Global Jet Watch

Research group

Research theme

Sub department

About

Extended inverse-Compton emission from distant, powerful radio galaxies

ArXiv astro-ph/0606238 (2006)

Authors:

MC Erlund, AC Fabian, Katherine M Blundell, A Celotti, CS Crawford

Abstract:

We present Chandra observations of two relatively high redshift FRII radio galaxies, 3C 432 and 3C 191 (z=1.785 and z=1.956 respectively), both of which show extended X-ray emission along the axis of the radio jet or lobe. This X-ray emission is most likely to be due to inverse-Compton scattering of Cosmic Microwave Background (CMB) photons. Under this assumption we estimate the minimum energy contained in the particles responsible. This can be extrapolated to determine a rough estimate of the total energy. We also present new, deep radio observations of 3C 294, which confirm some association between radio and X-ray emission along the NE-SW radio axis and also that radio emission is not detected over the rest of the extent of the diffuse X-ray emission. This, together with the offset between the peaks of the X-ray and radio emissions may indicate that the jet axis in this source is precessing.
Details from ArXiV
More details from the publisher

Extended inverse-Compton emission from distant, powerful radio galaxies

(2006)

Authors:

MC Erlund, AC Fabian, Katherine M Blundell, A Celotti, CS Crawford
More details from the publisher

Discovery of the Low-Energy Cutoff in a Powerful Giant Radio Galaxy

Astrophysical Journal Letters 644 (2006) L13-L16

Authors:

KM Blundell, A.C. Fabian, Carolin S. Crawford, M.C. Erlund
More details from the publisher
More details
Details from ArXiV

Discovery of the low-energy cutoff in a powerful giant radio galaxy

(2006)

Authors:

Katherine Blundell, Andy Fabian, Carolin Crawford, Mary Erlund, Annalisa Celotti
More details from the publisher

Extended inverse compton emission from distant powerful radio galaxies

European Space Agency Special Publication ESA SP 2:604 (2006) 611-612

Authors:

MC Erlund, AC Fabian, KM Blundell, A Celotti, C Crawford

Abstract:

Chandra observations of 3C432, 3C 191 and B2 0902+34 are presented as part of an ongoing search for inverse-Compton scattering of the cosmic microwave background (CMB) from high redshift radio sources (Schwartz, 2000). The energy density of the CMB increases with redshift, z, as (1 + z)4, so the relatively high redshift of these powerful radio galaxies makes them good candidates for detecting extended inverse-Compton scattering along the radio jet axis: we do indeed detect radio-aligned X-ray emission.