activity
19992026
most citedLarge-scale magnetic topologies of mid-M dwarfs

465 citations · 3.7k across the 61 of their papers we have counts for

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Showing 2008Show all

8 papers · 1 filter

astro-ph2008

CoRoT measures solar-like oscillations and granulation in stars hotter than the Sun

E. Michel, A. Baglin, M. Auvergne +2

Oscillations of the Sun have been used to understand its interior structure. The extension of similar studies to more distant stars has raised many difficulties despite the strong…

astro-ph2008★ 3 cited

The seismology programme of CoRoT

E. Michel, A. Baglin, M. Auvergne +1

We introduce the main lines and specificities of the CoRoT Seismology Core Programme. The development and consolidation of this programme has been made in the framework of the CoRo…

astro-ph2008★ 59 cited

EK Eridani: the tip of the iceberg of giants which have evolved from magnetic Ap stars

M. Aurière, R. Konstantinova-Antova, P. Petit +8

We observe the slowly-rotating, active, single giant, EK Eri, to study and infer the nature of its magnetic field directly. We used the spectropolarimeter NARVAL at the Telescope B…

astro-ph2008★ 339 cited

Large-scale magnetic topologies of early M dwarfs

JF Donati, J Morin, P Petit +12

We present here additional results of a spectropolarimetric survey of a small sample of stars ranging from spectral type M0 to M8 aimed at investigating observationally how dynamo…

astro-ph2008★ 465 cited

Large-scale magnetic topologies of mid-M dwarfs

J. Morin, J. -F. Donati, P. Petit +13

We present in this paper the first results of a spectropolarimetric analysis of a small sample (~ 20) of active stars ranging from spectral type M0 to M8, which are either fully-co…

astro-ph2008★ 275 cited

Toroidal versus poloidal magnetic fields in Sun-like stars: a rotation threshold

P. Petit, B. Dintrans, S. K. Solanki +8

From a set of stellar spectropolarimetric observations, we report the detection of surface magnetic fields in a sample of four solar-type stars, namely HD 73350, HD 76151, HD 14623…

astro-ph2008

Wave chaos in rapidly rotating stars

F. Lignieres, B. Georgeot

Effects of rapid stellar rotation on acoustic oscillation modes are poorly understood. We study the dynamics of acoustic rays in rotating polytropic stars and show using quantum ch…

astro-ph2008★ 77 cited

Regular patterns in the acoustic spectrum of rapidly rotating stars

D. Reese, F. Lignières, M. Rieutord

Context: Rapid rotation modifies the structure of the frequency spectrum of pulsating stars, thus making mode identification difficult. Aims: We look for new forms of organisation…