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| Paper: |
NMA and RAINBOW Observations of CO, HCN, and HCO+ in the Hybrid Seyfert/Starburst Galaxy NGC 7469 |
| Volume: |
249, The Central Kiloparsec of Starbursts and AGN: the La Palma Connection |
| Page: |
686 |
| Authors: |
Okiura, Mahoko; Kohno, Kotaro; Okumura, Sachiko K.; Shibatsuka, Toshihito; Kawabe, Ryohei |
| Abstract: |
We have carried out high-resolution observations of the CO(1 --> 0), HCN, and HCO+ lines in the center of the Type 1 Seyfert galaxy NGC 7469 using the Nobeyama Millimeter Array (NMA) and the RAINBOW interferometer. Our CO map successfully resolves the circumnuclear molecular ring structure with a radius of about 1 farcs 5 (470 pc), which coincides with the starburst ring traced at NIR and radio wavelengths. At the very nucleus, i.e., inside the starburst ring (r < 2 arcsec), the HCN / HCO+ ratio is comparable to that in starburst galaxies. This would suggest that the Seyfert nucleus of NGC 7469 cohabitates with a massive nuclear starburst as described Kohno et al. (these proceedings, p. 672). |
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