136 citations · 336 across the 7 of their papers we have counts for
7 papers
New Observational Constraints on the Winds of M Dwarf Stars
Brian E. Wood, Hans-Reinhard Mueller, Seth Redfield +8
High resolution UV spectra of stellar H I Lyman-alpha lines from the Hubble Space Telescope (HST) provide observational constraints on the winds of coronal main sequence stars, tha…
X-ray Photoevaporation-starved T Tauri Accretion
Jeremy J. Drake, Barbara Ercolano, Ettore Flaccomio +1
X-ray luminosities of accreting T Tauri stars are observed to be systematically lower than those of non-accretors. There is as yet no widely accepted physical explanation for this…
Coronal Structure and Abundances in Young Fast Rotators
D. Garcia-Alvarez, J. J. Drake, V. L. Kashyap +2
AB Dor, Speedy Mic and Rst137B are in their early post-T Tauri evolutionary phase (<100Myr), at the age of fastest rotation in the life of late-type stars. They straddle the corona…
Evidence of the FIP effect in the coronae of late-type giants
D. Garcia-Alvarez, J. J. Drake, B. Ball +2
Cet, 31 Com and Vel represent the main stages through which late-type giants evolve during their lifetime (the Hertzsprung gap (31 Com), the rapid braking zone ( Vel) an…
X-ray Diagnostics of Grain Depletion in Matter Accreting onto T Tauri Stars
Jeremy J. Drake Paola Testa Lee Hartmann
Recent analysis of high resolution Chandra X-ray spectra has shown that the Ne/O abundance ratio is remarkably constant in stellar coronae. Based on this result, we point out the u…
The Coronae of AB Dor and V471 Tau: Primordial angular momentum vs tidal spin-up
D. Garcia-Alvarez, J. J. Drake, L. Lin +2
The zero-age main-sequence star AB Dor and the K dwarf component of the V471 Tau close binary have essentially identical rotation rates and spectral types. An analysis of their hig…