XMM-Newton observations of the young open cluster around λ Orionis ,

@article{Franciosini2011XMMNewtonOO,
  title={XMM-Newton observations of the young open cluster around $\lambda$ Orionis ,},
  author={E. Franciosini and Guido Garay Osservatorio Astrofisico di Arcetri and Florence and Italy. and Chester F. Carlson Center for Imaging Science and Rochester Institute of Technology and Rochester and Usa},
  journal={Astronomy and Astrophysics},
  year={2011},
  volume={530}
}
Aims. We studied the X-ray properties of the young (∼1−8 Myr) open cluster around the hot (O8 III) star λ Ori and compared them with those of the similarly-aged σ Ori cluster to investigate possible effects of the different ambient environment. Methods. We analysed an XMM-Newton observation of the cluster using EPIC imaging and low-resolution spectral data. We studied the variability of detected sources, and performed a spectral analysis of the brightest sources in the field using multi… 
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