Towards the characterization of the hot Neptune/super-Earth population around nearby bright stars

Details Towards the characterization of the hot Neptune/super-Earth population around nearby bright stars Towards the characterization of the hot Neptune/super-Earth population around nearby bright stars

Feb 2009

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009iaus..253..502l&link_type=abstract

Transiting Planets, Proceedings of the International Astronomical Union, IAU Symposium, Volume 253, p. 502-505

Astronomy and Astrophysics

Astronomy

22

Scientific paper

The HARPS search for low-mass extrasolar planets has been ongoing for more than 4 years, targeting originally about 400 bright FGK dwarfs in the solar neighbourhood. The published low-mass planetary systems coming from this survey are fully confirmed by subsequent observations, which demonstrate the sub-m/s long-term stability reached by HARPS. The complex RV curves of these systems have led us to focus on a smaller sample of stars, accumulating more data points per star. We perform a global search in our data to assess the existence of the large population of ice giants and super-Earths predicted by numerical simulations of planet formation. We indeed detect about 45 candidates having minimum masses below 30 M⊕ and orbital periods below 50 days. These numbers are preliminary since the existence of these objects has to be confirmed by subsequent observations. However, they indicate that about 30% of solar-type stars may have such close-in, low-mass planets. Some emerging properties of this low-mass population are presented. We finally discuss the prospects for finding transiting objects among these candidates, which may possibly yield the first nearby, transiting super-Earth.

Affiliated with

Also associated with

No associations

Rating

Towards the characterization of the hot Neptune/super-Earth population around nearby bright stars does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Towards the characterization of the hot Neptune/super-Earth population around nearby bright stars, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Towards the characterization of the hot Neptune/super-Earth population around nearby bright stars will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-918370