Detail publikačního výsledku

A Comprehensive Model of the K-coronal Spectrum for the Inference of Electron Temperature and Bulk Flow Velocity in the Corona

DOSPIVA, J.; DRUCKMÜLLEROVÁ, H.

Originální název

A Comprehensive Model of the K-coronal Spectrum for the Inference of Electron Temperature and Bulk Flow Velocity in the Corona

Anglický název

A Comprehensive Model of the K-coronal Spectrum for the Inference of Electron Temperature and Bulk Flow Velocity in the Corona

Druh

Článek WoS

Originální abstrakt

The electron temperature of the corona is one of the key physical parameters which reflect the complexity of coronal-heating processes. L. E. Cram was the first to show that the K-coronal spectrum, produced by the scattering of the photospheric spectrum from free streaming coronal electrons, could be used to infer the coronal temperature with an uncertainty of 0.2 MK. This study revisits Cram's original work by introducing a robust mathematical model which enables the exploration of a broad range of plasma parameters, most importantly the electron velocity distribution, in its implementation. While the inference of electron temperature is well established, the model results show that the velocity of the electrons in the inner corona can also be inferred.

Anglický abstrakt

The electron temperature of the corona is one of the key physical parameters which reflect the complexity of coronal-heating processes. L. E. Cram was the first to show that the K-coronal spectrum, produced by the scattering of the photospheric spectrum from free streaming coronal electrons, could be used to infer the coronal temperature with an uncertainty of 0.2 MK. This study revisits Cram's original work by introducing a robust mathematical model which enables the exploration of a broad range of plasma parameters, most importantly the electron velocity distribution, in its implementation. While the inference of electron temperature is well established, the model results show that the velocity of the electrons in the inner corona can also be inferred.

Klíčová slova

Solar K corona; Solar wind; Solar corona

Klíčová slova v angličtině

Solar K corona; Solar wind; Solar corona

Autoři

DOSPIVA, J.; DRUCKMÜLLEROVÁ, H.

Rok RIV

2026

Vydáno

23.01.2026

Nakladatel

IOP Publishing

Periodikum

The Astrophysical journal. Supplement series

Svazek

282

Číslo

2

Stát

Spojené království Velké Británie a Severního Irska

Strany od

1

Strany do

7

Strany počet

7

URL

https://iopscience.iop.org/article/10.3847/1538-4365/ae2fc2

Plný text v Digitální knihovně

http://hdl.handle.net/11012/256408

BibTex

@article{BUT200869,
  author="{} and Jindřich {Dospiva} and  {} and Hana {Druckmüllerová}",
  title="A Comprehensive Model of the K-coronal Spectrum for the Inference of Electron Temperature and Bulk Flow Velocity in the Corona",
  journal="The Astrophysical journal. Supplement series",
  year="2026",
  volume="282",
  number="2",
  pages="1--7",
  doi="10.3847/1538-4365/ae2fc2",
  issn="0067-0049",
  url="https://iopscience.iop.org/article/10.3847/1538-4365/ae2fc2"
}