Jun 16

Unexpected Excess of Giant Planets in Star Cluster

Source: Science Release eso1621

eso1621aArtist’s impression of a hot Jupiter exoplanet in the star cluster Messier 67 .
Image credits: ESO/L. Calçada.

An international team of astronomers have found that there are far more planets of the hot Jupiter type than expected in a cluster of stars called Messier 67. This surprising result was obtained using a number of telescopes and instruments, among them the HARPS spectrograph at ESO’s La Silla Observatory in Chile. The denser environment in a cluster will cause more frequent interactions between planets and nearby stars, which may explain the excess of hot Jupiters. (learn more)

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