The 1.6 Micron Near-Infrared Nuclei of 3C Radio Galaxies: Jets, Thermal Emission, or Scattered Light?

摘要

We measured infrared nuclear luminosities of 100 3CR radio galax-ies with z<0.3 from HST N1CMOS 2 observations. We modeled and subtracted the infrared galaxy light to isolate and to estimate the nuclear emission. We separated the objects into FR I and FR. II and into LEG (low-excitation galax-ies), HEG (high-excitation galaxies) and BLO (broad-lined objects) with optical spectra. We performed a multi-wavelength analysis of the nuclei of the sample in order to understand the origin of the near infrared emission for each class of AGN.