activity
20032026
most citedImages of a fourth planet orbiting HR 8799

964 citations · 8k across the 136 of their papers we have counts for

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Showing 2018Show all

8 papers · 1 filter

astro-ph.SR2018★ 37 cited

Stellar Proper Motions in the Orion Nebula Cluster

Dongwon Kim, Jessica R. Lu, Quinn Konopacky +5

The Orion Nebula Cluster (ONC) is the nearest site of ongoing massive star formation, which allows us to study the kinematics and dynamics of the region in detail and constrain sta…

astro-ph.EP2018★ 141 cited

Dynamical Constraints on the HR 8799 Planets with GPI

Jason J. Wang, James R. Graham, Rebekah Dawson +52

The HR 8799 system uniquely harbors four young super-Jupiters whose orbits can provide insights into the system's dynamical history and constrain the masses of the planets themselv…

astro-ph.EP2018★ 36 cited

Improving Orbit Estimates for Incomplete Orbits with a New Approach to Priors -- with Applications from Black Holes to Planets

K. Kosmo O'Neil, G. D. Martinez, A. Hees +9

We propose a new approach to Bayesian prior probability distributions (priors) that can improve orbital solutions for low-phase-coverage orbits, where data cover less than approxim…

astro-ph.IM2018★ 2 cited

Direct Imaging in Reflected Light: Characterization of Older, Temperate Exoplanets With 30-m Telescopes

Etienne Artigau, Rebecca A. Bernstein, Timothy Brandt +22

Direct detection, also known as direct imaging, is a method for discovering and characterizing the atmospheres of planets at intermediate and wide separations. It is the only means…

astro-ph.EP2018★ 36 cited

Direct Imaging of the HD 35841 Debris Disk: A Polarized Dust Ring from Gemini Planet Imager and an Outer Halo from HST/STIS

Thomas M. Esposito, Gaspard Duchêne, Paul Kalas +55

We present new high resolution imaging of a light-scattering dust ring and halo around the young star HD 35841. Using spectroscopic and polarimetric data from the Gemini Planet Ima…

astro-ph.EP2018★ 66 cited

GPI spectra of HR 8799 c, d, and e from 1.5 to 2.4m with KLIP Forward Modeling

Alexandra Z. Greenbaum, Laurent Pueyo, Jean-Baptiste Ruffio +51

We explore KLIP forward modeling spectral extraction on Gemini Planet Imager coronagraphic data of HR 8799, using PyKLIP and show algorithm stability with varying KLIP parameters.…