activity
19972024
most citedSeismic evidence for a rapidly rotating core in a lower-giant-branch star observed with Kepler

402 citations · 5k across the 157 of their papers we have counts for

collaborators
Showing 2015Show all

10 papers · 1 filter

astro-ph.SR2015★ 15 cited

Asteroseismic inversions for radial differential rotation of Sun-like stars: ensemble fits

Hannah Schunker, Jesper Schou, Warrick Ball +2

Radial differential rotation is an important parameter for stellar dynamo theory and for understanding angular momentum transport. We investigate the potential of using a large num…

astro-ph.SR2015★ 14 cited

Data compression for local correlation tracking of solar granulation

Björn Löptien, Aaron C. Birch, Tom L. Duvall +2

Context. Several upcoming and proposed space missions, such as Solar Orbiter, will be limited in telemetry and thus require data compression. Aims. We test the impact of data compr…

astro-ph.SR2015★ 184 cited

Rotation, differential rotation, and gyrochronology of active Kepler stars

Timo Reinhold, Laurent Gizon

The high-precision photometry from the CoRoT and Kepler satellites has led to measurements of surface rotation periods for tens of thousands of stars. Our main goal is to derive ag…

astro-ph.SR2015★ 16 cited

Anisotropy of the solar network magnetic field around the average supergranule

J. Langfellner, L. Gizon, A. C. Birch

Supergranules in the quiet Sun are outlined by a web-like structure of enhanced magnetic field strength, the so-called magnetic network. We aim to map the magnetic network field ar…

astro-ph.SR2015★ 3 cited

Simulating acoustic waves in spotted stars

Emanuele Papini, Aaron C. Birch, Laurent Gizon +1

Acoustic modes of oscillation are affected by stellar activity, however it is unclear how starspots contribute to these changes. Here we investigate the nonmagnetic effects of star…

astro-ph.SR2015★ 55 cited

Spatially resolved vertical vorticity in solar supergranulation using helioseismology and local correlation tracking

J. Langfellner, L. Gizon, A. C. Birch

Flow vorticity is a fundamental property of turbulent convection in rotating systems. Solar supergranules exhibit a preferred sense of rotation, which depends on the hemisphere. Th…