CONSTRAINTS on the ARCHITECTURE of the HD 95086 PLANETARY SYSTEM with the GEMINI PLANET IMAGER

Julien Rameau, Eric L. Nielsen, Robert J De Rosa, Sarah C. Blunt, Jennifer Patience, René Doyon, James R. Graham, David Lafrenière, Bruce Macintosh, Franck Marchis, Vanessa Bailey, Jeffrey K. Chilcote, Gaspard Duchene, Thomas M. Esposito, Li Wei Hung, Quinn M. Konopacky, Jérôme Maire, Christian Marois, Stanimir Metchev, Marshall D. Perrin & 14 others Laurent Pueyo, Abhijith Rajan, Dmitry Savransky, Jason J. Wang, Kimberly Ward-Duong, Schuyler G. Wolff, S. Mark Ammons, Pascale Hibon, Patrick Ingraham, Paul Kalas, Katie M. Morzinski, Rebecca Oppenheimer, Fredrik T. Rantakyearö, Sandrine Thomas

Research output: Contribution to journalArticle

23 Citations (Scopus)

Abstract

We present astrometric monitoring of the young exoplanet HD 95086 b obtained with the Gemini Planet Imager between 2013 and 2016. A small but significant position angle change is detected at constant separation; the orbital motion is confirmed with literature measurements. Efficient Monte Carlo techniques place preliminary constraints on the orbital parameters of HD 95086 b. With 68% confidence, a semimajor axis of 61.7+20.7 -8.4 20.7 au and an inclination of 153 .°0+9.7 -13.5 9.7 are favored, with eccentricity less than 0.21. Under the assumption of a coplanar planet-disk system, the periastron of HD 95086 b is beyond 51 au with 68% confidence. Therefore, HD 95086 b cannot carve the entire gap inferred from the measured infrared excess in the SED of HD 95086. We use our sensitivity to additional planets to discuss specific scenarios presented in the literature to explain the geometry of the debris belts. We suggest that either two planets on moderately eccentric orbits or three to four planets with inhomogeneous masses and orbital properties are possible. The sensitivity to additional planetary companions within the observations presented in this study can be used to help further constrain future dynamical simulations of the planet-disk system.

Original languageEnglish (US)
Article numberL29
JournalAstrophysical Journal Letters
Volume822
Issue number2
DOIs
StatePublished - May 10 2016

Fingerprint

planets
planet
confidence
orbitals
eccentric orbits
sensitivity
extrasolar planets
eccentricity
debris
inclination
orbits
geometry
monitoring
simulation

Keywords

  • astrometry
  • disk interactions
  • planet
  • planetary systems
  • stars: individual (HD 95086)

ASJC Scopus subject areas

  • Astronomy and Astrophysics
  • Space and Planetary Science

Cite this

CONSTRAINTS on the ARCHITECTURE of the HD 95086 PLANETARY SYSTEM with the GEMINI PLANET IMAGER. / Rameau, Julien; Nielsen, Eric L.; Rosa, Robert J De; Blunt, Sarah C.; Patience, Jennifer; Doyon, René; Graham, James R.; Lafrenière, David; Macintosh, Bruce; Marchis, Franck; Bailey, Vanessa; Chilcote, Jeffrey K.; Duchene, Gaspard; Esposito, Thomas M.; Hung, Li Wei; Konopacky, Quinn M.; Maire, Jérôme; Marois, Christian; Metchev, Stanimir; Perrin, Marshall D.; Pueyo, Laurent; Rajan, Abhijith; Savransky, Dmitry; Wang, Jason J.; Ward-Duong, Kimberly; Wolff, Schuyler G.; Ammons, S. Mark; Hibon, Pascale; Ingraham, Patrick; Kalas, Paul; Morzinski, Katie M.; Oppenheimer, Rebecca; Rantakyearö, Fredrik T.; Thomas, Sandrine.

In: Astrophysical Journal Letters, Vol. 822, No. 2, L29, 10.05.2016.

Research output: Contribution to journalArticle

Rameau, J, Nielsen, EL, Rosa, RJD, Blunt, SC, Patience, J, Doyon, R, Graham, JR, Lafrenière, D, Macintosh, B, Marchis, F, Bailey, V, Chilcote, JK, Duchene, G, Esposito, TM, Hung, LW, Konopacky, QM, Maire, J, Marois, C, Metchev, S, Perrin, MD, Pueyo, L, Rajan, A, Savransky, D, Wang, JJ, Ward-Duong, K, Wolff, SG, Ammons, SM, Hibon, P, Ingraham, P, Kalas, P, Morzinski, KM, Oppenheimer, R, Rantakyearö, FT & Thomas, S 2016, 'CONSTRAINTS on the ARCHITECTURE of the HD 95086 PLANETARY SYSTEM with the GEMINI PLANET IMAGER', Astrophysical Journal Letters, vol. 822, no. 2, L29. https://doi.org/10.3847/2041-8205/822/2/L29
Rameau, Julien ; Nielsen, Eric L. ; Rosa, Robert J De ; Blunt, Sarah C. ; Patience, Jennifer ; Doyon, René ; Graham, James R. ; Lafrenière, David ; Macintosh, Bruce ; Marchis, Franck ; Bailey, Vanessa ; Chilcote, Jeffrey K. ; Duchene, Gaspard ; Esposito, Thomas M. ; Hung, Li Wei ; Konopacky, Quinn M. ; Maire, Jérôme ; Marois, Christian ; Metchev, Stanimir ; Perrin, Marshall D. ; Pueyo, Laurent ; Rajan, Abhijith ; Savransky, Dmitry ; Wang, Jason J. ; Ward-Duong, Kimberly ; Wolff, Schuyler G. ; Ammons, S. Mark ; Hibon, Pascale ; Ingraham, Patrick ; Kalas, Paul ; Morzinski, Katie M. ; Oppenheimer, Rebecca ; Rantakyearö, Fredrik T. ; Thomas, Sandrine. / CONSTRAINTS on the ARCHITECTURE of the HD 95086 PLANETARY SYSTEM with the GEMINI PLANET IMAGER. In: Astrophysical Journal Letters. 2016 ; Vol. 822, No. 2.
@article{14dbfe2254a649a1ad6acb02d372822a,
title = "CONSTRAINTS on the ARCHITECTURE of the HD 95086 PLANETARY SYSTEM with the GEMINI PLANET IMAGER",
abstract = "We present astrometric monitoring of the young exoplanet HD 95086 b obtained with the Gemini Planet Imager between 2013 and 2016. A small but significant position angle change is detected at constant separation; the orbital motion is confirmed with literature measurements. Efficient Monte Carlo techniques place preliminary constraints on the orbital parameters of HD 95086 b. With 68{\%} confidence, a semimajor axis of 61.7+20.7 -8.4 20.7 au and an inclination of 153 .°0+9.7 -13.5 9.7 are favored, with eccentricity less than 0.21. Under the assumption of a coplanar planet-disk system, the periastron of HD 95086 b is beyond 51 au with 68{\%} confidence. Therefore, HD 95086 b cannot carve the entire gap inferred from the measured infrared excess in the SED of HD 95086. We use our sensitivity to additional planets to discuss specific scenarios presented in the literature to explain the geometry of the debris belts. We suggest that either two planets on moderately eccentric orbits or three to four planets with inhomogeneous masses and orbital properties are possible. The sensitivity to additional planetary companions within the observations presented in this study can be used to help further constrain future dynamical simulations of the planet-disk system.",
keywords = "astrometry, disk interactions, planet, planetary systems, stars: individual (HD 95086)",
author = "Julien Rameau and Nielsen, {Eric L.} and Rosa, {Robert J De} and Blunt, {Sarah C.} and Jennifer Patience and Ren{\'e} Doyon and Graham, {James R.} and David Lafreni{\`e}re and Bruce Macintosh and Franck Marchis and Vanessa Bailey and Chilcote, {Jeffrey K.} and Gaspard Duchene and Esposito, {Thomas M.} and Hung, {Li Wei} and Konopacky, {Quinn M.} and J{\'e}r{\^o}me Maire and Christian Marois and Stanimir Metchev and Perrin, {Marshall D.} and Laurent Pueyo and Abhijith Rajan and Dmitry Savransky and Wang, {Jason J.} and Kimberly Ward-Duong and Wolff, {Schuyler G.} and Ammons, {S. Mark} and Pascale Hibon and Patrick Ingraham and Paul Kalas and Morzinski, {Katie M.} and Rebecca Oppenheimer and Rantakyear{\"o}, {Fredrik T.} and Sandrine Thomas",
year = "2016",
month = "5",
day = "10",
doi = "10.3847/2041-8205/822/2/L29",
language = "English (US)",
volume = "822",
journal = "Astrophysical Journal Letters",
issn = "2041-8205",
publisher = "IOP Publishing Ltd.",
number = "2",

}

TY - JOUR

T1 - CONSTRAINTS on the ARCHITECTURE of the HD 95086 PLANETARY SYSTEM with the GEMINI PLANET IMAGER

AU - Rameau, Julien

AU - Nielsen, Eric L.

AU - Rosa, Robert J De

AU - Blunt, Sarah C.

AU - Patience, Jennifer

AU - Doyon, René

AU - Graham, James R.

AU - Lafrenière, David

AU - Macintosh, Bruce

AU - Marchis, Franck

AU - Bailey, Vanessa

AU - Chilcote, Jeffrey K.

AU - Duchene, Gaspard

AU - Esposito, Thomas M.

AU - Hung, Li Wei

AU - Konopacky, Quinn M.

AU - Maire, Jérôme

AU - Marois, Christian

AU - Metchev, Stanimir

AU - Perrin, Marshall D.

AU - Pueyo, Laurent

AU - Rajan, Abhijith

AU - Savransky, Dmitry

AU - Wang, Jason J.

AU - Ward-Duong, Kimberly

AU - Wolff, Schuyler G.

AU - Ammons, S. Mark

AU - Hibon, Pascale

AU - Ingraham, Patrick

AU - Kalas, Paul

AU - Morzinski, Katie M.

AU - Oppenheimer, Rebecca

AU - Rantakyearö, Fredrik T.

AU - Thomas, Sandrine

PY - 2016/5/10

Y1 - 2016/5/10

N2 - We present astrometric monitoring of the young exoplanet HD 95086 b obtained with the Gemini Planet Imager between 2013 and 2016. A small but significant position angle change is detected at constant separation; the orbital motion is confirmed with literature measurements. Efficient Monte Carlo techniques place preliminary constraints on the orbital parameters of HD 95086 b. With 68% confidence, a semimajor axis of 61.7+20.7 -8.4 20.7 au and an inclination of 153 .°0+9.7 -13.5 9.7 are favored, with eccentricity less than 0.21. Under the assumption of a coplanar planet-disk system, the periastron of HD 95086 b is beyond 51 au with 68% confidence. Therefore, HD 95086 b cannot carve the entire gap inferred from the measured infrared excess in the SED of HD 95086. We use our sensitivity to additional planets to discuss specific scenarios presented in the literature to explain the geometry of the debris belts. We suggest that either two planets on moderately eccentric orbits or three to four planets with inhomogeneous masses and orbital properties are possible. The sensitivity to additional planetary companions within the observations presented in this study can be used to help further constrain future dynamical simulations of the planet-disk system.

AB - We present astrometric monitoring of the young exoplanet HD 95086 b obtained with the Gemini Planet Imager between 2013 and 2016. A small but significant position angle change is detected at constant separation; the orbital motion is confirmed with literature measurements. Efficient Monte Carlo techniques place preliminary constraints on the orbital parameters of HD 95086 b. With 68% confidence, a semimajor axis of 61.7+20.7 -8.4 20.7 au and an inclination of 153 .°0+9.7 -13.5 9.7 are favored, with eccentricity less than 0.21. Under the assumption of a coplanar planet-disk system, the periastron of HD 95086 b is beyond 51 au with 68% confidence. Therefore, HD 95086 b cannot carve the entire gap inferred from the measured infrared excess in the SED of HD 95086. We use our sensitivity to additional planets to discuss specific scenarios presented in the literature to explain the geometry of the debris belts. We suggest that either two planets on moderately eccentric orbits or three to four planets with inhomogeneous masses and orbital properties are possible. The sensitivity to additional planetary companions within the observations presented in this study can be used to help further constrain future dynamical simulations of the planet-disk system.

KW - astrometry

KW - disk interactions

KW - planet

KW - planetary systems

KW - stars: individual (HD 95086)

UR - http://www.scopus.com/inward/record.url?scp=84968909080&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84968909080&partnerID=8YFLogxK

U2 - 10.3847/2041-8205/822/2/L29

DO - 10.3847/2041-8205/822/2/L29

M3 - Article

VL - 822

JO - Astrophysical Journal Letters

JF - Astrophysical Journal Letters

SN - 2041-8205

IS - 2

M1 - L29

ER -