Spectropolarimetry of Active Regions on the Sun | Magnetic Coupling Between the Photosphere and Chromosphere

Nagaraju Krishnappa

ISBN 10: 383837004X / ISBN 13: 9783838370040

Edité par LAP LAMBERT Academic Publishing, 2010

Spectropolarimetry of Active Regions on the Sun | Magnetic Coupling Between the Photosphere and Chromosphere | Nagaraju Krishnappa | Taschenbuch | 144 S. | Englisch | 2010 | LAP LAMBERT Academic Publishing | EAN 9783838370040 | Verantwortliche Person für die EU: BoD - Books on Demand, In de Tarpen 42, 22848 Norderstedt, info[at]bod[dot]de | Anbieter: preigu. N° de réf. du vendeur 101045709

Synopsis :

The upper layers of the solar atmosphere, namely the chromosphere and corona are hotter than the photosphere. This is against the second law of thermodynamics which, in simple words, states that the temperature decreases as one moves away from the heat source, which is every body's common experience. In that case, how these upper layers of solar atmosphere are heated to such high temperatures is a million dollar question. The magnetic field seems to be central to this problem. Apart from many other problems in solar physics, magnetic field on the sun is at the heart of space weather prediction which is governed by the solar activity. Hence the measurement of the magnetic field simultaneously at various heights is important. For this purpose multiline spectropolarimetry is a powerful observational technique. This thesis is about understanding the magnetic coupling between the photosphere and chromosphere above sunspots through multiline spectropolarimetry.

Présentation de l'éditeur: The upper layers of the solar atmosphere, namely the chromosphere and corona are hotter than the photosphere. This is against the second law of thermodynamics which, in simple words, states that the temperature decreases as one moves away from the heat source, which is every body's common experience. In that case, how these upper layers of solar atmosphere are heated to such high temperatures is a million dollar question. The magnetic field seems to be central to this problem. Apart from many other problems in solar physics, magnetic field on the sun is at the heart of space weather prediction which is governed by the solar activity. Hence the measurement of the magnetic field simultaneously at various heights is important. For this purpose multiline spectropolarimetry is a powerful observational technique. This thesis is about understanding the magnetic coupling between the photosphere and chromosphere above sunspots through multiline spectropolarimetry.

Détails bibliographiques

Titre : Spectropolarimetry of Active Regions on the ...
Éditeur : LAP LAMBERT Academic Publishing
Date d'édition : 2010
Reliure : Taschenbuch
Etat : Neu