Stellar X-rays and magnetic activity in 3D MHD coronal models

no code implementations • 1 Feb 2021 • J. Zhuleku, J. Warnecke, H. Peter

Observations suggest a power-law relation between the coronal emission in X-rays, $L_{\rm{X}}$, and the total (unsigned) magnetic flux at the stellar surface, $\Phi$.

Solar and Stellar Astrophysics High Energy Astrophysical Phenomena

Extreme-ultraviolet bursts and nanoflares in the quiet-Sun transition region and corona

no code implementations • 1 Feb 2021 • L. P. Chitta, H. Peter, P. R. Young

If the coronal heating of the quiet Sun is mainly bursty, then the high-resolution EUV observations from Solar Orbiter may be able to reduce the deficit in the number of EUV bursts seen with SDO/AIA at least partly by detecting more such events.

Solar and Stellar Astrophysics Plasma Physics Space Physics

Magnetic Imaging of the Outer Solar Atmosphere (MImOSA): Unlocking the driver of the dynamics in the upper solar atmosphere

no code implementations • 5 Jan 2021 • H. Peter, E. Alsina Ballester, V. Andretta, F. Auchere, L. Belluzzi, A. Bemporad, D. Berghmans, E. Buchlin, A. Calcines, L. P. Chitta, K. Dalmasse, T. del Pino Aleman, A. Feller, C. Froment, R. Harrison, M. Janvier, S. Matthews, S. Parenti, D. Przybylski, S. K. Solanki, J. Stepan, L. Teriaca, J. Trujillo Bueno

(c) An extreme-UV imaging polarimeter based on a 30 cm telescope that combines high throughput in the extreme UV with polarimetry to connect the magnetic measurements of the other two instruments.

Solar and Stellar Astrophysics