# A nonextensive insight to the stellar initial mass function

**Authors:** D. B. de Freitas, R. T. Eufrasio, M. M. F. Nepomuceno, J. R. P. da, Silva

arXiv: 1904.00253 · 2019-05-22

## TL;DR

This paper introduces a nonextensive statistical mechanics approach to modeling the stellar initial mass function (IMF), replacing traditional models with q-Weibull distributions, offering new insights into star formation and evolution.

## Contribution

It proposes using q-Weibull distributions within nonextensive mechanics to better fit the IMF, providing a novel perspective on stellar mass distribution modeling.

## Key findings

- The Salpeter slope of ~2.35 is replaced by a q-Weibull fit.
- The entropic index q offers a new parameter for understanding star formation.
- The model improves the fit to observed stellar mass distributions.

## Abstract

the present paper, we propose that the stellar initial mass distributions as known as IMF are best fitted by $q$-Weibulls that emerge within nonextensive statistical mechanics. As a result, we show that the Salpeter's slope of $\sim$2.35 is replaced when a $q$-Weibull distribution is used. Our results point out that the nonextensive entropic index $q$ represents a new approach for understanding the process of the star-forming and evolution of massive stars.

## Full text

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## Figures

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## References

19 references — full list in the complete paper: https://tomesphere.com/paper/1904.00253/full.md

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Source: https://tomesphere.com/paper/1904.00253