New Near-infrared Coronal Lines Observed during the 2019 Total Solar Eclipse
The Astrophysical JournalWe report on a further analysis of the Airborne Infrared Spectrometer (AIR-Spec) observations from the 2019 July 2 total eclipse and present the identifications of three new coronal lines from Fe x , Si xi , and Si vi in AIR-Spec’s 1.87–1.99 μ m band ...
Jenna Samra +4 more
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P-CORONA: A New Tool for Calculating the Intensity and Polarization of Coronal Lines in 3D Models of the Solar Corona [PDF]
The Astrophysical JournalThe critical need to study the magnetic field in the solar corona is highlighted by recent observational facilities, such as the Daniel K. Inouye Solar Telescope and Aditya-L1.
Supriya Hebbur Dayananda +4 more
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Asymmetries of solar coronal extreme ultraviolet emission lines [PDF]
Astronomy and Astrophysics, 2010 Astronomy & Astrophysics (accepted), 17 pages, 13 ...
Hardi Peter
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Identification of Solar Coronal Emission Lines [PDF]
Nature, 1964 THE coronal emission lines are produced by highly ionized atoms undergoing forbidden transitions from metastable levels1. In an attempt to identify further lines we have examined the level separation 3P2—3P1 in the excited four-electron configuration 1s2 2s 2p. Fig. 1 shows the level structure near the ground-state.
Peter Collins, M. H. L. Pryce
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Solar Coronal Lines in the Visible and Infrared: A Rough Guide [PDF]
The Astrophysical Journal, 2018 Abstract We review the coronal visible and infrared lines, collecting previous observations and comparing, whenever available, observed radiances to those predicted by various models: the quiet Sun (QS), a moderately active Sun, and an active region as observed near the limb, around 1.1 R ⊙.
Giulio Del Zanna, Edward E. DeLuca
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SPECTROSCOPIC OBSERVATIONS OF HOT LINES CONSTRAINING CORONAL HEATING IN SOLAR ACTIVE REGIONS [PDF]
The Astrophysical Journal, 2009 ApJ, 2009, in ...
S. Patsourakos, J. A. Klimchuk
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The solar photospheric-to-coronal Fe abundance ratio from X-ray fluorescence lines [PDF]
Monthly Notices of the Royal Astronomical Society, 2012 Accepted for publication by ...
K. J. H. Phillips
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On the Lyman α and β lines in solar coronal streamers [PDF]
, 2006 We investigate the formation of the H I Lyman-alpha and Lyman-beta lines in an equatorial coronal streamer. Particular attention is paid to frequency redistribution for the scattering of the incident radiation. The properties of the spectral lines are studied.
N. Labrosse, X. Li, B. Li
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Coronal Emission Lines observed at the Total Solar Eclipse of June 19, 1936 [PDF]
Nature, 1937 THE unusual brightness of the corona at the 1936 total eclipse—it was easily seen several seconds before totality began—has given Prof. Sekiguti and his colleagues the chance of obtaining some new lines in the emission spectrum of the corona. Confirming Prof. Tanaka, he restores the line at 4725 A., previously rejected as being insufficiently supported,
F. J. M. Stratton
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A burst model for line emission in the solar atmosphere. II - Coronal extreme ultraviolet lines
The Astrophysical Journal, 1992 We review the spectroscopic evidence for explosive events, hereafter referred to as bursts, occurring in solar coronal plasmas. Problems in the interpretation of extreme ultraviolet spectra from Mg-like ions, particularly Fe XV in solar flares can be obviated to certain extent if these ions are produced in an ionizing plasma, with the 3s3p 3 P levels ...
U. Feldman +4 more
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