, a set of lines that we complete with the odd ones. We characterize them by comparison with the blue wings of the Lyman series in order to improve the H Lyman series observations and modeling, on one hand and to provide He ii lines observations for further combined H – He i – He ii modeling, on the other hand. |
| Starting Page | 91 |
| Ending Page | 98 |
| Page Count | 8 |
| File Format | |
| ISSN | 00380938 |
| Journal | Solar Physics |
| Volume Number | 257 |
| Issue Number | 1 |
| e-ISSN | 1573093X |
| Language | English |
| Publisher | Springer Netherlands |
| Publisher Date | 2009-05-05 |
| Publisher Place | Dordrecht |
| Access Restriction | One Nation One Subscription (ONOS) |
| Subject Keyword | Sun Prominences Lyman lines He ii lines Extraterrestrial Physics, Space Sciences Meteorology/Climatology Astrophysics |
| Content Type | Text |
| Resource Type | Article |
| Subject | Astronomy and Astrophysics Space and Planetary Science |
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