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The Anglo-Australian Planet Search. XXII. Two new multi-planet systems
| Indexado |
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| DOI | 10.1088/0004-637X/753/2/169 | ||||
| Año | 2012 | ||||
| Tipo | artículo de investigación |
Citas Totales
Autores Afiliación Chile
Instituciones Chile
% Participación
Internacional
Autores
Afiliación Extranjera
Instituciones
Extranjeras
Abstract
We report the detection of two new planets from the Anglo-Australian Planet Search. These planets orbit two stars each previously known to host one planet. The new planet orbiting HD 142 has a period of 6005 +/- 427 days, and a minimum mass of 5.3 M-Jup. HD 142c is thus a new Jupiter analog: a gas-giant planet with a long period and low eccentricity (e = 0.21 +/- 0.07). The second planet in the HD 159868 system has a period of 352.3 +/- 1.3 days and m sin i = 0.73 +/- 0.05 M-Jup. In both of these systems, including the additional planets in the fitting process significantly reduced the eccentricity of the original planet. These systems are thus examples of how multiple-planet systems can masquerade as moderately eccentric single-planet systems.
| Ord. | Autor | Género | Institución - País |
|---|---|---|---|
| 1 | Wittenmyer, Rob | Hombre |
Univ New S Wales - Australia
University of New South Wales (UNSW) Australia - Australia UNSW Sydney - Australia |
| 2 | Horner, Jonathan | Hombre |
Univ New S Wales - Australia
University of New South Wales (UNSW) Australia - Australia UNSW Sydney - Australia |
| 3 | Tuomi, Mikko | Hombre |
Univ Hertfordshire - Reino Unido
Univ Turku - Finlandia University of Hertfordshire - Reino Unido Tuorla Observatory - Finlandia Tuorlan observatorio - Finlandia |
| 4 | Salter, Graeme | Hombre |
Univ New S Wales - Australia
University of New South Wales (UNSW) Australia - Australia UNSW Sydney - Australia |
| 5 | Tinney, C. G. | Hombre |
Univ New S Wales - Australia
University of New South Wales (UNSW) Australia - Australia UNSW Sydney - Australia |
| 6 | Asquier, J. | Hombre |
Carnegie Inst Sci - Estados Unidos
Carnegie Institution of Washington - Estados Unidos |
| 7 | Jones, Hugh R. A. | Hombre |
University of Hertfordshire - Reino Unido
|
| 8 | O'Toole, S. J. | Hombre |
Australian Astron Observ - Australia
Australian Astronomical Observatory - Australia |
| 9 | Bailey, Jeremy | Hombre |
Univ New S Wales - Australia
University of New South Wales (UNSW) Australia - Australia UNSW Sydney - Australia |
| 10 | Carter, B. | Hombre |
Univ So Queensland - Australia
University of Southern Queensland - Australia |
| 11 | JENKINS, JAMES STEWART | Hombre |
Universidad de Chile - Chile
Centro de Excelencia en Astrofísica y Tecnologías Afines - Chile |
| 12 | Zhang, Z. | - |
Univ Hertfordshire - Reino Unido
|
| 13 | Vogt, Steven S. | Hombre |
Univ Calif Santa Cruz - Estados Unidos
University of California, Santa Cruz - Estados Unidos Lick Observatory - Estados Unidos |
| 14 | Rivera, Eugenio | Hombre |
Univ Calif Santa Cruz - Estados Unidos
University of California, Santa Cruz - Estados Unidos Lick Observatory - Estados Unidos |
| Fuente |
|---|
| FONDECYT |
| European Commission |
| Science and Technology Facilities Council |
| Australian Astronomical Observatory |
| Australian Government |
| Carnegie Institution of Washington |
| UK government |
| UNSW Vice-Chancellor's Fellowship |
| Australian government through ARC |
| Marie Curie Initial Training Networks |
| RoPACS (Rocky Planets Around Cool Stars) |
| Agradecimiento |
|---|
| J.H. and C.G.T. gratefully acknowledge the financial support of the Australian government through ARC Grant DP0774000. R.W. is supported by a UNSW Vice-Chancellor's Fellowship. M.T. is supported by the RoPACS (Rocky Planets Around Cool Stars), a Marie Curie Initial Training Networks funded by the European Commission's Seventh Framework Programme. J.S.J. acknowledges support through Fondecyt Grant 3110004. We gratefully acknowledge the UK and Australian government support of the Anglo-Australian Telescope through their PPARC, STFC, and DIISR funding, and travel support from the Australian Astronomical Observatory and the Carnegie Institution of Washington. |
