J, H, K, and L IR-filter photometric observations of R136 reveal the presence of strong excess radiation produced by stellar wind. Model fitting of the IR continuum is presently used to determine a slope of the velocity variation with radius of 1.0 +0.8 -1.1, a mass loss rate of 0.00052 solar masses/year, and a stellar radius which is determined in an implicit form as a function of the temperature. The UV brightness temperature of 470,000-570,000 K, and total luminosity of 60 million + or - 2 million solar luminosities, confirm that the stellar mass must exceed 2000 solar masses. A combination of the mass loss and luminosity values with those of galactic supergiants yields an M-L relationship whose slope at an alpha value of 1.1 is coincident with that found for main sequence stars.
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Panagia et al. (1983) studied this question.