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 )
4.5•10 −14
3.5•10 −14
2.5•10 −14
1.5•10 −14
5.0•10 −15
−5.0•10 −15
2000
1800
1600
1400
1200
1000
800
Reduced 2−D Spectrum
Single Gaussian per Line Fit
v r
X = −0.2
Y (arcsec)
0.46
0.20
-0.05
-0.30
Hα+[NII] & [SII] − Narrow Line Fit
σ gas
v r
+0.2 0.0 -0.2
X (arcsec)
6470 6531 6592 6652 6713 6774 6835
Wavelength (Angstroms)
X = 0.0
X = +0.2
−0.51 −0.17 0.17 0.51
Y (arcsec)
σ gas (km s −1 )
1000
800
600
400
200
0
0.5"
X = −0.2
X = 0.0
X = +0.2
−0.51 −0.17 0.17 0.51
Y (arcsec)
Intensity (erg s −1 cm −2 Å −1 arcsec −2 )
F (10 −14 ergs s −1 cm −2 Hz −1 )
4.5•10 −14
3.5•10 −14
2.5•10 −14
1.5•10 −14
5.0•10 −15
−5.0•10 −15
25
20
15
10
5
0
80
60
40
20
0
−20
17.5
12.5
7.5
2.5
σ gas
+0.2 0.0 -0.2
X (arcsec)
[NII] 6585 Flux
X = −0.2
X = 0.0
X = +0.2
−2.5
−7.5
−0.51 −0.17 0.17 0.51
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)
6470 6531 6592 6652 6713 6774 6835
Wavelength (Angstroms)
[NII]/Hα
X = −0.2
X = 0.0
X = +0.2
−0.51 −0.17 0.17 0.51
Y (arcsec)
Figure 3.16 Observation and fit data for NGC 4486, see Figure 3.1 for description.
136