Astronomy and Astrophysics – Astrophysics
Scientific paper
2003-08-06
Astron.J.126:2299,2003
Astronomy and Astrophysics
Astrophysics
22 pages, 4 figures, to appear in AJ
Scientific paper
10.1086/378906
We have obtained adaptive optics, high spatial resolution (0.15 arcsecond) K-band spectra and images of the region around the two active nuclei in NGC 6240 which show the presence of circumnuclear shocks. The data are consistent with the thermal excitation mechanism being the dominant one in the nuclear region. UV fluorescence and associative detachment may also contribute to the fraction of the energy emitted through molecular hydrogen transitions. The near-IR continuum emission appears closely associated with the two active nuclei. The morphological similarities between the near-IR images and the Chandra X-ray images indicate the same mechanisms may be responsible for the emission in near-IR and X-ray band.
Bogdanovic Tamara
Ge Jian
Max Claire Ellen
Raschke Lynne M.
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