TheXMM-Newtonlong look of NGC 1365: uncovering of the obscured X-ray source
نویسندگان
چکیده
منابع مشابه
The XMM - Newton long look of NGC 1365 : uncovering of the obscured X - ray source
We present an analysis of the extreme obscuration variability observed during an XMM-Newton 5-days continuous monitoring of the AGN in NGC 1365. The source was in a reflection-dominated state in the first ∼ 1.5 days, then a strong increase of the 7-10 keV emission was observed in ∼10 hours, followed by a symmetric decrease. The spectral analysis of the different states clearly shows that this v...
متن کاملX - ray observations of NGC 1365 : time - resolved eclipse of the X - ray source
We present an extraordinary variation of the X-ray spectrum of the obscured AGN in NGC 1365, which was observed by Chandra to change from Compton-thin to Compton-thick and back to Compton-thin in four days. This fast variation imply a a size of ∼ 10 14 cm for the emitting region, and an extremely compact size (∼ 10 16 cm) of the clumpy circumnuclear absorber.
متن کاملThe ROSAT view of NGC 1365 and the luminous highly variable off-nuclear X-ray source NGC 1365–X1
We present an X-ray spectral and spatial analysis of the composite starburst/Seyfert galaxy NGC1365. Excellent fits of the ROSAT PSPC spectrum are obtained by combining a soft thermal component with a hard powerlaw. The hard component may be either seen directly or can be explained by scattering of the AGN powerlaw at circumnuclear warm high-column-density gas. A compilation of the multi-wavele...
متن کاملThe hard X - ray properties of the Seyfert nucleus in NGC 1365
We present BeppoSAX observations of the Seyfert 1.8 galaxy NGC1365 in the 0.1–100 keV range. The source was 6 times brighter than during an ASCA observation 3 years earlier. The 4–10 keV flux is highly variable during the BeppoSAX observation, while the soft (0.1-4 keV) emission is constant within the errors. Both a cold and a warm reflector and a cold absorber are required to explain the obser...
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ژورنال
عنوان ژورنال: Monthly Notices of the Royal Astronomical Society: Letters
سال: 2009
ISSN: 1745-3925,1745-3933
DOI: 10.1111/j.1745-3933.2008.00580.x