Astronomers Unveil Technique For Finding Exoplanets And Any Signs Of Life On Them

Exoplanets around white dwarf stars are particularly hard to find. But a new method involving the James Webb Space Telescope could soon reveal them

The Physics arXiv Blog iconThe Physics arXiv Blog
By The Physics arXiv Blog
Sep 30, 2022 3:40 PMSep 30, 2022 3:39 PM
Exoplanet
(Credit:Nostalgia for Infinity/Shutterstock)

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The Solar System is surrounded by a colorful array of stellar neighbors. Within about 30 light years of here, there are 74 main sequence stars, 284 red dwarf stars and 21 white dwarfs.

These stars are attractive targets for exoplanet hunters because, being so close, they are relatively easy to study. Indeed, astronomers have found planetary systems around 60 of them.

However, most of these are around main sequence stars and red dwarfs. By contrast, only a handful of exoplanets have ever been found around white dwarfs. That’s because the main planet finding techniques do not work well for these stars.

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