منابع مشابه
An X–ray View of WLRGs/LINERs
We present X–ray observations of nine Weak-Line Radio Galaxies (WLRGs), optically classified as confirmed or possible Low Ionization Nuclear Emission– line Regions (LINERs). The data were taken from the Chandra, XMM–Newton, and BeppoSAX archives. The Chandra images typically show complex X-ray morphologies, with hard (2–10 keV) point sources embedded in diffuse soft (0.3– 2.0 keV) emission in a...
متن کاملAn X-ray View of Radio Sources
We review recent examples where the synergy between radio and X-ray observations has led to substantial progress in understanding astronomical systems. The sub-arcsecond imaging capabilities of the Chandra X-ray observatory provides a 100-fold improvement for comparing X-ray and radio structures. We specifically discuss examples which provide insight into the outflow of material and energy from...
متن کاملThe Nonlinear Long - term X - ray Variability of Mrk 421
In this work, I present the results of a thorough nonlinear time series analysis study concerning the long-term variability behaviour of Mrk 421. I use all the archival data obtained by the proportional counter array (PCA) and the all-sky monitor (ASM) aboard the Rossi X-ray timing explorer (RXTE), since 1996. Linearity and stationarity tests reveal that the long-term timing properties of the s...
متن کاملLong - Term X - Ray and Tev Variability of Mrk 501
We present X-ray observations of the nearby TeV blazar Mrk 501 obtained with RXTE during 1997, 1998, 1999, 2000, and 2004. The goal of this study is twofold: 1) characterize the long-term X-ray flux and spectral variability of the source with a model-independent analysis, and 2) investigate the X-ray and TeV correlation on long timescales (> days). Significant spectral variations were observed ...
متن کاملThe broad - band X - ray spectrum of Mrk 3
We have used non-simultaneous Ginga, ASCA and ROSAT observations to investigate the complex X-ray spectrum of the Seyfert 2 galaxy Mrk 3. We find that the composite spectrum can be well described in terms of a heavily cut-off hard X-ray continuum, iron Kα emission and a soft X-ray excess, with spectral variability confined to changes in the continuum normalisation and the flux in the iron line....
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Astronomy & Astrophysics
سال: 2005
ISSN: 0004-6361,1432-0746
DOI: 10.1051/0004-6361:20053882