Astronomy and Astrophysics – Astrophysics
Scientific paper
Jun 2005
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005chjas...5..224y&link_type=abstract
Chinese Journal of Astronomy & Astrophysics, Vol. 5 Supplement, p. 224-228
Astronomy and Astrophysics
Astrophysics
1
Galaxies: Active, Galaxies: Jets, Galaxies: Individual: Oq208, Ngc 4261
Scientific paper
We have investigated the symmetric twin-jets related to innermost region of some AGNs, try to get their Thomson-thick properties. We propose to use radio method to obtain the column densities for 2 sources OQ208 and NGC 4261, the result for OQ208 is consistent with the estimate from X-ray method on average, and the column density for NGC 4261 is a bit less than that from X-ray. Other 2 sources NGC 1052 and Mrk 231 are also discussed. More compact symmetric sources with two-sided jets could be suitable to be used to study Thomson-thick/thin AGN properties in future.
Liu Xiandong
Yang Jaek-Jin
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