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Table 1

SFR estimators.


Band log Cband k Method Reference

FUV −36.355 1.0000 Theoreticala 1
Hα −34.270 1.0000 Theoreticala 1
24 μm −29.134 0.8104 Hαb 2
70 μm −29.274 0.8117 Hαb 3
100 μm −37.370 1.0384 Hαb 3


Band log Cband1 kband1−band2 Method Reference

Hα+24 μm −34.270 0.031 Hα 2
FUV+24 μm −36.355 6.175 Hα+24 μm 4

Notes. Monochromatic: log ΣSFR = log Cband + k × log Sband; hybrid: log ΣSFR = log Cband1 + log [Sband1 + kband1−band2 × Sband2], with ΣSFR in M yr-1 kpc-2, S defined as νSν in W kpc-2, and C in M yr-1 W-1. Empirical estimators were calibrated on individual star-forming regions on typical scales of the order of ~200500 pc.


Based on Starburst99 (Leitherer et al. 1999).


Extinction corrected, calibrated against near-infrared hydrogen recombinations lines (e.g., Paα or Brγ).

Reference. (1) Murphy et al. (2011); (2) Calzetti et al. (2007); (3) Li et al. (2013); (4) Leroy et al. (2008).

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