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The magnetic fields of accreting T Tauri stars
S. G. Gregory, S. P. Matt, J. -F. Donati +1
Models of magnetospheric accretion on to classical T Tauri stars often assume that the stellar magnetic field is a simple dipole. Recent Zeeman-Doppler imaging studies of V2129 Oph…
X-Ray flares in Orion Young Stars. II. Flares, Magnetospheres, and Protoplanetary Disks
Konstantin V. Getman, Eric D. Feigelson, Giuseppina Micela +3
We study the properties of powerful X-ray flares from 161 pre-main sequence (PMS) stars observed with the Chandra X-ray Observatory in the Orion Nebula region. Relationships betwee…
The non-dipolar magnetic fields of accreting T Tauri stars
S. G. Gregory, S. P. Matt, J. -F. Donati +1
Models of magnetospheric accretion on to classical T Tauri stars often assume that stellar magnetic fields are simple dipoles. Recently published surface magnetograms of BP Tau and…
Coronal structure of the cTTS V2129 Oph
M. M. Jardine, S. G. Gregory, J. -F. Donati
The nature of the magnetic coupling between T Tauri stars and their disks determines not only the mass accretion process but possibly the spin evolution of the central star. We hav…
Magnetic topologies of cool stars
J. -F. Donati, M. M. Jardine, P. Petit +14
Stellar magnetic fields can be investigated using several, very complementary approaches. While conventional spectroscopy is capable of estimating the average magnetic strength of…
Rotational Modulation of X-ray Emission from T Tauri Stars
S. G. Gregory, M. Jardine, A. Collier Cameron +1
We have modeled the rotational modulation of X-ray emission from T Tauri stars assuming that they have isothermal, magnetically confined coronae. By extrapolating surface magnetogr…