Three’s Company: An Additional Non-transiting Super-Earth in the Bright HD 3167 System, and Masses for All Three Planets
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Christiansen, Jessie L.
Vanderburg, Andrew

Burt, Jennifer

Fulton, B. J.

Batygin, Konstantin
Benneke, Björn
Brewer, John M.

Charbonneau, David

Ciardi, David R.
Cameron, Andrew Collier
Coughlin, Jeffrey L.

Crossfield, Ian J. M.
Dressing, Courtney

Greene, Thomas P.

Howard, Andrew W.

Latham, David W.

Molinari, Emilio

Mortier, Annelies

Mullally, Fergal
Pepe, Francesco
Rice, Ken
Sinukoff, Evan

Sozzetti, Alessandro

Thompson, Susan E.

Udry, Stéphane
Vogt, Steven S.

Barman, Travis S.

Batalha, Natasha E.

Bouchy, François
Buchhave, Lars A.

Butler, R. Paul

Cosentino, Rosario
Dupuy, Trent J.

Ehrenreich, David

Fiorenzano, Aldo
Hansen, Brad M. S.
Henning, Thomas
Hirsch, Lea

Holden, Bradford

Isaacson, Howard T.

Johnson, John A.

Knutson, Heather A.
Kosiarek, Molly

López-Morales, Mercedes
Lovis, Christophe
Malavolta, Luca

Mayor, Michel
Micela, Giuseppina
Motalebi, Fatemeh
Petigura, Erik

Phillips, David F.
Piotto, Giampaolo

Rogers, Leslie A.

Sasselov, Dimitar

Schlieder, Joshua E.

Ségransan, Damien
Watson, Christopher A.
Weiss, Lauren M.

Affiliation
Univ Arizona, Lunar & Planetary LabIssue Date
2017-08-31
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IOP PUBLISHING LTDCitation
Three’s Company: An Additional Non-transiting Super-Earth in the Bright HD 3167 System, and Masses for All Three Planets 2017, 154 (3):122 The Astronomical JournalJournal
The Astronomical JournalRights
© 2017. 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
HD 3167 is a bright (V = 8.9), nearby KO star observed by the NASA K2 mission (EPIC 220383386), hosting two small, short-period transiting planets. Here we present the results of a multi-site, multi-instrument radial-velocity campaign to characterize the HD 3167 system. The masses of the transiting planets are 5.02 +/- 0.38 M-circle plus for HD 3167 b, a hot super-Earth with a likely rocky composition (rho(b) = 5.6(-1.43)(+2.15) g cm(-3)), and 9.80(-1.24)(+1.30) M-circle plus for HD 3167 c, a warm sub-Neptune with a likely substantial volatile complement (rho(c) = 1.97(-0.59)(+0.94) g cm(-3)). We explore the possibility of atmospheric composition analysis and determine that planet c is amenable to transmission spectroscopy measurements, and planet b is a potential thermal emission target. We detect a third, non-transiting planet, HD 3167 d, with a period of 8.509 +/- 0.045 d (between planets b and c) and a minimum mass of 6.90 +/- 0.71 M-circle plus. We are able to constrain the mutual inclination of planet d with planets b and c: we rule out mutual inclinations below 1.degrees 3 because we do not observe transits of planet d. From 1.degrees 3 to 40 degrees, there are viewing geometries invoking special nodal configurations, which result in planet d not transiting some fraction of the time.ISSN
1538-3881Version
Final published versionSponsors
NASA Astrophysics Data Analysis Program grant; K2 Guest Observer Program; National Science Foundation [2014184874]; European Union Seventh Framework Program (FP7) [313014]; John Templeton Foundation; NASA [NNX15AC90G, NNX17AB59G, NAS5-26555]; NASA Office of Space Science [NNX09AF08G]; U.S. Government [NAG W-2166]Additional Links
http://stacks.iop.org/1538-3881/154/i=3/a=122?key=crossref.a44cb9651fab6166901dba2882729784ae974a485f413a2113503eed53cd6c53
10.3847/1538-3881/aa832d
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