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X-ray measurements of the field and particle energy distributions in the west lobe of the radio galaxy NGC 1316 (Fornax A)
M. Tashiro, K. Makishima, N. Iyomoto +2
A follow-up X-ray study was made of the west lobe of the radio galaxy Fornax A, (NGC 1316) based on new ASCA observations made in 1997 for 98 ks, and incorporating the previous obs…
Study of the Long-Term X-Ray Variability of a Possible Quasar RX J0957.9+6903 with ASCA
Yu-ichiro Ezoe, Naoko Iyomoto, Kazuo Makishima
Long-term variability and spectral properties of a possible quasar, RX J0957.9+6903, were studied, utilizing 16 ASCA observations spanning 5.5 years. The average 0.7--10 keV spectr…
Long-Term Variability of the Low-Luminosity Active Galactic Nucleus of M81
Naoko Iyomoto, Kazuo Makishima
Long-term X-ray variability of the low-luminosity active galactic nucleus of M81 was studied, using 16 ASCA observations spanning 5.5 years. The object exhibits a factor three vari…
Heavy X-ray Absorption in Soft X-ray Weak Active Galactic Nuclei
S. C. Gallagher, W. N. Brandt, A. Laor +4
Recent ROSAT studies have identified a significant population of Active Galactic Nuclei (AGN) that are notably faint in soft X-rays relative to their optical fluxes. Are these AGN…