منابع مشابه
Extended and Compact X-ray Emission in Powerful Radio Galaxies
We report ROSAT X-ray observations of two powerful radio galaxies. 3C 280 provides evidence for a mixture of unresolved and extended emission, with the latter produced by hot plasma of insufficient pressure to confine the radio lobes and insufficient density for a cooling flow to have begun. 3C 220.3 gives only an X-ray upper limit, but one consistent with our interpretation of the X-ray emissi...
متن کاملThe nature of the absorbing torus in compact Radio Galaxies
We present BeppoSAX observations of the two radio galaxies PKS 1934-63 and S5 1946+708. Strong Iron Kα lines are detected in both objects indicating that the two sources are absorbed by column densities higher than 10 cm−2. Combining radio continuum, HI absorption and X-ray data we can constrain the physical state and the dimensions of the absorber. We find that the putative obscuring torus is ...
متن کاملCompact Radio Cores and Nuclear Activity in Seyfert Galaxies
Using recent high–resolution (<0.1”) radio observations of a large sample of Seyfert galaxies (Roy et al., 1994), we analyze the relations between their compact radio core emission and several nuclear and host galaxy properties (galaxy morphology, optical, infrared, X-ray, extended radio emissions, interaction parameters, and some emission line properties). We apply survival analysis techniques...
متن کاملCompact radio jets and nuclear regions in active galaxies
VLBI observations of relativistic outflows (jets) in galactic nuclei, complemented with detailed studies made in other spectral domains, have become an effective tool for investigating the physics of nuclear regions in galaxies. High-resolution radio observations access directly the regions where the jets are formed, and trace their evolution and interaction with the nuclear environment. The em...
متن کاملBlue Compact Dwarf Galaxies with Spitzer: the Infrared/radio Properties
We study the correlation between the radio, mid-infrared, and far-infrared properties for a sample of 28 blue compact dwarf (BCD) and low-metallicity star-forming galaxies observed by Spitzer. We find that these sources extend the same far-infraredYtoYradio correlation typical of star-forming late-type galaxies to lower luminosities. In BCDs, the 24 m (or 22 m) mid-infraredYtoYradio correlation...
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: Monthly Notices of the Royal Astronomical Society
سال: 1990
ISSN: 0035-8711,1365-2966
DOI: 10.1093/mnras/242.3.379