3 papers
astro-ph1998
The Complex X-ray Spectrum of 3C 273: ASCA Observations
M. Cappi, M. Matsuoka, C. Otani +1
shortened) Results obtained from 9 X-ray observations of 3C 273 performed by ASCA are presented (for a total exposure time of about 160 000 s). The analysis and interpretation of t…
astro-ph1996
Spectral Variability and iron line emission in the ASCA Observations of the Seyfert 1 Galaxy NGC4051
Matteo Guainazzi, Tatehiro Mihara, Chiko Otani +1
We present the results of an extensive analysis of the ``ASCA'' AO2 observation of the Seyfert 1 galaxy NGC4051. The target exhibits broadband [0.5--10 keV] variability by a factor…
astro-ph1995
The variable OVIII Warm Absorber in MCG-6-30-15
C. Otani, T. Kii, C. S. Reynolds +8
We present the results of a 4 day ASCA observation of the Seyfert galaxy MCG-6-30-15, focussing on the nature of the X-ray absorption by the warm absorber, characterizd by the K-ed…