Abstract
Long-slit spectra at 2.30 and 2.16 μm at a spectral resolution of 1200 are presented for the nucleus and inner disk of the Seyfert 2 galaxy NGC 1068, in order to study the stellar population and the ionized and molecular gas at wavelengths where the extinction is greatly reduced. At 6″-12″ from the nucleus, the CO (ν = 0-2) band head is seen in absorption at a level consistent with that seen in late K or nearly M giants. It is shallower than that of M82, a prototype of starburst galaxies, by ∼ 30%. Closer to the nucleus, the band head appears progressively weaker. This may be due to scattered nuclear light.
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