Title of article :
Probing the cosmic ray population of the giant elliptical galaxy M 87 with observed TeV (gamma)-rays
Author/Authors :
En?lin، T. A. نويسنده , , Pfrommer، C. نويسنده ,
Issue Information :
روزنامه با شماره پیاپی سال 2003
Abstract :
We present evidence of X-ray rotational modulation on VXR45, a young fast rotator star, member of IC 2391. It is a dG9 spectral type star whose rotational period and X-ray luminosity make it a supersaturated star. Our X-ray observation, made with EPIC/PN on XMM-Newton, covers about two photometric rotational periods. The detection of X-ray rotational modulation implies the presence of structural inhomogeneities. Possible interpretations are presented and discussed.
Keywords :
Theory , (gamma)-Rays , galaxies , Individual , M 87 , cooling flows , intergalactic medium , Radiation mechanisms , non-thermal , cosmic rays
Journal title :
Astronomy and Astrophysics
Journal title :
Astronomy and Astrophysics
