Zobrazeno 1 - 10
of 170
pro vyhledávání: '"M. Faurobert"'
Publikováno v:
Astronomy and Astrophysics-A&A
Astronomy and Astrophysics-A&A, EDP Sciences, 2021, ⟨10.1051/0004-6361/202040236⟩
Astronomy and Astrophysics-A&A, EDP Sciences, 2021, ⟨10.1051/0004-6361/202040236⟩
Context. In order to constrain the models describing circumstellar environments, it is necessary to solve the radiative transfer equation in the presence of absorption and scattering, coupled with the equation for radiative equilibrium. However, solv
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::182c1453bde9ba2d45a566bd87db9524
https://hal.archives-ouvertes.fr/hal-03306454
https://hal.archives-ouvertes.fr/hal-03306454
Autor:
M. Faurobert
Publikováno v:
The Sun as a Guide to Stellar Physics
The Sun as a Guide to Stellar Physics, Elsevier, pp.267-299, 2019, ⟨10.1016/B978-0-12-814334-6.00010-8⟩
The Sun as a Guide to Stellar Physics, Elsevier, pp.267-299, 2019, ⟨10.1016/B978-0-12-814334-6.00010-8⟩
The Sun, like many cool stars on the main sequence, is variable. Changing dark and bright features, sunspots, and faculae appear and disappear on its surface. These variations are cyclic and related to a dynamo mechanism operating in the solar interi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a41f6b8a71429b2290e71e13790e8df2
https://hal.archives-ouvertes.fr/hal-03472472
https://hal.archives-ouvertes.fr/hal-03472472
Akademický článek
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Publikováno v:
Astronomy and Astrophysics-A&A
Astronomy and Astrophysics-A&A, EDP Sciences, 2018, 616, pp.A133. ⟨10.1051/0004-6361/201833195⟩
Astronomy and Astrophysics-A&A, EDP Sciences, 2018, 616, pp.A133. ⟨10.1051/0004-6361/201833195⟩
Context. The contribution of quiet-Sun regions to the solar irradiance variability is currently unclear. Some solar-cycle variations of the quiet-Sun physical structure, such as the temperature gradient, might affect the irradiance. The synoptic meas
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::918f68b4dd0be2e9061ba3df4fbf0cc5
http://arxiv.org/abs/1809.00893
http://arxiv.org/abs/1809.00893
Publikováno v:
IAU symposium S305, Polarimetry: From the Sun to Stars and Stellar Environments
IAU symposium S305, Polarimetry: From the Sun to Stars and Stellar Environments, Nov 2014, Punta Leona, Costa Rica. pp.22-27, ⟨10.1017/S1743921315004470⟩
IAU symposium S305, Polarimetry: From the Sun to Stars and Stellar Environments, Nov 2014, Punta Leona, Costa Rica. pp.22-27, ⟨10.1017/S1743921315004470⟩
The quiet Sun observed in polarized light exhibits a rich and complex magnetic structuring which is still not fully resolved nor understood. The present work is intended to contribute to the debate about the origin of the quiet sun magnetic fields, i
Autor:
M. Faurobert, Ivan Milic
Publikováno v:
Proceedings of the International Astronomical Union. 10:238-244
One of the methods for diagnosing vector magnetic fields in solar prominences is the so called “inversion” of observed polarized spectral lines. This inversion usually assumes a fairly simple generative model and in this contribution we aim to st
Publikováno v:
4th French-Chinese Meeting on Solar Physics, "Understanding Solar Activity: Advances and Challenges"
4th French-Chinese Meeting on Solar Physics, "Understanding Solar Activity: Advances and Challenges", Nov 2011, Nice, France. pp.83-86, ⟨10.1051/eas/1255011⟩
Understanding solar activity: advances and challenges4th French-chinese meeting on solar physics.
Understanding solar activity: advances and challenges 4th French-chinese meeting on solar physics., Nov 2011, Nice, France. 2012
4th French-Chinese Meeting on Solar Physics, "Understanding Solar Activity: Advances and Challenges", Nov 2011, Nice, France. pp.83-86, ⟨10.1051/eas/1255011⟩
Understanding solar activity: advances and challenges4th French-chinese meeting on solar physics.
Understanding solar activity: advances and challenges 4th French-chinese meeting on solar physics., Nov 2011, Nice, France. 2012
Context. Many inversion techniques derive vector magnetic fields and other parameters of the solar atmosphere from Stokes profiles with an iterative process. Aims. We propose a new inversion method, using functions derived from central moments (ICM),
Publikováno v:
Journal of Quantitative Spectroscopy and Radiative Transfer
Journal of Quantitative Spectroscopy and Radiative Transfer, Elsevier, 2017, 196, pp.230-241. ⟨10.1016/j.jqsrt.2017.04.009⟩
Journal of Quantitative Spectroscopy and Radiative Transfer, Elsevier, 2017, 196, pp.230-241. ⟨10.1016/j.jqsrt.2017.04.009⟩
Efficient non-LTE multilevel radiative transfer calculations are needed for a proper interpretation of astrophysical spectra. In particular, realistic simulations of time-dependent processes or multi-dimensional phenomena require that the iterative m
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1ebc66f07a3745b7fa21d21bb75f6216
https://hal.archives-ouvertes.fr/hal-03472478
https://hal.archives-ouvertes.fr/hal-03472478
Publikováno v:
Astronomy and Astrophysics-A&A
Astronomy and Astrophysics-A&A, EDP Sciences, 2016, 595, pp.A71. ⟨10.1051/0004-6361/201527797⟩
Astronomy and Astrophysics-A&A, EDP Sciences, 2016, 595, pp.A71. ⟨10.1051/0004-6361/201527797⟩
Context. The contribution of quiet-Sun regions to the solar irradiance variability is currently unclear. Some solar-cycle variations of the quiet-Sun physical structure, such as the temperature gradient or the photospheric radius, might affect the ir
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::213e2df416fb619e46b76566e15ebfb5
https://hal.archives-ouvertes.fr/hal-03472489
https://hal.archives-ouvertes.fr/hal-03472489
Publikováno v:
EAS Publications Series. 55:79-82
Using spectroscopic data from Hinode/SOT we have obtained monochromatic images of the solar granulation at different levels in the Fe i 603 nm lines. The granulation contrast inversion is clearly detected as a negative peak in the cross-correlation o