395 citations · 2.6k across the 82 of their papers we have counts for
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Smooth X-ray variability from Ophiuchi A+B. A strongly magnetized primary B2 star?
Ignazio Pillitteri, Scott J. Wolk, Alyssa Goodman +1
X-rays from massive stars are ubiquitous yet not clearly understood. In an XMM-Newton observation devoted to observe the first site of star formation in the Ophiuchi dark cloud…
No X-rays from WASP-18. Implications for its age, activity, and the influence of its massive hot Jupiter
Ignazio Pillitteri, Scott J. Wolk, Salvatore Sciortino +1
About 20% out of the known exoplanets are Jupiter analogs orbiting very close to their parent stars. It is still under debate to what detectable level such hot Jupiters pos…
X-ray Detection of the Cluster Containing the Cepheid S Mus
Nancy Remage Evans, Ignazio Pillitteri, Scott J. Wolk +7
The galactic Cepheid S Muscae has recently been added to the important list of Cepheids linked to open clusters, in this case the sparse young cluster ASCC 69. Low-mass members of…
The corona of HD 189733 and its X-ray activity
I. Pillitteri, S. J. Wolk, J. Lopez-Santiago +5
Abridged. Here we report on the X-ray activity of the primary star, HD189733 A, using a new XMM-Newton observation and a comparison with the previous X-ray observations. The spectr…
Symbiotic stars in X-rays II: faint sources detected with XMM-Newton and Chandra
N. E. Nuñez, G. J. M. Luna, I. Pillitteri +1
We report the detection, with and XMM-, of faint, soft X-ray emission from four symbiotics stars that were not known to be X-ray sources. These four o…