The Corona of the Sun as a Star

Giovanni Peres, Fabio Reale, Salvatore Orlando

Risultato della ricerca: Other

Abstract

We study the physics of the solar corona as a whole, i.e. of the Sun as a Star, in order to understand its global features and to provide a template for stellar coronae. In this process we strive to understand the features of various structures which compose the solar corona. This process in not straightforward given the problems of observing the Sun as a whole: e.g., no recent X-ray wide-band, medium-resolution, spectrum of the Sun is avaible, unlike stars and no X-ray spectral monitoring of the Sun at various activity phases is available. The presentation will discuss our work in this field; we present the method we have devised, based on Yohkoh/SXT data, to derive the Differential Emission Measure vs. Temperature, and the X-ray spectrum, of the solar corona, and the related main results. Finally we present some new results on flares and microflares and the implications on solar-stellar coronal heating.
Lingua originaleEnglish
Pagine41-54
Numero di pagine14
Stato di pubblicazionePublished - 2006

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coronas
solar corona
sun
stars
stellar coronas
x rays
flares
templates
broadband
physics
heating
temperature

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

Cita questo

The Corona of the Sun as a Star. / Peres, Giovanni; Reale, Fabio; Orlando, Salvatore.

2006. 41-54.

Risultato della ricerca: Other

Peres, G, Reale, F & Orlando, S 2006, 'The Corona of the Sun as a Star', pagg. 41-54.
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AU - Reale, Fabio

AU - Orlando, Salvatore

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N2 - We study the physics of the solar corona as a whole, i.e. of the Sun as a Star, in order to understand its global features and to provide a template for stellar coronae. In this process we strive to understand the features of various structures which compose the solar corona. This process in not straightforward given the problems of observing the Sun as a whole: e.g., no recent X-ray wide-band, medium-resolution, spectrum of the Sun is avaible, unlike stars and no X-ray spectral monitoring of the Sun at various activity phases is available. The presentation will discuss our work in this field; we present the method we have devised, based on Yohkoh/SXT data, to derive the Differential Emission Measure vs. Temperature, and the X-ray spectrum, of the solar corona, and the related main results. Finally we present some new results on flares and microflares and the implications on solar-stellar coronal heating.

AB - We study the physics of the solar corona as a whole, i.e. of the Sun as a Star, in order to understand its global features and to provide a template for stellar coronae. In this process we strive to understand the features of various structures which compose the solar corona. This process in not straightforward given the problems of observing the Sun as a whole: e.g., no recent X-ray wide-band, medium-resolution, spectrum of the Sun is avaible, unlike stars and no X-ray spectral monitoring of the Sun at various activity phases is available. The presentation will discuss our work in this field; we present the method we have devised, based on Yohkoh/SXT data, to derive the Differential Emission Measure vs. Temperature, and the X-ray spectrum, of the solar corona, and the related main results. Finally we present some new results on flares and microflares and the implications on solar-stellar coronal heating.

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EP - 54

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