Ionized-gas Kinematics Along the Large-scale Radio Jets in Type-2 AGNs

Huynh Anh N. Le, Jong Hak Woo, Donghoon Son, Marios Karouzos, Aeree Chung, Taehyun Jung, Evangelia Tremou, Narae Hwang, Byeong Gon Park

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Abstract

To investigate the connection between radioactivity and active galactic nucleus (AGN) outflows, we present a study of ionized-gas kinematics based on an [O iii] λ5007 emission line along the large-scale radio jet for six radio AGNs. These AGNs are selected based on the radioactivity (i.e., L1.4 GHz ≥1039.8 erg s-1) as well as optical emission-line properties as type-2 AGNs. Using the Red Channel Cross Dispersed Echellette Spectrograph at the Multiple Mirror Telescope, we investigate in detail the [[O iii]] and stellar kinematics. We spatially resolve and probe the central AGN-photoionization sizes, which is important in understanding the structures and evolutions of galaxies. We find that the typical central AGN-photoionization radius of our targets are in range of 0.9-1.6 kpc, consistent with the size-luminosity relation of [O iii] in previous studies. We investigate the [O iii] kinematics along the large-scale radio jets to test whether there is a link between gas outflows in the narrow-line region and extended radio-jet emissions. Contrary to our expectation, we find no evidence that the gas outflows are directly connected to the large-scale radio jets.

Original languageEnglish
Article number8
JournalAstrophysical Journal
Volume851
Issue number1
DOIs
Publication statusPublished - 2017 Dec 10

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All Science Journal Classification (ASJC) codes

  • Astronomy and Astrophysics
  • Space and Planetary Science

Cite this

Le, H. A. N., Woo, J. H., Son, D., Karouzos, M., Chung, A., Jung, T., Tremou, E., Hwang, N., & Park, B. G. (2017). Ionized-gas Kinematics Along the Large-scale Radio Jets in Type-2 AGNs. Astrophysical Journal, 851(1), [8]. https://doi.org/10.3847/1538-4357/aa9656