Table 4: Fluxes, equivalent widths of H$\alpha $ and H$\beta $ emission lines and the extinction coefficient C(H$\beta $) in LSB regions.

Region		 Distancea Apertureb   F(H$\alpha $)c EW(H$\alpha $)d F(H$\beta $)c EW(H$\beta $)d C(H$\beta $)
I -24.4   2.0 $\times$ 4.1   8.0 $\pm$ 0.5 1200.0 $\pm$ 2.5 3.0 $\pm$ 0.5 32.8 $\pm$ 0.8 0.0    
a -12.4   2.0 $\times$ 7.6   50.4 $\pm$ 0.6 78.9 $\pm$ 1.8 17.9 $\pm$ 0.5 14.6 $\pm$ 0.7 0.00 $\pm$ 0.07
b -5.8  2.0 $\times$ 4.1   22.0 $\pm$ 0.6 36.5 $\pm$ 0.8 7.2 $\pm$ 0.6 7.3 $\pm$ 0.5 0.12 $\pm$ 0.07
d   8.0 2.0 $\times$ 5.5   53.9 $\pm$ 0.3 52.4 $\pm$ 2.5 17.1 $\pm$ 0.6 9.9 $\pm$ 0.5 0.15 $\pm$ 0.07
f 23.9 2.0 $\times$ 4.1   13.6 $\pm$ 0.6 16.8 $\pm$ 1.8 2.8: $\pm$ 0.5 3.1 $\pm$ 0.7 0.31: $\pm$ 0.07
g 28.4 2.0 $\times$ 4.8   17.4 $\pm$ 0.6 31.7 $\pm$ 0.8 ...     ...     ...     
h 34.2 2.0 $\times$ 6.9   5.5 $\pm$ 0.3 12.4 $\pm$ 1.9 ...     ...     ...     
II 44.2 2.0 $\times$ 6.2   13.2 $\pm$ 0.3 634.4 $\pm$ 2.5 4.9 $\pm$ 0.6 32.4 $\pm$ 0.5 0.0    
a Distance from region c in arcsec. Negative and positive values correspond to regions located
  respectively to the southwest and northeast from region c.
b Aperture x $\times$ y where x is the slit width and y the size along the slit in arcsec.
c In units 10-16 erg s-1 cm-2.
d In Å.

Source LaTeX | All tables | In the text