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This rotation is a very poor fit. The residuals are far larger than the velocities and there is a sudden dip at 40 arcseconds. The reason for this may be due to the small size of the galaxy and low observed velocities.

Rotation curve fit
Radius (arcseconds)Vrot (km/s)PropertyValue
00.0Systematic velocity1505.86 +/- 3.82 km/s
50.0Heliocentric velocity1508.94 +/- 3.82 km/s
10142.2 +/- 678.9Inclination8.34 +/- 38.95 degrees
2056.0 +/- 275.1R. A.1.32 +/- 3.44 arcseconds
30169.1 +/- 775.2Dec-7.01 +/- 3.35 arcseconds
400.0R. A. (2000)09 35 50.842
500.0Dec (2000)-05 34 48.00
60668.0 +/- 3080.2Position angle126.11 +/- 17.52 degrees
Residual RMS33.41 km/s
Mean velocity error2.57 km/s
Rotation curve plotsParameter table

Velocity FieldsVelocity, Flux, FWHM and Equivalent Width Fields
Without Background ImageWith Background ImageWithout Background ImageWith Background Image
mean, allmean, all[NII] 6548[NII] 6548
Hα 6563Hα 6563
[NII] 6584[NII] 6584
HeI 6678HeI 6678
[SII] 6716[SII] 6716
[SII] 6731[SII] 6731

Other plots
PlotsASCII
Integrated spectraIntegrated spectra
Hα / HI velocity profilesHα / HI velocity profiles

Integrated spectrum emission lines
Emission lineWavelength (Å)FWHM (Å)Flux (counts/s)
[NII] 6548Out of range
Hα 65636595.711.0911797.800
[NII] 6584Out of range
HeI 6678Out of range
[SII] 67166749.380.532205.560
[SII] 67316764.420.500246.980

Integrated Hα properties
PropertyValue
W50max54.07 km/s
W50min54.07 km/s
W20max87.97 km/s
W20min87.97 km/s
Hα heliocentric velocity1505.65 km/s

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Page generated automatically by fields_gen_web.pro on Mon Oct 8 16:53:04 2007