Catch up on stories from the past week (and beyond) at the Slashdot story archive


Forgot your password?

Slashdot videos: Now with more Slashdot!

  • View

  • Discuss

  • Share

We've improved Slashdot's video section; now you can view our video interviews, product close-ups and site visits with all the usual Slashdot options to comment, share, etc. No more walled garden! It's a work in progress -- we hope you'll check it out (Learn more about the recent updates).


+ - Many exoplanets may be two in disguise

Submitted by Kligat
Kligat (1244968) 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This discussion was created for logged-in users only, but now has been archived.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:

It is the quality rather than the quantity that matters. - Lucius Annaeus Seneca (4 B.C. - A.D. 65)