DYNAMICAL MASS MEASUREMENT OF THE YOUNG SPECTROSCOPIC BINARY V343 NORMAE AaAb RESOLVED WITH THE GEMINI PLANET IMAGER
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Author
Nielsen, Eric L.Rosa, Robert J. De
Wang, Jason
Rameau, Julien
Song, Inseok
Graham, James R.
Macintosh, Bruce
Ammons, Mark
Bailey, Vanessa P.
Barman, Travis S.
Bulger, Joanna
Chilcote, Jeffrey K.
Cotten, Tara
Doyon, Rene
Duchêne, Gaspard
Fitzgerald, Michael P.
Follette, Katherine B.
Greenbaum, Alexandra Z.
Hibon, Pascale
Hung, Li-Wei
Ingraham, Patrick
Kalas, Paul
Konopacky, Quinn
Larkin, James E.
Maire, Jérôme
Marchis, Franck
Marley, Mark S.
Marois, Christian
Metchev, Stanimir A.
Millar-Blanchaer, Maxwell A.
Oppenheimer, Rebecca
Palmer, David W.
Patience, Jenny
Perrin, Marshall
Poyneer, Lisa A.
Pueyo, Laurent
Rajan, Abhijith
Rantakyrö, Fredrik T.
Savransky, Dmitry
Schneider, Adam C.
Sivaramakrishnan, Anand
Soummer, Remi
Thomas, Sandrine
Wallace, J. Kent
Ward-Duong, Kimberly
Wiktorowicz, Sloane
Wolff, Schuyler
Affiliation
Univ Arizona, Lunar & Planetary LabIssue Date
2016-11-22
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DYNAMICAL MASS MEASUREMENT OF THE YOUNG SPECTROSCOPIC BINARY V343 NORMAE AaAb RESOLVED WITH THE GEMINI PLANET IMAGER 2016, 152 (6):175 The Astronomical JournalJournal
The Astronomical JournalRights
© 2016. The American Astronomical Society. All rights reserved.Collection Information
This 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.Abstract
We present new spatially resolved astrometry and photometry from the Gemini Planet Imager of the inner binary of the young multiple star system V343 Normae, which is a member of the beta Pictoris (beta Pic) moving group. V343 Normae comprises a K0 and mid-M star in a similar to 4.5 year orbit (AaAb) and a wide 10 '' M5 companion (B). By combining these data with archival astrometry and radial velocities we fit the orbit and measure individual masses for both components of M-Aa = 1.10 +/- 0.10M(circle dot) and M-Ab= 0.290 +/- 0.018 M-circle dot. Comparing to theoretical isochrones, we find good agreement for the measured masses and JHK band magnitudes of the two components consistent with the age of the beta Pic moving group. We derive a model-dependent age for the beta Pic moving group of 26 +/- 3 Myr by combining our results for V343 Normae with literature measurements for GJ. 3305, which is another group member with resolved binary components and dynamical masses.ISSN
1538-3881Version
Final published versionSponsors
NSF [AST-0909188, AST-1313718, AST-1411868, AST-141378, NNX11AF74G, DGE-1232825]; NASA [NNX15AD95G/NEXSS, NNX11AD21G, NNX14AJ80G]; Fonds de Recherche du Quebec; U.S. Department of Energy by Lawrence Livermore National Laboratory [DE-AC52-07NA27344]; National Sciences and Engineering Research Council of Canada; JPL Research and Technology GrantAdditional Links
http://stacks.iop.org/1538-3881/152/i=6/a=175?key=crossref.07f0f615885a08f3f8c0e6ea1b8f81f1ae974a485f413a2113503eed53cd6c53
10.3847/0004-6256/152/6/175