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pro vyhledávání: '"Carlin, A S"'
The physical diagnosis of the solar atmosphere is achieved by solving the polarized radiative transfer problem for plasmas in Non-Local Thermodynamical Equilibrium (NLTE). This scenario poses theoretical challenges for integrating the radiative trans
Externí odkaz:
http://arxiv.org/abs/2402.00252
A popular method for estimating a causal treatment effect with observational data is the difference-in-differences (DiD) model. In this work, we consider an extension of the classical DiD setting to the hierarchical context in which data cannot be ma
Externí odkaz:
http://arxiv.org/abs/1910.07017
Autor:
Ariste, A. López, Tessore, B., Carlín, E. S., Mathias, Ph., Lèbre, A., Morin, J., Petit, P., Aurière, M., Gillet, D., Herpin, F.
Publikováno v:
A&A 632, A30 (2019)
Aims: From a coherent interpretation of the linear polarisation detected in the spectral lines of the Mira star $\chi$ Cyg, we derive information about the dynamics of the stellar photosphere, including pulsation. Methods: From spectropolarimetric ob
Externí odkaz:
http://arxiv.org/abs/1909.03720
Autor:
Carlin, Edgar S.
Publikováno v:
A&A 627, A47 (2019)
The morphology of spectral line polarization is the most valuable observable to investigate the magnetic and dynamic solar atmosphere. However, in order to develop solar diagnosis, it is fundamental to understand the different kinds of anomalous sola
Externí odkaz:
http://arxiv.org/abs/1905.08672
Autor:
Bianda, M., Berdyugina, S., Gisler, D., Ramelli, R., Belluzzi, L., Carlin, E. S., Stenflo, J. O., Berkefeld, T.
Publikováno v:
A&A 614, A89 (2018)
Context. The scattering polarization signal observed in the photospheric Sr i 4607 {\AA} line is expected to vary at granular spatial scales. This variation can be due to changes in the magnetic field intensity and orientation (Hanle effect), but als
Externí odkaz:
http://arxiv.org/abs/1803.03531
Publikováno v:
The Astrophysical Journal, 840, 2017, 107
The discussion regarding the numerical integration of the polarized radiative transfer equation is still open and the comparison between the different numerical schemes proposed by different authors in the past is not fully clear. Aiming at facilitat
Externí odkaz:
http://arxiv.org/abs/1709.01274
Autor:
Carlin, E. S., Bianda, M.
Due to the quick evolution of the solar chromosphere, its magnetic field cannot be inferred reliably without accounting for the temporal variations of its polarized light. This has been broadly overlooked in the modelling and interpretation of the po
Externí odkaz:
http://arxiv.org/abs/1706.02381
Autor:
Carlin, E. S.
Exposing the polarization signatures of the solar chromosphere requires studying its temporal variations, which is rarely done when modelling and interpreting scattering and Hanle signals. The present contribution sketches the scientific problem of s
Externí odkaz:
http://arxiv.org/abs/1612.05091
Akademický článek
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Autor:
Carlin, E. S.
Is it physically feasible to perform chromospheric diagnosis using spatial maps of scattering polarization at the solar disk center? To investigate it we synthesized polarization maps (in 8542 Angstroms) resulting from MHD solar models and NLTE radia
Externí odkaz:
http://arxiv.org/abs/1610.09897