Zobrazeno 1 - 10
of 14
pro vyhledávání: '"Genya Takeda"'
Publikováno v:
Astrobiology. 10:733-741
The long-term habitability of Earth-like planets requires low orbital eccentricities. A secular perturbation from a distant stellar companion is a very important mechanism in exciting planetary eccentricities, as many of the extrasolar planetary syst
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::35b289a4124c9e343a20a319615cf10f
https://doi.org/10.1089/ast.2009.0459
https://doi.org/10.1089/ast.2009.0459
Publikováno v:
The Astrophysical Journal. 686:L29-L32
Strong tidal interaction with the central star can circularize the orbits of close-in planets. With the standard tidal quality factor Q of our solar system, estimated circularization times for close-in extrasolar planets are typically shorter than th
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0987e705831662df6498d2a01de9c1e8
https://doi.org/10.1086/592818
https://doi.org/10.1086/592818
Autor:
R. Paul Butler, Genya Takeda, Peter Driscoll, John Asher Johnson, Masashi Omiya, Eri Toyota, Geoffrey W. Marcy, Jason T. Wright, Gregory Laughlin, Sarah E. Robinson, Debra A. Fischer, Bun'ei Sato, Steven S. Vogt, Gregory W. Henry, Shigeru Ida
Publikováno v:
The Astrophysical Journal. 669:1336-1344
We report the detection of five Jovian mass planets orbiting high metallicity stars. Four of these stars were first observed as part of the N2K program and exhibited low RMS velocity scatter after three consecutive observations. However, follow-up ob
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0cc2ac78fc92655a7e3d5aa508a59789
https://doi.org/10.1086/521869
https://doi.org/10.1086/521869
Autor:
Genya Takeda, Frederic A. Rasio
Publikováno v:
Astrophysics and Space Science. 304:239-242
The most puzzling property of the extrasolar planets discovered by recent radial velocity surveys is their high orbital eccentricities, which are very difficult to explain within our current theoretical paradigm for planet formation. Current data rev
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7b4bf032e2878b24e6979eef4b22d3dc
https://doi.org/10.1007/s10509-006-9120-1
https://doi.org/10.1007/s10509-006-9120-1
Many recent observational studies have concluded that planetary systems commonly exist in multiple-star systems. At least ~20%, and presumably a larger fraction of the known extrasolar planetary systems are associated with one or more stellar compani
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::17b9abdca6f4f6b4c9e0204c7a1a11ac
http://arxiv.org/abs/0807.1105
http://arxiv.org/abs/0807.1105
Autor:
Fred C. Adams, Debra A. Fischer, Dante Minniti, Stephen A. Shectman, Mercedes Lopez-Morales, R. Paul Butler, Genya Takeda, Pamela Arriagada, Jason T. Wright
Publikováno v:
Astronomical Journal
Artículos CONICYT
CONICYT Chile
instacron:CONICYT
Artículos CONICYT
CONICYT Chile
instacron:CONICYT
We report the detection of the first two planets from the N2K Doppler planet search program at the Magellan telescopes. The first planet has a mass of M sin i = 4.96 M_Jup and is orbiting the G3 IV star HD154672 with an orbital period of 163.9 days.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::77958f8d61b4fb595c558d6136a4046b
Many recent observational studies have concluded that planetary systems commonly exist in multiple-star systems. At least ~20% of the known extrasolar planetary systems are associated with one or more stellar companions. The orbits of stellar binarie
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ae5cdc5e9cdb2f18e7b56bccda6ef621
Autor:
Sarah E. Robinson, Debra A. Fischer, Peter Driscoll, Genya Takeda, Steven S. Vogt, John Asher Johnson, R. Paul Butler, Gregory Laughlin, Gregory W. Henry, Geoffrey W. Marcy
We report the discovery of two new planets: a 1.94 M_Jup planet in a 1.8-year orbit of HD 5319, and a 2.51 M_Jup planet in a 1.1-year orbit of HD 75898. The measured eccentricities are 0.12 for HD 5319 b and 0.10 for HD 75898 b, and Markov Chain Mont
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::cb03331f3fbc1be75ab89bca89a1993a
Autor:
Alison Sills, Frederic A. Rasio, Jeff A. Valenti, Genya Takeda, Eric B. Ford, Debra A. Fischer
We derive detailed theoretical models for 1074 nearby stars from the SPOCS (Spectroscopic Properties of Cool Stars) Catalog. The California and Carnegie Planet Search has obtained high-quality echelle spectra of over 1000 nearby stars taken with the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6e2e6b85f84eeca4f9beb52f7541c80f
http://arxiv.org/abs/astro-ph/0607235
http://arxiv.org/abs/astro-ph/0607235