Abstract
Observations of circumstellar disks provide a powerful tool for our
understanding of planetary system 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
disks 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. 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 as 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.
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