Zobrazeno 1 - 10
of 3 358
pro vyhledávání: '"Calvo F"'
Autor:
Calvo, F.
Recent pump-probe experiments [Albrechtsen {\em et al.}, Nature {\bf 623}, 319 (2023)] have explored the gradual solvation of sodium cations in contact with helium nanodroplets, using a fully solvated xenon atom as a probe exerting a repulsive intera
Externí odkaz:
http://arxiv.org/abs/2409.16842
Publikováno v:
A&A 672, L6 (2023)
Solar oxygen abundance measurements based on the O I near-infrared triplet have been a much-debated subject for several decades since non-local thermodynamic equilibrium (NLTE) calculations with 3D radiation-hydrodynamics model atmospheres introduced
Externí odkaz:
http://arxiv.org/abs/2304.01048
Autor:
Pietrow, A. G. M., Kiselman, D., Andriienko, O., de la Roche, D. J. M. Petit dit, Baso, C. J. Díaz, Calvo, F.
Publikováno v:
A&A 671, A130 (2023)
Observations of center-to-limb variations (CLV) of spectral lines and continua provide a good test for the accuracy of models of solar and stellar atmospheric structure and spectral-line formation. They are also widely used to constrain elemental abu
Externí odkaz:
http://arxiv.org/abs/2212.03991
Publikováno v:
A&A 672, A47 (2023)
Recent observations revealed loop-like structures at very small scales visible in observables that sample transition region (TR) and coronal temperatures. Their formation remains unclear. We study an example of a bipolar system in realistic magnetohy
Externí odkaz:
http://arxiv.org/abs/2211.08806
Publikováno v:
A&A 659, A58 (2022)
Fan-shaped jets can be observed above light bridges and are driven by reconnection of the vertical umbral field with the more horizontal field above the light bridges. Because these jets are not fully opaque in chromospheric lines, one cannot study t
Externí odkaz:
http://arxiv.org/abs/2110.10541
Molecular clusters of 1,3-butadiene were theoretically investigated using a variety of approaches, encompassing classical force fields and different quantum chemical (QC) methods, as well as density-functional based tight-binding (DFTB) in its self-c
Externí odkaz:
http://arxiv.org/abs/2012.06844
Publikováno v:
A&A 649, A106 (2021)
We present high-resolution and multi-line observations of a C2-class solar flare, occurred in NOAA AR 12740 on May 6, 2019. The rise, peak and decay phases of the flare were recorded continuously and quasi-simultaneously in the Ca II K line with the
Externí odkaz:
http://arxiv.org/abs/2011.02953
Using high-resolution spectropolarimetric data recorded with the Swedish 1 m Solar Telescope, we have identified several instances of granular lanes traveling into granules. These are believed to be the observational signature of underlying tubes of
Externí odkaz:
http://arxiv.org/abs/2010.05577
Autor:
Calvo F., Parneix P.
Publikováno v:
EPJ Web of Conferences, Vol 18, p 03003 (2012)
An overview of the physics of homogeneous nucleation is presented, focusing on the main theoretical approaches that are currently available. We review the microscopic assumptions behind classical nucleation theory, as well as several improvements wit
Externí odkaz:
https://doaj.org/article/7f4ea399d1b24e3d85215a7d8d3c144d
The current debate about the nature of the carbonaceous material carrying the infrared (IR) emission spectra of planetary and proto-planetary nebulae, including the broad plateaus, calls for further studies on the interplay between structure and spec
Externí odkaz:
http://arxiv.org/abs/1905.02550