Chandra and XMM-Newton Observations of the nuclei of FR I radio galaxies in the 3CR and B2 catalogs

Details Chandra and XMM-Newton Observations of the nuclei of FR I radio galaxies in the 3CR and B2 catalogs Chandra and XMM-Newton Observations of the nuclei of FR I radio galaxies in the 3CR and B2 catalogs

Aug 2004

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004head....8.0416d&link_type=abstract

American Astronomical Society, HEAD meeting #8, #04.16; Bulletin of the American Astronomical Society, Vol. 36, p.911

Astronomy and Astrophysics

Astronomy

Scientific paper

Unification models successfully explain the multitude of radio-loud AGN at higher luminosities, but it is unclear whether they hold at low luminosities. In low-power radio galaxies (FRIs), the presence of the pc-scale molecular torus, obscuring the nucleus, and of the standard optically-thick, geometrically-thin accretion disk were cast into doubt by recent HST observations. The X-rays provide key information for both these issues. We exploit the complementary capabilities of XMM-Newton and Chandra to address the following questions: 1) Is there an obscuring torus in FRIs? 2) What is the origin of the nuclear X-ray emission (jet vs. accretion flow)? and 3) What is the nature of the accretion flow? Additionally, we will search for X-ray emission from the kpc-scale radio jets and study their emission mechanisms.
Financial support from Smithsonian grant GO4-5115A (DD) and NASA LTSA grant NAG5-10708 (MG, RMS) is gratefully acknowledged.

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