64 citations · 137 across the 4 of their papers we have counts for
4 papers
X-ray variability of HD 189733 across eight years of XMM-Newton observations
I. Pillitteri, G. Micela, A. Maggio +2
The characterization of exoplanets, their formation, evolution, and chemical changes is tightly linked to our knowledge of their host stars. In particular, stellar X-rays and UV em…
Further X-ray detections of Herbig stars
B. Stelzer, J. Robrade, J. H. M. M. Schmitt +1
The interpretation of X-ray detections from Herbig Ae/Be stars is disputed as it is not clear if these intermediate-mass pre-main sequence stars are able to drive a dynamo and ensu…
XMM-Newton observations of the sigma Ori cluster. II. Spatial and spectral analysis of the full EPIC field
E. Franciosini, R. Pallavicini, J. Sanz-Forcada
We present the results of an XMM-Newton observation of the young (~2-4 Myr) cluster around the hot star sigma Orionis. In a previous paper we presented the analysis of the RGS spec…
Spectral Indications of Density Variability in the Corona of AD Leonis
A. Maggio, J. -U. Ness
Direct comparison of high-resolution X-ray spectra of the active dMe star AD Leo, observed three times with Chandra, shows variability of key density-sensitive lines, possibly due…