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Stellar Magnetic Fields: Measurements and Diagnostics
1988Magnetic fields are central to our understanding of surface activity in cool stars. This paper reviews recent progresses in the measurements of photospheric magnetic fields and stresses some of the main difficulties in the analysis of magnetic field observations.
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Stellar Magnetic Fields, Origin and Structure
1988The accumulating observational data point clearly to a basic picture of stellar activity dominated by magnetic fields maintained by dynamo action, dependent on the star’s rotation. There is some tentative evidence that in the pre-main sequence phase there is also some primeval magnetic flux, which may be dynamically significant for the T Tauri ...
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Stellar Winds, Magnetic Fields and Disks
2013All main sequence stars lose mass via stellar winds. The winds of cool stars like the sun are driven by gas pressure gradient. However, the winds of hot massive stars which tend to be luminous are driven by emitted by the star radiation pressure. Mass loss from such winds are significantly higher.
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Spin-down by dynamo action in simulated radiative stellar layers
Science, 2023Ludovic Petitdemange +2 more
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Magnetic fields in stellar radiative interiors
Understanding dynamical processes taking place below the surface of stars is key for a better estimate of stellar ages. The recent measurement of low-and intermediate-mass stars’ slow core rotation during the evolved stages of their evolution shows the need for strong angular momentum transport processes from the core to the envelope. Internal magneticopenaire +1 more source