Nir Line Observations of Starburst Galaxies

摘要: We have obtained images of the H2 and Brγ emission lines in galaxy interacting system NGC 3690 + IC 694. also simultaneous H- K-band spectra for three its 2μm continuum peaks. The most detectable line is concentrated at Therefore, as well stellar absorption can be used tracers activity nuclei themselves. From strong marginal detection Br10 nucleus 694, we derive a large extinction fully ionized gas this nucleus. If adopt [Fe II]1.64μm emission, extinction-corrected II]1.64μm/Brγ ratio will lie higher end starburst galaxies, typical AGNs or AGN/starburst composites. This might imply that many SNRs are involved nucleus, unless it includes an AGN. All our results Component C, including very little CO K band, EW(Brγ, small H2/Brγ ratio, effective temperature (T eff ≃ 40,000K) derived from Hel 1.70μm/Br 10 2.06μm/Brγ, consistent with young starburst.