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Scattering Polarization in the Fe I 630 nm Emission Lines at the Extreme Limb of the Sun
- 1.0350096 - ASÚ 2011 RIV US eng J - Journal Article
Lites, B. - Casini, R. - Manso Sainz, R. - Jurčák, Jan - Ichimoto, K. - Ishikawa, R. - Okamoto, T. J. - Tsuneta, S. - Bellot Rubio, L.
Scattering Polarization in the Fe I 630 nm Emission Lines at the Extreme Limb of the Sun.
Astrophysical Journal. Roč. 713, č. 1 (2010), s. 450-457. ISSN 0004-637X. E-ISSN 1538-4357
Institutional research plan: CEZ:AV0Z10030501
Keywords : Sun * photosphere * surface magnetism
Subject RIV: BN - Astronomy, Celestial Mechanics, Astrophysics
Impact factor: 7.436, year: 2010
Spectro-polarimetric observations with the Solar Optical Telescope onboard Hinode reveal the emission spectrum of the Fe i 630nmlines at the solar limb. The emission shell extends for less than 1 arcesc thereby making it extremely difficult to detect from ground-based observatories viewing the limb through the Earth’s atmosphere. The linear polarization signal is clearly due to scattering and it is predominantly oriented in the radial direction. Using a comprehensive atomic model of iron, we are able to interpret qualitatively the observed signals, including the radial orientation of the linear polarization.
Permanent Link: http://hdl.handle.net/11104/0190185
Number of the records: 1