2020
DOI: 10.1051/0004-6361/202037849
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Spatially resolved measurements of the solar photospheric oxygen abundance

Abstract: Aims. We report the results of a novel determination of the solar oxygen abundance using spatially resolved observations and inversions. We seek to derive the photospheric solar oxygen abundance with a method that is robust against uncertainties in the model atmosphere. Methods. We use observations with spatial resolution obtained at the Vacuum Tower Telescope to derive the oxygen abundance at 40 different spatial positions in granules and intergranular lanes. We first obtain a model for each location by inver… Show more

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Cited by 7 publications
(2 citation statements)
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“…An extension to using a 1D semi-empirical model atmosphere has recently been presented by Cubas Armas et al (2017Armas et al ( , 2020, who derived a 3D solar model from the spectral inversion of three spatially resolved Fe i lines. They have applied it to the [O i] 630.0 nm line in the Sun to infer log O = 8.80 ± 0.03.…”
Section: Carbon Nitrogen and Oxygenmentioning
confidence: 99%
“…An extension to using a 1D semi-empirical model atmosphere has recently been presented by Cubas Armas et al (2017Armas et al ( , 2020, who derived a 3D solar model from the spectral inversion of three spatially resolved Fe i lines. They have applied it to the [O i] 630.0 nm line in the Sun to infer log O = 8.80 ± 0.03.…”
Section: Carbon Nitrogen and Oxygenmentioning
confidence: 99%
“…It has undergone a major downward revision in recent decades, going from log ϵ O ≡ log N O /N H + 12 = 8.93 in Anders & Grevesse (1989) to 8.66 in Asplund et al (2005). Recent estimates can be separated into values log ϵ O = 8.67-8.71 (Amarsi et al 2018(Amarsi et al , 2021) 'intermediate' values of 8.73-8.77 (Caffau et al 2015Steffen et al 2015;Bergemann et al 2021;Magg et al 2022), with 'high' values in the range 8.80-8.90 also having been suggested (Socas-Navarro 2015;Cubas Armas et al 2020).…”
Section: Solar Oxygen Abundancementioning
confidence: 99%