The nearby galaxy NGC 6946 was observed with the WIRC instrument aboard the Hale 200" during the period Aug 4-7, 2003. The reductions have been revisited using updated methods and improved calibration. The [FEII] results are given in this document. For details of the (horrific) data reduction, see N6946 WIRC Reductions.
 Near-infrared NGC 6946 as seen with the Hale 200" telescope . The 1 micron window, shown in Blue, comes from the J-band, the 1.6 micron window (Green) from a FeII+continuum narrowband filter, and the 2.2 micron window (Red), from the H2(1-0)+continuum narrowband filter. The FOV is 8.2 arcmin. |
NGC 6946 as seen with 2MASS. Details given here: N6946. |
 [FeII] + 1.6um Continuum. The fov is about 9 arcmin. |
 1.6um continuum |
 FeII Line Emission. The image is gaussian smoothed with sigma = 2.5 pixels. 2MASS-detected stars are masked. |
 FeII Line Emission w/SNRs overlayed. |
 FeII flux SB vs. position. Circular aperture radius = 5.0 pixels = 1.24 arcsec. |
 FeII plus H-alpha. The green arrows denote the positions of bright FeII knots. |
 H2(1-0) combined |
 K-band continuum: combined Kcont + Ks |
 H210 Line Emission, from the full combination |
 H2(1-0) Line Emission w/SNRs overlayed. |
 H2(1-0) flux SB vs. position. Circular aperture radius = 5.0 pixels = 1.24 arcsec. |