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- W1644340084 abstract "We present the 0.1–200 keV BeppoSAX spectrum of MR 2251-178 observed at two epochs in 1998 separated by 5 months. Both epochs show identical spectral shape and X-ray flux. Analysis of the combined spectra allow us to confirm the presence of the ionized Fe Kα line detected by ASCA and to test the presence of reflection from ionized material. A good spectral fit is obtained when including a contribution from a mildly ionized reflector (ξ0.01–100keV∼1625 erg cm s−1) with a reflection normalization Rion∼0.11. An exponential cut-off to the direct power-law continuum is then required at E∼100 keV.Finally, we briefly discuss the spectral and variability properties of a second, much weaker X-ray source in the same field of view. This source, EXO 2251.1-1737, most likely is an AGN, although it has so far been classified as a star." @default.
- W1644340084 created "2016-06-24" @default.
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- W1644340084 date "2001-01-01" @default.
- W1644340084 modified "2023-10-16" @default.
- W1644340084 title "BeppoSAX observations of the radio-quiet QSO MR 2251-178" @default.
- W1644340084 doi "https://doi.org/10.1063/1.1419434" @default.
- W1644340084 hasPublicationYear "2001" @default.
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