228 citations · 2.5k across the 55 of their papers we have counts for
6 papers · 1 filter
Giant coronal loops dominate the quiescent X-ray emission in rapidly rotating M stars
O. Cohen, R. Yadav, C. Garraffo +5
Observations indicate that magnetic fields in rapidly rotating stars are very strong, on both small and large scales. What is the nature of the resulting corona? Here we seek to sh…
Origin of asymmetries in X-ray emission lines from the blast wave of the 2014 outburst of nova V745 Sco
S. Orlando, J. J. Drake, M. Miceli
The symbiotic nova V745 Sco was observed in outburst on 2014 February 6. Its observations by the Chandra X-ray Observatory at days 16 and 17 have revealed a spectrum characterized…
The Space Weather of Proxima Centauri b
Cecilia Garraffo, Jeremy J. Drake, Ofer Cohen
A planet orbiting in the "habitable zone" of our closest neighboring star, Proxima Centauri, has recently been discovered, and the next natural question is whether or not Proxima b…
Photoevaporation and close encounters: how the environment around Cygnus OB2 affects the evolution of protoplanetary disks
M. G. Guarcello, J. J. Drake, N. J. Wright +10
In our Galaxy, star formation occurs in a variety of environments, with a large fraction of stars formed in clusters hosting massive stars. OB stars have an important feedback on t…
The statistical uncertainties on X-ray flux and spectral parameters from Chandra ACIS-I observations of faint sources: Application to the Cygnus OB2 Association
J. F. Albacete-Colombo, E. Flaccomio, J. J. Drake +3
We investigate the uncertainties of fitted X-ray model parameters and fluxes for relatively faint Chandra ACIS-I source spectra. Monte-Carlo (MC) simulations are employed to constr…
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…