# On the enlargement of habitable zones around binary stars in hostile environments

## TL;DR

This paper examines whether habitable zones around binary stars in dense regions are larger, concluding that such enlargement is generally unlikely unless specific orbital conditions are met, emphasizing the importance of orbital dynamics.

## Contribution

It provides a detailed analysis showing that habitable zone enlargement around binary stars is rare and depends on specific orbital configurations and climate inertia.

## Key findings

- Extended habitable zones are generally not feasible around binary stars in dense regions.
- Near-circular orbits are required for habitable zone enlargement.
- High climate inertia is necessary for habitability in most cases.

## Abstract

We investigate the hypothesis that the size of the habitable zone around hardened binaries in dense star-forming regions increases. Our results indicate that this hypothesis is essentially incorrect. Although certain binary star configurations permit extended habitable zones, such setups typically require all orbits in a system to be near circular. In all other cases planets can only remain habitable if they display an extraordinarily high climate inertia.