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James E. H.Turner JeremyAllington-Smith † ScottChapman ‡ RobertContent ChristineDone RogerHaynes § DavidLee ¶ SimonMorris 《Monthly notices of the Royal Astronomical Society》2002,331(2):284-292
The centre of NGC 4151 has been observed in the J band with the SMIRFS integral field unit (IFU) on the UK Infrared Telescope. A map of [Fe ii ] emission is derived, and compared with the distributions of the optical narrow-line region and radio jet. We conclude that, because the [Fe ii ] emission is associated more closely with the visible narrow-line region than with the radio jet, it arises mainly through photoionization of gas by collimated X-rays from the Seyfert nucleus. The velocity field and strength with respect to Pa β are found to be consistent with this argument. The performance of the IFU is considered briefly, and techniques for observation and data analysis are discussed. 相似文献
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