The emission from the photosphere of stars shows a systematic center-to-limb variation. In cool main-sequence stars, the near-surface convection has an impact on this variation, with implications for lightcurves of stars during planetary transits. In the Sun, there is strong evidence for a small-scale dynamo (SSD) maintaining the small-scale magnetic flux. We aim to investigate what additional effects such a field would play for other cool main-sequence stars. In our work we first concentrate on F-stars. This is because they have sonic velocities near the surface, implying a rough equipartition between internal and kinetic energies. In addition, an SSD might create a significant magnetic energy density to impact the results. We investigate ...
The tachocline region inside the Sun, where the rigidly rotating radiative core meets the differenti...
International audienceMagnetic activity and differential rotation are commonly observed features on ...
Context. Several solar-like stars exhibit cyclic magnetic activity similar to the Sun as found in ph...
Some of the small-scale solar magnetic flux can be attributed to a small-scale dynamo (SSD) operatin...
A widely accepted explanation for the origin of the ubiquitous small-scale magnetic field observed o...
Context. The convective envelopes of cool main-sequence stars harbour magnetic fields with a complex...
The objective of this paper is to investigate whether a convective dynamo can account quantitatively...
Context. Magnetic fields affect the local structure of the photosphere of stars. They can considerab...
All cool main sequence stars including our Sun are thought to have magnetic fields. Observations of ...
Contact between numerical simulations and observations of stellar magnetism is sought, with an empha...
Context.Observations indicate that the “quiet” solar photosphere outside active regions contains c...
Context. The Sun and other cool stars harbouring outer convection zones manifest magnetic activity i...
The question of possible small-scale dynamo action in the surface layers of the Sun is revisited wit...
Context. Regions of quiet Sun generally exhibit a complex distribution of small-scale magnetic field...
Context. Observations of the Sun tell us that its granular and subgranular small-scale magnetism has...
The tachocline region inside the Sun, where the rigidly rotating radiative core meets the differenti...
International audienceMagnetic activity and differential rotation are commonly observed features on ...
Context. Several solar-like stars exhibit cyclic magnetic activity similar to the Sun as found in ph...
Some of the small-scale solar magnetic flux can be attributed to a small-scale dynamo (SSD) operatin...
A widely accepted explanation for the origin of the ubiquitous small-scale magnetic field observed o...
Context. The convective envelopes of cool main-sequence stars harbour magnetic fields with a complex...
The objective of this paper is to investigate whether a convective dynamo can account quantitatively...
Context. Magnetic fields affect the local structure of the photosphere of stars. They can considerab...
All cool main sequence stars including our Sun are thought to have magnetic fields. Observations of ...
Contact between numerical simulations and observations of stellar magnetism is sought, with an empha...
Context.Observations indicate that the “quiet” solar photosphere outside active regions contains c...
Context. The Sun and other cool stars harbouring outer convection zones manifest magnetic activity i...
The question of possible small-scale dynamo action in the surface layers of the Sun is revisited wit...
Context. Regions of quiet Sun generally exhibit a complex distribution of small-scale magnetic field...
Context. Observations of the Sun tell us that its granular and subgranular small-scale magnetism has...
The tachocline region inside the Sun, where the rigidly rotating radiative core meets the differenti...
International audienceMagnetic activity and differential rotation are commonly observed features on ...
Context. Several solar-like stars exhibit cyclic magnetic activity similar to the Sun as found in ph...