# Debris disks among Kepler solar rotational analog stars

## TL;DR

This study searches for debris disks around Kepler stars similar to the Sun using WISE data, finding six stars with infrared excess indicating potentially massive debris disks, shedding light on planetary system evolution.

## Contribution

It is the first systematic search for debris disks around solar analogs in Kepler data, identifying new candidate systems with significant debris.

## Key findings

- Six stars with infrared excess indicating debris disks.
- Disks are more massive and brighter than Solar System zodiacal dust.
- Disks may result from recent collisional events.

## Abstract

Observations of circumstellar disks provide a powerful tool for our understanding of planetary systems dynamics. Analogs to the Solar System asteroid belts, debris disks result from the collision of the remaining solid material of the planet formation process. Even if the presence of disk is now reported for hundreds of stars, its detection around stars similar to the Sun is still very sparse. We report the results of a search for debris disks around Kepler stars with surface physical parameters close to solar values, including rotation period, using observations by the Wide-field infrared Survey Explorer (WISE). From the entire sample of Kepler stars, 881 targets were identified with these parameters and only six of them (KIC 1868785, 7267949, 7435796, 10533222, 11352643, and KIC 11666436) show unambiguous infrared excess, for which we determined debris disk physical parameters. Interestingly, the present study reveals traces of debris disks much more massive and brighter than the Solar System zodiacal dust, probably resulting from recent violent collisional events, orbiting stars with ages around the solar values.