Comment on "An excess of massive stars in the local 30 Doradus starburst"

TL;DR

This paper reanalyzes the stellar initial mass function in 30 Doradus using improved statistical methods, refining the power law exponent and assessing the impact of assumptions on the results.

Contribution

It introduces an improved statistical approach for calculating the stellar initial mass function and evaluates how different assumptions affect the exponent estimation.

Findings

Power law exponent estimated at 2.05 with uncertainties.

Alternative assumptions yield exponents around 2.11 to 2.15.

Refined analysis impacts understanding of star formation in 30 Doradus.

Abstract

Schneider et al. (Science, 2018) used an ad hoc statistical method in their calculation of the stellar initial mass function. Adopting an improved approach, we reanalyse their data and determine a power law exponent of $2.05_{-0.14}^{+0.13}$. Alternative assumptions regarding data set completeness and the star formation history model can shift the inferred exponent to $2.11_{-0.19}^{+0.17}$ and $2.15_{-0.13}^{+0.13}$, respectively.