Home News About Us Contact Contributors Disclaimer Privacy Policy Help FAQ

Home
Search
Quick Search
Advanced
Fulltext
Browse
Collections
Persons
My eDoc
Session History
Login
Name:
Password:
Documentation
Help
Support Wiki
Direct access to
document ID:


          Institute: MPI für Astronomie     Collection: Publikationen_mpia     Display Documents



ID: 607501.0, MPI für Astronomie / Publikationen_mpia
The HARPS search for southern extra-solar planets. XXX. Planetary systems around stars with solar-like magnetic cycles and short-term activity variation
Authors:Dumusque, X.; Lovis, C.; Ségransan, D.; Mayor, M.; Udry, S.; Benz, W.; Bouchy, F.; Lo Curto, G.; Mordasini, C.; Pepe, F.; Queloz, D.; Santos, N. C.; Naef, D.
Date of Publication (YYYY-MM-DD):2011
Journal Abbrev.:Astronomy and Astrophysics
Volume:535
Audience:Not Specified
Abstract / Description:We present the discovery of four new long-period planets within the HARPS high-precision sample: <ASTROBJ>HD 137388</ASTROBJ>b (Msini = 0.22 MJ), <ASTROBJ>HD 204941</ASTROBJ>b (Msini = 0.27 MJ), <ASTROBJ>HD 7199</ASTROBJ>b (Msini = 0.29 MJ), <ASTROBJ>HD 7449</ASTROBJ>b (Msini = 1.04 MJ). A long-period companion, probably a second planet, is also found orbiting HD 7449. Planets around HD 137388, HD 204941, and HD 7199 have rather low eccentricities (less than 0.4) relative to the 0.82 eccentricity of HD 7449b. All these planets were discovered even though their hosting stars have clear signs of activity. Solar-like magnetic cycles, characterized by long-term activity variations, can be seen for
Free Keywords:planetary systems; techniques: radial velocities; stars: individual: HD 7199; stars: individual: HD 7449; stars: individual: HD 137388; stars: individual: HD 204941
External Publication Status:published
Document Type:Article
Communicated by:N. N.
Affiliations:MPI für Astronomie
Identifiers:URL:http://cdsads.u-strasbg.fr/abs/2011A%26A...535A..5...
The scope and number of records on eDoc is subject to the collection policies defined by each institute - see "info" button in the collection browse view.