Gas Disks and Supermassive Black Holes in Nearby Radio Galaxies

Intensity (erg s −1 cm −2 Å −1 arcsec −2 )
v r (km s −1 )
8•10 −15
6•10 −15
4•10 −15
2•10 −15
3800
3600
3400
3200
0
−2•10 −15
Reduced 2−D Spectrum
Single Gaussian per Line Fit
v r
X = −0.2
Y (arcsec)
0.91
0.41
-0.10
-0.61
Hα+[NII] & [SII] − Narrow Line Fit
σ gas
v r
+0.2 0.0 -0.2
X (arcsec)
6584 6638 6691 6745 6799 6852 6906
Wavelength (Angstroms)
X = 0.0
X = +0.2
−1.01 −0.34 0.34 1.01
Y (arcsec)
σ gas (km s −1 )
400
300
200
100
0
0.5"
X = −0.2
X = 0.0
X = +0.2
−1.01 −0.34 0.34 1.01
Y (arcsec)
Intensity (erg s −1 cm −2 Å −1 arcsec −2 )
F (10 −14 ergs s −1 cm −2 Hz −1 )
8•10 −15
6•10 −15
4•10 −15
2•10 −15
0.8
0.6
0.4
0.2
0.0
−0.2
9
7
5
3
1
−1
0.9
0.7
0.5
0.3
0
−2•10 −15
σ gas
+0.2 0.0 -0.2
X (arcsec)
[NII] 6585 Flux
X = −0.2
X = 0.0
X = +0.2
0.1
−0.1
−1.01 −0.34 0.34 1.01
Y (arcsec)
F([NII] 6585)
+0.2 0.0 -0.2
X (arcsec)
Hα+[NII] & [SII] − Narrow & Broad Cpt. Fit
[NII] 6585/Hα
10.0
1.0
0.1
F([NII])/F(Hα)
+0.2 0.0 -0.2
X (arcsec)
6584 6638 6691 6745 6799 6852 6906
Wavelength (Angstroms)
[NII]/Hα
X = −0.2
X = 0.0
X = +0.2
−1.01 −0.34 0.34 1.01
Y (arcsec)
Figure 3.22 Observation and fit data for NGC 7626, see Figure 3.1 for description.
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