XMM-Newton Proposal 03024201

Physics

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Active Galactic Nuclei, Quasars, Bl-Lac Objects, X-Ray Background, Pox52, Xmm-Newton Proposal 03024201

Scientific paper

POX 52 is a Narrow-Line Seyfert 1 galaxy with extreme and unusual properties. Its black hole mass, estimated from the optical spectrum of the AGN, is only ~10^5 solar masses; its host galaxy is a dwarf elliptical with a velocity dispersion of only 36+/-5 km/s; and it is radiating at L/L_Edd ~ 1. POX 52 offers a unique opportunity to study black hole accretion at high accretion rates in a mass range that has barely been explored previously. We request 100 ksec of EPIC-pn observations of this unique AGN in order to characterize its X-ray spectrum and absorption, to search for Fe K line emission, to study its variability properties, and to search for quasi-periodic oscillations with the aim of better constraining the black hole mass.

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