Table 1.
[S IV] and 11.3 μm PAH measurements from the CanariCam nuclear and extended source spectra, and the IRS spectrum.
| Instrument | Aperture size | [S IV]λ10.51 μm |
PAH 11.3 μm |
||||
|---|---|---|---|---|---|---|---|
| L10.51 μm | EW | L11.3 μm | EW | SFR | |||
| (″) | (pc) | (1041 erg s−1) | (μm) | (1041 erg s−1) | (μm) | (M⊙ yr−1) | |
| CanariCam | 0.50 | 400 | 3.10±0.04 | 0.033±0.001 | < 2.05 | < 0.017±0.001 | < 0.45 |
| CanariCam | 1.28 | 940 | 3.01±0.04 | 0.031±0.001 | < 2.37 | < 0.016±0.001 | < 0.52 |
| CanariCam | 1.60 | 1175 | 2.88±0.04 | 0.029±0.001 | < 2.36 | < 0.020±0.001 | < 0.52 |
| IRS | 3.60 | 2650 | 2.70±0.04 | 0.029±0.001 | 10.1±0.1( * ) | 0.049±0.001 | 2.41±1.01 |
Notes. Line fluxes were integrated over a local continuum in the rest-frame ranges [10.3,10.7] and [11.1,11.6] μm. This continuum was determined via linear interpolation of the average flux in two narrow bands on both sides of each feature ([10.0,10.3] and [10.7,11.0] μm for [S IV], and [10.7,11.1] and [11.6,12.0] μm for the PAH). ( * )The PAH luminosity includes a multiplicative factor of two to make it comparable with PAHFIT-derived measurements (Smith et al. 2007). Upper limits at a 2σ significance are indicated with the < symbol for non-detections, where σ is the average of the continuum noise calculated in the two bands adjacent to the PAH. SFRs were calculated from L11.3 μm following Eq. (12) in Shipley et al. (2016) and converted from the Kroupa to Salpeter initial mass function by dividing them by 0.67. Errors were measured using 150 Monte Carlo simulations.
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