277 citations · 584 across the 8 of their papers we have counts for
6 papers · 1 filter
NGC 6231: X-ray properties of the early-type star population
H. Sana, Y. Naze, E. Gosset +3
Based on a deep XMM-Newton observation of the young open cluster NGC 6231, we derive the main X-ray properties of its early-type star population. Among the 610 X-ray sources detect…
A Period and a Prediction for the Of?p Spectrum Alternator HD 191612
Nolan R. Walborn, Ian D. Howarth, Gregor Rauw +7
The observational picture of the enigmatic O-type spectrum variable HD191612 has been sharpened substantially. A symmetrical, low-amplitude light curve with a period near 540 d has…
WR20a: a massive cornerstone binary system comprising two extreme early-type stars
G. Rauw, M. De Becker, Y. Naze +6
We analyse spectroscopic observations of WR20a revealing that this star is a massive early-type binary system with a most probable orbital period of \sim 3.675 days. Our spectra in…
An X-ray investigation of the NGC 346 field in the SMC (3): XMM-Newton data
Yaël Nazé, Jean Manfroid, Ian R. Stevens +2
We present new XMM-Newton results on the field around the NGC346 star cluster in the SMC. This continues and extends previously published work on Chandra observations of the same f…
XMM-Newton observations of the giant HII region N11 in the LMC
Y. Naze, I. I. Antokhin, G. Rauw +2
Using the sensitive XMM-Newton observatory, we have observed the giant HII region N11 in the LMC for \sim30 ks. We have detected several large areas of soft diffuse X-ray emission…
HD108: the mystery deepens with XMM-Newton observations
Y. Naze, G. Rauw, J. M. Vreux +1
In 2001, using a large spectroscopic dataset from an extensive monitoring campaign, we discovered that the peculiar Of star HD108 displayed spectacular line variations. This strang…