Deep Chandra and multicolor HST observations of the jets of 3C 371 and PKS 2201+044

C. C. Cheung (3); C. M. Urry (4) ((1) NASA/GSFC; (2) INAF-Osservatorio Astronomico di Brera; (3) NRAO; D. Donato (1); F. Tavecchio (2); L. Maraschi (2); R. M. Sambruna (1); Stanford; (4) Yale)

Deep Chandra and multicolor HST observations of the jets of 3C 371 and PKS 2201+044

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arxiv 0707.3980 v1 pith:K4HVF22B submitted 2007-07-26 astro-ph

R. M. Sambruna (1) , D. Donato (1) , F. Tavecchio (2) , L. Maraschi (2) , C. C. Cheung (3) , C. M. Urry (4) ((1) NASA/GSFC; (2) INAF-Osservatorio Astronomico di Brera; (3) NRAO , Stanford; (4) Yale) This is my paper · ORCID

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keywords jetsemissionmultiwavelengthradiochandrafriisfrisimages

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This paper presents multiwavelength imaging and broad-band spectroscopy of the relativistic jets in the two nearby radio galaxies 3C 371 and PKS 2201+044, acquired with Chandra, HST, VLA, and Merlin. Radio polarization images are also available. The two sources stand out as "intermediate'' between FRIs and FRIIs; their cores are classified as BL Lacs, although broad and narrow optical emission lines were detected at times. The multiwavelength images show jet morphologies with the X-ray emission peaking closer to the nucleus than the longer wavelengths. The jets are resolved at all wavelengths in a direction perpendicular to the jet axis. The jets SEDs are consistent with a single spectral component from radio to X-rays, interpreted as synchrotron emission. The SEDs show a progressive softening from the inner to the outer regions of the jet, indicating that the electron break energy moves to lower energies with distance from the core. Overall, the X-ray and multiwavelength properties of the jets of 3C 371 and PKS 2201+044 appear intermediate between those of FRIs and FRIIs.

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