Browsing Naturwissenschaften, Mathematik und Informatik by Advisor "Peter, Hardi Prof. Dr."
Now showing items 1-8 of 8
-
Global scale magnetic field extrapolation in the solar corona using a Yin Yang grid
(2024-05-06)The solar magnetic field significantly influences and structures the solar coronal plasma as magnetic forces are the dominant forces within the solar corona. Therefore, an in-depth understanding of the phenomena that occur ... -
Small-scale dynamo in cool main-sequence stars
(2023-04-13)Cool stars have an outer convection zone which can produce magnetic fields. These fields have a large scale component that is dependent on the solar cycle, as well as small-scale component largely independent of the cycle. ... -
A coronal loop in a box: From energy generation to coronal emission
(2023-03-17)The corona is the outer atmosphere of the Sun. It contains an abundance of bright arcs that consist of hot plasma trapped by the magnetic field. These coronal loops are heated to temperatures far surpassing the solar surface ... -
Modelling the corona of stars more active than the Sun using 3D MHD simulations
(2021-06-10)Cool stars like our Sun are surrounded by coronae with temperatures up to several million Kelvin. After decades of research, there has been no definite explanation as to why the coronae of stars are several orders of ... -
Small-scale structures in the upper atmosphere of the Sun
(2017-06-14)Context: Numerous small-scale structures with sizes of the order of megameters (Mm), constitute the background for the large-scale structures in the solar atmosphere. Although these features are small, their large ... -
Coronal dynamics driven by magnetic flux emergence
(2015-11-09)The corona is the Sun’s outer atmosphere which is more than 100 times hotter than the solar surface. It can be brilliantly observed in the extreme-ultraviolent (EUV) and soft X-ray passbands. What heats the corona is one ... -
Observationally driven 3D MHD model of the solar corona above a magnetically active region
(2014-07-15)Context: The corona of the Sun can be observed since 1932 with instruments occulting the solar disc. Only few years later it became clear that the corona is way hotter than the visible solar surface and since then, the ... -
The response of the corona to different spatial distributions of heat input
(2014-04-09)Explaining the existence of the million degree corona on top of the much cooler Solar surface has provided scientist with a challenge for a several decades. It is not possible for a cooler object to heat something that ...