Corona and XUV emission modelling of the Sun and Sun-like stars

@article{Shoda2021CoronaAX,
  title={Corona and XUV emission modelling of the Sun and Sun-like stars},
  author={Munehito Shoda and Shinsuke Takasao},
  journal={Astronomy \& Astrophysics},
  year={2021}
}
The X-ray and extreme-ultraviolet (EUV) emissions from low-mass stars significantly affect the evolution of the planetary atmosphere. However, it is observationally difficult to constrain the stellar high-energy emission because of the strong interstellar extinction of EUV photons. In this study, we simulate the XUV (X-ray plus EUV) emission from Sun-like stars by extending the solar coronal heating model that self-consistently solves, with sufficiently high resolution, the surface-to-coronal… 

Universal Scaling Laws for Solar and Stellar Atmospheric Heating

The Sun and Sun-like stars commonly host multimillion-kelvin coronae and 10,000 K chromospheres. These extremely hot gases generate X-ray and extreme ultraviolet emissions that may impact the erosion

Modeling the Hα and He 10830 Transmission Spectrum of WASP-52b

Escaping atmosphere has been detected by the excess absorption of Lyα, Hα and He triplet (λ10830) lines. Simultaneously modeling the absorption of the Hα and He λ10830 lines can provide useful

Testing the Alfvén-wave Model of the Solar Wind with Interplanetary Scintillation

Understanding the mechanism(s) of solar wind acceleration is important in astrophysics and geophysics. A promising model of solar wind acceleration is known as the wave/turbulence-driven (WTD) model,

The Effect of the Chromospheric Temperature on Coronal Heating

Recent observational and numerical studies show a variety of thermal structures in the solar chromosphere. Given that the thermal interplay across the transition region is a key to coronal heating,

Role of Longitudinal Waves in Alfvén-wave-driven Solar Wind

We revisit the role of longitudinal waves in driving the solar wind. We study how the p-mode-like vertical oscillation on the photosphere affects the properties of solar winds in the framework of

Universal Scaling Laws for Solar and Stellar Atmospheric Heating: Catalog of Power-law Index between Solar Activity Proxies and Various Spectral Irradiances

The formation of extremely hot outer atmospheres is one of the most prominent manifestations of magnetic activity common to late-type dwarf stars, including the Sun. It is widely believed that these

References

SHOWING 1-5 OF 5 REFERENCES

Although there is no direct correlation between temperature and wavelength, it is still useful to understand the energy spectrum emanating from plasma with a specific temperature

  • 2012

Magnetohydrodynamics of the Sun Rappazzo

  • ApJ
  • 2007

A&A proofs: manuscript no. main

    Corona and XUV emission modelling of the Sun and Sun-like stars