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pro vyhledávání: '"Paletou, Frederic"'
In this follow-up paper, we investigate the use of Convolutional Neural Network for deriving stellar parameters from observed spectra. Using hyperparameters determined previously, we have constructed a Neural Network architecture suitable for the der
Externí odkaz:
http://arxiv.org/abs/2210.17470
Machine Learning is an efficient method for analyzing and interpreting the increasing amount of astronomical data that is available. In this study, we show, a pedagogical approach that should benefit anyone willing to experiment with Deep Learning te
Externí odkaz:
http://arxiv.org/abs/2201.12476
Publikováno v:
Open Astronomy, Vol 32, Iss 1, Pp 1031-1037 (2023)
In this follow-up article, we investigate the use of convolutional neural network for deriving stellar parameters from observed spectra. Using hyperparameters determined previously, we have constructed a Neural Network architecture suitable for the d
Externí odkaz:
https://doaj.org/article/6e95ae1e2d814704a670cbf526ffb44d
Autor:
Paletou, Frédéric
This short review aims to clarify upon the origins of the so-called Eddington-Barbier relationships, which relate the emergent specific intensity and the flux to the photospheric source function at specific optical depths. Here we discuss about the a
Externí odkaz:
http://arxiv.org/abs/1711.07026
Autor:
Paletou, Frederic
The general context of this study concerns the post-processing of multiline spectropolarimetric observations of stars, and in particular these numerical analysis techniques aiming at the detection and the characterization of polarized signatures. Her
Externí odkaz:
http://arxiv.org/abs/1206.5139
Publikováno v:
Nature 438:466-469,2005
Models predict that magnetic fields play a crucial role in the physics of astrophysical accretion disks and their associated winds and jets. For example, the rotation of the disk twists around the rotation axis the initially vertical magnetic field,
Externí odkaz:
http://arxiv.org/abs/astro-ph/0511695
Publikováno v:
Astronomy and Astrophysics-A&A
Astronomy and Astrophysics-A&A, 2023, 671, pp.A93. ⟨10.1051/0004-6361/202244908⟩
Astronomy and Astrophysics-A&A, 2023, 671, pp.A93. ⟨10.1051/0004-6361/202244908⟩
International audience; In this article we discuss a method for obtaining a numerical solution to the so-called full nonlocal thermodynamic equilibrium (non-LTE) radiation transfer problem. More specifically, the usual numerical iterative methods for
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=od______2191::999bf87a4ec745e1855cf6fc543613e7
https://hal.science/hal-04037542/document
https://hal.science/hal-04037542/document
Autor:
Paletou, Frédéric, Léger, Ludovick
Publikováno v:
In Journal of Quantitative Spectroscopy and Radiative Transfer 2007 103(1):57-66
Akademický článek
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Autor:
Paletou, Frédéric
Publikováno v:
In Comptes Rendus de l'Academie des Sciences Series IV Physics August 2001 2(6):885-898