The California Planet Survey. I. Four New Giant Exoplanets

Simple item page
dc.contributor.utaustinauthorEndl, Michaelen_US
dc.contributor.utaustinauthorCochran, William D.en_US
dc.creatorHoward, Andrew W.en_US
dc.creatorJohnson, John A.en_US
dc.creatorMarcy, Geoffrey W.en_US
dc.creatorFischer, Debra A.en_US
dc.creatorWright, Jason T.en_US
dc.creatorBernat, Daviden_US
dc.creatorHenry, Gregory W.en_US
dc.creatorPeek, Kathryn M. G.en_US
dc.creatorIsaacson, Howarden_US
dc.creatorApps, Kevinen_US
dc.creatorEndl, Michaelen_US
dc.creatorCochran, William D.en_US
dc.creatorValenti, Jeff A.en_US
dc.creatorAnderson, Jayen_US
dc.creatorPiskunov, Nikolai E.en_US
dc.date.accessioned2016-04-28T19:43:02Z
dc.date.available2016-04-28T19:43:02Z
dc.date.issued2010-10en
dc.description.abstractWe present precise Doppler measurements of four stars obtained during the past decade at Keck Observatory by the California Planet Survey (CPS). These stars, namely, HD 34445, HD 126614, HD 13931, and Gl 179, all show evidence for a single planet in Keplerian motion. We also present Doppler measurements from the Hobby-Eberly Telescope (HET) for two of the stars, HD 34445 and Gl 179, that confirm the Keck detections and significantly refine the orbital parameters. These planets add to the statistical properties of giant planets orbiting near or beyond the ice line, and merit follow-up by astrometry, imaging, and space-borne spectroscopy. Their orbital parameters span wide ranges of planetary minimum mass (M sin i = 0.38-1.9 M(Jup)), orbital period (P = 2.87-11.5 yr), semimajor axis (a = 2.1-5.2 AU), and eccentricity (e = 0.02-0.41). HD 34445 b (P = 2.87 yr, M sin i = 0.79 MJup, e = 0.27) is a massive planet orbiting an old, G-type star. We announce a planet, HD 126614 Ab, and an M dwarf, HD 126614 B, orbiting the metal-rich star HD 126614 (which we now refer to as HD 126614 A). The planet, HD 126614 Ab, has minimum mass M sin i = 0.38 MJup and orbits the stellar primary with period P = 3.41 yr and orbital separation a = 2.3 AU. The faint M dwarf companion, HD 126614 B, is separated from the stellar primary by 489 mas (33 AU) and was discovered with direct observations using adaptive optics and the PHARO camera at Palomar Observatory. The stellar primary in this new system, HD 126614 A, has the highest measured metallicity ([ Fe/ H] = + 0.56) of any known planet-bearing star. HD 13931 b (P = 11.5 yr, M sin i = 1.88 MJup, e = 0.02) is a Jupiter analog orbiting a near solar twin. Gl 179 b (P = 6.3 yr, M sin i = 0.82 M(Jup), e = 0.21) is a massive planet orbiting a faint M dwarf. The high metallicity of Gl 179 is consistent with the planet-metallicity correlation among M dwarfs, as documented recently by Johnson & Apps.en_US
dc.description.departmentMcDonald Observatoryen_US
dc.description.sponsorshipNSF AST-0702821en_US
dc.description.sponsorshipNASA NNX06AH52Gen_US
dc.identifierdoi:10.15781/T2D25C
dc.identifier.Filename2010_10_planetsurvey.pdfen_US
dc.identifier.citationHoward, Andrew W., John Asher Johnson, Geoffrey W. Marcy, Debra A. Fischer, Jason T. Wright, David Bernat, Gregory W. Henry et al. "The California planet survey. I. Four new giant exoplanets." The Astrophysical Journal, Vol. 721, No. 2 (Oct., 2010): 1467.en_US
dc.identifier.doi10.1088/0004-637x/721/2/1467en_US
dc.identifier.issn0004-637Xen_US
dc.identifier.urihttp://hdl.handle.net/2152/35164
dc.language.isoEnglishen_US
dc.relation.ispartofen_US
dc.relation.ispartofserialAstrophysical Journalen_US
dc.rightsAdministrative deposit of works to Texas ScholarWorks: This works author(s) is or was a University faculty member, student or staff member; this article is already available through open access or the publisher allows a PDF version of the article to be freely posted online. The library makes the deposit as a matter of fair use (for scholarly, educational, and research purposes), and to preserve the work and further secure public access to the works of the University.en_US
dc.rights.restrictionOpenen_US
dc.subjectbinaries: visualen_US
dc.subjectplanetary systemsen_US
dc.subjectstars: individual (hd 34445, hden_US
dc.subject126614, hd 24496, hd 13931, g1 179)en_US
dc.subjecttechniques: high angularen_US
dc.subjectresolutionen_US
dc.subjecttechniques: photometricen_US
dc.subjecttechniques: radial velocitiesen_US
dc.subjecthobby-eberly telescopeen_US
dc.subjectradial-velocityen_US
dc.subjectextrasolar planetsen_US
dc.subjectcool starsen_US
dc.subjectechelle spectrometeren_US
dc.subjectorbital migrationen_US
dc.subjectmagnetic activityen_US
dc.subjectmass starsen_US
dc.subjectm-dwarfen_US
dc.subjectsearchen_US
dc.subjectastronomy & astrophysicsen_US
dc.titleThe California Planet Survey. I. Four New Giant Exoplanetsen_US
dc.typeArticleen_US

Access full-text files

Original bundle

Now showing 1 - 1 of 1
Thumbnail Image
Name:
2010_10_planetsurvey.pdf
Size:
719.13 KB
Format:
Adobe Portable Document Format
Download

License bundle

Now showing 1 - 1 of 1
No Thumbnail Available
Name:
license.txt
Size:
1.65 KB
Format:
Plain Text
Description:
Download

Collections

UT Faculty/Researcher Works