Astronomy and Astrophysics – Astrophysics
Scientific paper
1999-04-13
Astronomy and Astrophysics
Astrophysics
11 pages, 2 figures, accepted for publication in ApJ (Sept. 1 1999, Vol. 522 #1)
Scientific paper
10.1086/307649
Scanning and pointed RXTE observations of the nearby Seyfert 2 galaxy NGC 6300 reveal that it is a source of hard X-ray continuum and large equivalent width Fe K$\alpha$ emission. These properties are characteristic of Compton-reflection dominated Seyfert 2 galaxies. The continuum can be modeled as Compton-reflection; subsolar iron abundance is required and a high inclination preferred. However, the poor energy resolution of RXTE means that this description is not unique, and the continuum can also be modeled using a ``dual absorber'', i.e. a sum of absorbed power laws. Observations with higher energy resolution detectors will cleanly discriminate between these two models. Optical observations support the Compton-reflection dominated interpretation as $L_X/L_{[OIII]}$ is low. NGC 6300 is notable because with $F_{2-10}\approx 6.4 \times 10^{-12} ergs cm^{-2} s^{-1}$, it is the second brightest such object known.
Awaki Hisamitsu
Cappi Massimo
Halpern Jules P.
Leighly Karen M.
Siebert Joachim
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