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Implications of the non-detection of X-ray emission from HD 149427

Luna, G. J. M.; Stute, M.

HD 149427 is a very enigmatic object. It has been classified either as a planetary nebula or as a D'-type symbiotic star. Its distance is also highly uncertain. Furthermore, HD 149427 is a potential jet source. We report the non-detection of X-ray emission from HD 149427 and explore the implications to its nature. We observed the object with XMM-N…

X-Ray Rotational Modulation in VXR45

Micela, G.; Peres, G.; Sciortino, S. +1 more

We present evidence of X-ray rotational modulation on VXR45, a young very fast rotator star member of IC2391 open cluster, observed with XMM-Newton observatory.