HD 83443: a system with two Saturns

We report the discovery of an extrasolar planetary system with two Saturnian planets around the star HD 83443. The new planetary system is unusual by more than one aspect, as it contains two very low–mass gaseous giant planets, both on very tight orbits. Among the planets detected so far, the inner...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
Veröffentlicht in:Symposium - International Astronomical Union 2004, Vol.202, p.84-86
Hauptverfasser: Mayor, M., Naef, D., Pepe, F., Queloz, D., Santos, N. C., Udry, S., Burnet, M.
Format: Artikel
Sprache:eng
Online-Zugang:Volltext
Tags: Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
Beschreibung
Zusammenfassung:We report the discovery of an extrasolar planetary system with two Saturnian planets around the star HD 83443. The new planetary system is unusual by more than one aspect, as it contains two very low–mass gaseous giant planets, both on very tight orbits. Among the planets detected so far, the inner planet has the smallest semi–major axis (0.038 AU) and period (2.985 days) whereas the outer planet is the lightest one with m 2 sin i = 0.53 M Sat . A preliminary dynamical study confirms the stability of the system.
ISSN:0074-1809
DOI:10.1017/S0074180900217543