Dataset Information


Evidence for a large exomoon orbiting Kepler-1625b.

ABSTRACT: Exomoons are the natural satellites of planets orbiting stars outside our solar system, of which there are currently no confirmed examples. We present new observations of a candidate exomoon associated with Kepler-1625b using the Hubble Space Telescope to validate or refute the moon's presence. We find evidence in favor of the moon hypothesis, based on timing deviations and a flux decrement from the star consistent with a large transiting exomoon. Self-consistent photodynamical modeling suggests that the planet is likely several Jupiter masses, while the exomoon has a mass and radius similar to Neptune. Since our inference is dominated by a single but highly precise Hubble epoch, we advocate for future monitoring of the system to check model predictions and confirm repetition of the moon-like signal.


PROVIDER: S-EPMC6170104 | BioStudies | 2018-01-01

REPOSITORIES: biostudies

Similar Datasets

2019-01-01 | S-EPMC6424524 | BioStudies
2015-01-01 | S-EPMC6662721 | BioStudies
2014-01-01 | S-EPMC4156715 | BioStudies
2015-01-01 | S-EPMC5548521 | BioStudies
2016-01-01 | S-EPMC5068330 | BioStudies
2017-01-01 | S-EPMC6398964 | BioStudies
2012-01-01 | S-EPMC3431220 | BioStudies
1000-01-01 | S-EPMC3845182 | BioStudies
2020-01-01 | S-EPMC7096516 | BioStudies
2018-01-01 | S-EPMC6136791 | BioStudies