Table 8: Star-formation rates for NGC 2903 derived from different spectral regimes.
Spectral regime Luminosity SF rate Ref.a
  [erg s-1] [$M_\odot$ yr-1]  
H$\alpha $ 2.5  $\times~10^{41}$ 2.2 1
    1.4 2
FIR 3.4  $\times~10^{43}$ 5.7 3
X-rays (1.2-1.8)  $\times~10^{40}$ 1.4-2.0 4
a References:
1) Luminosity: Jackson et al. (1991);
IMF: Kennicutt (1983).
2) Luminosity: Jackson et al. (1991);
IMF: Pogge & Eskridge (1987).
3) Luminosity: Rice et al. (1988);
$L_{\rm FIR}$-SFR relation: Thronson & Telesco (1986).
4) Luminosity: this work;
$L_{\rm X}$-SFR relation: Junkes et al. (1995).

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