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Paper: Molecular Gas in Narrow-Line Seyfert 1 Galaxies: A Search for Coevolving Massive Black Holes and Galaxies
Volume: 399, Panoramic Views of Galaxy Formation and Evolution
Page: 427
Authors: Kawaguchi, T.; Nakanishi, K.; Kohno, K.; Ohta, K.; Aoki, K.
Abstract: In order to investigate how the growth of galactic bulges progresses with the growth of central black holes (BHs), we observed molecular gas (fuel for the upcoming star formation) in narrow-line Seyfert 1 galaxies (NLS1s, possibly young active galaxies). We present the results of radio observations of 12CO (1→0) line using the Nobeyama Millimeter Array for two far infrared (FIR)-bright NLS1s, yielding the first detection of their CO emission. Corresponding molecular-gas masses M(H2) of (1–3) 109M are the 2nd- and 4th-largest among NLS1s. We found that these M(H2) amounted to 13%-35% of their dynamical or bulge masses.
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