Solar oxygen abundance

Autor: Maria Bergemann, Andrey K. Belyaev, Yaroslav V. Voronov, Richard Hoppe, S. A. Yakovleva, Monika Ellwarth, Manuel A. Bautista, Mats Carlsson, Ekaterina Semenova, Ansgar Reiners, Lyudmila Mashonkina, Ahmad Nemer, Jorrit Leenaarts

Publikováno v: Bergemann, M, Hoppe, R, Semenova, E, Carlsson, M, Yakovleva, S A, Voronov, Y V, Bautista, M, Nemer, A, Belyaev, A K, Leenaarts, J, Mashonkina, L, Reiners, A & Ellwarth, M 2021, ' Solar oxygen abundance ', Monthly Notices of the Royal Astronomical Society, vol. 508, no. 2, pp. 2236-2253 . https://doi.org/10.1093/mnras/stab2160

Motivated by the controversy over the surface metallicity of the Sun, we present a re-analysis of the solar photospheric oxygen (O) abundance. New atomic models of O and Ni are used to perform Non-Local Thermodynamic Equilibrium (NLTE) calculations w

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::12dc907208d4f6ff047230d272373e17
https://doi.org/10.1093/mnras/stab2160

The solar photospheric silicon abundance according to CO5BOLD. Investigating line broadening, magnetic fields, and model effects

Autor: S. A. Deshmukh, H.-G. Ludwig, A. Kučinskas, M. Steffen, P. S. Barklem, E. Caffau, V. Dobrovolskas, P. Bonifacio

Publikováno v: Astronomy and astrophysics, Paris : EDP Sciences, 2022, vol. 668, art. no. A48, p. 1-25

In this work, we present a photospheric solar silicon abundance derived using CO5BOLD model atmospheres and the LINFOR3D spectral synthesis code. Previous works have differed in their choice of a spectral line sample and model atmosphere as well as t

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::137d5aa1483b1a6d40e91b51cfb07aa6
https://repository.vu.lt/VU:ELABAPDB152735780&prefLang=en_US

Fan-shaped jet close to a light bridge

Autor: Y. Liu, G. P. Ruan, B. Schmieder, S. Masson, Y. Chen, J. T. Su, B. Wang, X. Y. Bai, Y. Su, W. Cao

On the Sun,jets in light bridges are frequently observed with high-resolution instruments.The respective roles played by convection and the magnetic field in triggering such jets are not yet clear.We report a small fan-shaped jet along a LB observed

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::202175f5643eab258ee49bcf0659c191

Similarities of magnetoconvection in the umbra and in the penumbra of sunspots

Autor: Andreas Lagg, Björn Löptien, M. van Noort, Sami K. Solanki

Context. It is unclear why there is a rather sharp boundary in sunspots between the umbra and the penumbra. Both regions exhibit magnetoconvection, manifesting in penumbral filaments in the penumbra and in umbral dots in the umbra. Aims. Here we comp

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::da506a640f8dbcbb27f708fd53ed40c1
http://arxiv.org/abs/2110.01352

Finding the mechanism of wave energy flux damping in solar pores using numerical simulations

Autor: S. D. T. Grant, Caitlin A. Gilchrist-Millar, Julia M. Riedl, T. Van Doorsselaere, David B. Jess

Publikováno v: Riedl, J M, Gilchrist-Millar, C A, Van Doorsselaere, T, Jess, D B & Grant, S D T 2021, ' Finding the mechanism of wave energy flux damping in solar pores using numerical simulations ', Astronomy & Astrophysics, vol. 648, A77 . https://doi.org/10.1051/0004-6361/202040163

Context. Solar magnetic pores are, due to their concentrated magnetic fields, suitable guides for magnetoacoustic waves. Recent observations have shown that propagating energy flux in pores is subject to strong damping with height; however, the reaso

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::68adb1e69522dc75d52404ffa8990d65
https://pure.qub.ac.uk/en/publications/finding-the-mechanism-of-wave-energy-flux-damping-in-solar-pores-using-numerical-simulations(8fa0709f-66ff-4658-9906-9b18ccd49c05).html