%% following Line Cannot Be Broken before 80 Char
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چکیده
The 8–13 µm Spectrum of Arp 299C Abstract Arp 299C is a 5 × 10 10 L ⊙ infrared source in the merging galaxy system Arp 299. It is the most luminous object known that is not obviously associated with a galaxy nucleus. Our data show that the 8–13 µm spectrum of Arp 299C has a strong [Ne II] emission line and emission features like those of polycyclic aromatic hydrocarbon (PAH) molecules. These emission features are characteristic of H II regions associated with a burst of star formation. We did not detect any high-excitation ionic lines characteristic of an active galactic nucleus (AGN), nor a deep silicate absorption feature that might indicate a hidden compact nucleus. We deduce that Arp 299C is powered by an intense burst of star formation.
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تاریخ انتشار 1993