196 citations · 2.2k across the 75 of their papers we have counts for
4 papers · 1 filter
Stellar flares and the dark energy of CMEs
Jeremy J. Drake, Ofer Cohen, Cecilia Garraffo +1
Flares we observe on stars in white light, UV or soft X-rays are probably harbingers of coronal mass ejections (CMEs). If we use the Sun as a guide, large stellar flares will dissi…
The Missing Magnetic Morphology Term in Stellar Rotation Evolution
Cecilia Garraffo, Jeremy J. Drake, Ofer Cohen
This study examines the relationship between magnetic field complexity and mass and angular momentum losses. Observations of open clusters have revealed a bimodal distribution of t…
Simulating the Environment Around Planet-Hosting Stars - I. Coronal Structure
J. D. Alvarado-Gómez, G. A. J. Hussain, O. Cohen +4
We present the results of a detailed numerical simulation of the circumstellar environment around three exoplanet-hosting stars. A state-of-the-art global magnetohydrodynamic (MHD)…
FK Comae Berenices, King of Spin: The COCOA-PUFS Project
Thomas R. Ayres, V. Kashyap, S. Saar +8
COCOA-PUFS is an energy-diverse, time-domain study of the ultra-fast spinning, heavily spotted, yellow giant FK Com (HD117555; G4 III). This single star is thought to be a recent b…