Follow Slashdot stories on Twitter


Forgot your password?
Check out the new SourceForge HTML5 internet speed test! No Flash necessary and runs on all devices. Also, Slashdot's Facebook page has a chat bot now. Message it for stories and more. ×

Submission + - Many exoplanets may be two in disguise

Kligat writes: A new study published this month in Astrophysics finds that some exoplanets discovered using the Doppler effect to find variances in the radial motion of a star may actually be two smaller bodies instead of one. Instead of two exoplanets where one makes two orbits for every orbit the other makes, with both being nearly circular, what is misinterpreted is a single exoplanet in an eccentric orbit.

The study concludes that half of known exoplanets may fall under this category, and "hot Neptune" exoplanets may be the most probable for yielding bodies only several times the size of Earth. Coincidentally, another study published this month in Astrophysics finds two exoplanets with eccentric orbits of 0.61 and 0.27. The Exoplanet Encyclopedia manages to keep an up-to-date count and catalog (we're at 309 now).
This discussion was created for logged-in users only, but now has been archived. No new comments can be posted.

Many exoplanets may be two in disguise

Comments Filter:

"Text processing has made it possible to right-justify any idea, even one which cannot be justified on any other grounds." -- J. Finnegan, USC.