Chandra Observations of 3C Radio Sources with z < 0.3: Nuclei, Diffuse Emission, Jets, and Hotspots
Articolo
Data di Pubblicazione:
2010
Abstract:
We report on our Chandra Cycle 9 program to observe half of the 60 (unobserved by Chandra) 3C radio sources
at z < 0.3 for 8 ks each. Here we give the basic data: the X-ray intensity of the nuclei and any features associated
with radio structures such as hotspots and knots in jets. We have measured fluxes in soft, medium, and hard bands
and are thus able to isolate sources with significant intrinsic column density. For the stronger nuclei, we have
applied the standard spectral analysis which provides the best-fit values of X-ray spectral index and column density.
We find evidence for intrinsic absorption exceeding a column density of 10e22 cm^−2 for one-third of our sources.
Tipologia CRIS:
03A-Articolo su Rivista
Keywords:
galaxies: active , radio continuum: galaxies , X-rays: general
Elenco autori:
F. Massaro;D. E. Harris;G. R. Tremblay;D. Axon;S. A. Baum;A. Capetti;M. Chiaberge;R. Gilli;G. Giovannini;P. Grandi;F. D. Macchetto;C. P. O’Dea;G. Risaliti;W. Sparks
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