395 citations · 2.2k across the 63 of their papers we have counts for
10 papers · 1 filter
X-ray emission from dense plasma in CTTSs: Hydrodynamic modeling of the accretion shock
G. G. Sacco, C. Argiroffi, S. Orlando +3
High spectral resolution X-ray observations of CTTSs demonstrate the presence of plasma at T~2-3X10^6 K and n_e~10^11-10^13 cm^-3, unobserved in non-accreting stars. Stationary mod…
Modeling X-ray emission from stellar coronae
S. G. Gregory, M. Jardine, C. Argiroffi +1
By extrapolating from observationally derived surface magnetograms of low-mass stars we construct models of their coronal magnetic fields and compare the 3D field geometry with axi…
Optical spectroscopy of X-ray sources in the Taurus molecular cloud: discovery of ten new pre-main sequence stars
L. Scelsi, G. Sacco, L. Affer +4
We have analyzed optical spectra of 25 X-ray sources identified as potential new members of the Taurus molecular cloud (TMC), in order to confirm their membership in this SFR. Fift…
The flaring and quiescent components of the solar corona
C. Argiroffi, G. Peres, S. Orlando +1
The solar corona is a template to understand stellar activity. The Sun is a moderately active star, and its corona differs from active stars: active stellar coronae have a double-p…
Simbol-X capability of detecting the non-thermal emission of stellar flares
C. Argiroffi, G. Micela, A. Maggio
We investigate the capability of detecting, with Simbol-X, non-thermal emission during stellar flares, and distinguishing it from hot thermal emission. We find that flare non-therm…
X-ray emission from MP Muscae: an old classical T Tauri star
C. Argiroffi, A. Maggio, G. Peres
We study the properties of X-ray emitting plasma of MP Mus, an old classical T Tauri star. We aim at checking whether an accretion process produces the observed X-ray emission and…