Show simple item record

dc.contributor.authorBlunt, Sarah
dc.contributor.authorEndl, Michael
dc.contributor.authorWeiss, Lauren M.
dc.contributor.authorCochran, William D.
dc.contributor.authorHoward, Andrew W.
dc.contributor.authorMacQueen, Phillip J.
dc.contributor.authorFulton, Benjamin J.
dc.contributor.authorHenry, Gregory W.
dc.contributor.authorJohnson, Marshall C.
dc.contributor.authorKosiarek, Molly R.
dc.contributor.authorLawson, Kellen D.
dc.contributor.authorMacintosh, Bruce
dc.contributor.authorMills, Sean M.
dc.contributor.authorNielsen, Eric L.
dc.contributor.authorPetigura, Erik A.
dc.contributor.authorSchneider, Glenn
dc.contributor.authorVanderburg, Andrew
dc.contributor.authorWisniewski, John P.
dc.contributor.authorWittenmyer, Robert A.
dc.contributor.authorBrugamyer, Erik
dc.contributor.authorCaldwell, Caroline
dc.contributor.authorCochran, Anita L.
dc.contributor.authorHatzes, Artie P.
dc.contributor.authorHirsch, Lea A.
dc.contributor.authorIsaacson, Howard
dc.contributor.authorRobertson, Paul
dc.contributor.authorRoy, Arpita
dc.contributor.authorShen, Zili
dc.date.accessioned2020-01-29T17:16:54Z
dc.date.available2020-01-29T17:16:54Z
dc.date.issued2019-10-14
dc.identifier.citationSarah Blunt et al 2019 AJ 158 181en_US
dc.identifier.issn0004-6256
dc.identifier.doi10.3847/1538-3881/ab3e63
dc.identifier.urihttp://hdl.handle.net/10150/636759
dc.description.abstractBased on two decades of radial velocity (RV) observations using Keck/High Resolution Echelle Spectrometer (HIRES) and McDonald/Tull, and more recent observations using the Automated Planet Finder, we found that the nearby star HR 5183 (HD 120066) hosts a 3 ${M}_{{\rm{J}}}$ minimum mass planet with an orbital period of ${74}_{-22}^{+43}$ yr. The orbit is highly eccentric (e sime 0.84), shuttling the planet from within the orbit of Jupiter to beyond the orbit of Neptune. Our careful survey design enabled high cadence observations before, during, and after the planet's periastron passage, yielding precise orbital parameter constraints. We searched for stellar or planetary companions that could have excited the planet's eccentricity, but found no candidates, potentially implying that the perturber was ejected from the system. We did identify a bound stellar companion more than 15,000 au from the primary, but reasoned that it is currently too widely separated to have an appreciable effect on HR 5183 b. Because HR 5183 b's wide orbit takes it more than 30 au (1'') from its star, we also explored the potential of complimentary studies with direct imaging or stellar astrometry. We found that a Gaia detection is very likely, and that imaging at 10 μm is a promising avenue. This discovery highlights the value of long-baseline RV surveys for discovering and characterizing long-period, eccentric Jovian planets. This population may offer important insights into the dynamical evolution of planetary systems containing multiple massive planets.en_US
dc.description.sponsorshipNSFNational Science Foundation (NSF) [DGE 1745303, DGE 1339067, 1517655]; Beatrice Watson Parrent Fellowship; Trottier Family Foundation; NASA through the Sagan Fellowship Program; National Science FoundationNational Science Foundation (NSF) [AST-1313075]; NASANational Aeronautics & Space Administration (NASA) [NAS 5-26555]; NASA through grants from STScI; [12228]; [14714]; [15221]en_US
dc.language.isoenen_US
dc.publisherIOP PUBLISHING LTDen_US
dc.rightsCopyright © 2019. The American Astronomical Society. All rights reserved.en_US
dc.subjectplanets and satellites: detectionen_US
dc.subjectplanets and satellites: fundamental parametersen_US
dc.subjectstars: individual (HR 5183)en_US
dc.titleRadial Velocity Discovery of an Eccentric Jovian World Orbiting at 18 auen_US
dc.typeArticleen_US
dc.contributor.departmentUniv Arizona, Steward Observen_US
dc.identifier.journalASTRONOMICAL JOURNALen_US
dc.description.collectioninformationThis item from the UA Faculty Publications collection is made available by the University of Arizona with support from the University of Arizona Libraries. If you have questions, please contact us at repository@u.library.arizona.edu.en_US
dc.eprint.versionFinal published versionen_US
dc.source.volume158
dc.source.issue5
dc.source.beginpage181
refterms.dateFOA2020-01-29T17:16:54Z


Files in this item

Thumbnail
Name:
Blunt_2019_AJ_158_181.pdf
Size:
1.472Mb
Format:
PDF
Description:
Final Published Version

This item appears in the following Collection(s)

Show simple item record