Direct HST Dust Lane Detection in Powerful Narrow-Line Radio Galaxies

Edgar A. Ramírez, Itziar Aretxaga, Clive N. Tadhunter, Enrique Lopez-Rodriguez, Chris Packham
2017 Frontiers in Astronomy and Space Sciences  
We present the analysis of near-infrared Hubble Space Telescope imaging of 10 Fanaroff Riley II powerful radio galaxies at low redshift (0.03 < z < 0.11) optically classified as narrow-line radio galaxies. The photometric properties of the host galaxy are measured using GALFIT, and compared with those from the literature. Our high resolution near-infrared observations provide new and direct information on the central kpc-scale dust lanes in our sample that could be connected to the pc-scale
more » ... s structure. Moreover, analyzing the infrared spectrograph Spitzer spectra of our sample, we suggest properties of the dust size of the torus.
doi:10.3389/fspas.2017.00052 fatcat:pzun5upb3jesbee57g7fod2efm