||Distribution of Molecules in the Circumnuclear Disk and Surrounding Starburst Ring in the Seyfert Galaxy NGC 1068 Observed with ALMA
||499, Revolution in Astronomy with ALMA: The Third Year
||Takano, S.; Nakajima, T.; Kohno, K.; Harada, N.; Herbst, E.; Tamura, Y.; Izumi, T.; Taniguchi, A.; Tosaki, T.
||We report distributions of several molecular transitions
including shock and dust related species
C18O J = 1–0,
13CN N = 1–0,
CS J = 2–1,
SO JN = 32–21,
HNCO JKa,Kc = 50,5–40,4,
HC3N J = 11–10, 12–11,
CH3OH JK = 2K–1K, and
CH3CN JK = 6K–5K)
in the nearby Seyfert 2 galaxy NGC 1068 observed
with ALMA. The central ∼1' (∼4.3 kpc)
of this galaxy was observed in the 100 GHz region with
an angular resolution of ∼4" x 2" (290 pc x 140 pc) to
study the effects of an active galactic nucleus and its
surrounding starburst ring on molecular abundances.
We report a classification of molecular
distributions into three main categories.
Organic molecules such as CH3CN
are found to be concentrated in the circumnuclear disk.
In the starburst ring, the intensity of methanol
at each clumpy region is not consistent with that of