The Gemini Planet Imager Exoplanet Survey: giant planet and brown dwarf demographics from 10 to 100 au

EL Nielsen, RJ De Rosa, B Macintosh… - The Astronomical …, 2019 - iopscience.iop.org
We present a statistical analysis of the first 300 stars observed by the Gemini Planet Imager
Exoplanet Survey. This subsample includes six detected planets and three brown dwarfs; …

Discovery and spectroscopy of the young jovian planet 51 Eri b with the Gemini Planet Imager

B Macintosh, JR Graham, T Barman, RJ De Rosa… - Science, 2015 - science.org
Directly detecting thermal emission from young extrasolar planets allows measurement of
their atmospheric compositions and luminosities, which are influenced by their formation …

Rest-frame near-infrared sizes of galaxies at cosmic noon: objects in JWST's mirror are smaller than they appeared

KA Suess, R Bezanson, EJ Nelson… - The Astrophysical …, 2022 - iopscience.iop.org
Galaxy sizes and their evolution over cosmic time have been studied for decades and serve
as key tests of galaxy formation models. However, at z≳ 1 these studies have been limited …

Performance of the Gemini Planet Imager's adaptive optics system

LA Poyneer, DW Palmer, B Macintosh, D Savransky… - Applied Optics, 2016 - opg.optica.org
The Gemini Planet Imager's adaptive optics (AO) subsystem was designed specifically to
facilitate high-contrast imaging. A definitive description of the system's algorithms and …

Dynamical constraints on the HR 8799 planets with GPI

JJ Wang, JR Graham, R Dawson… - The Astronomical …, 2018 - iopscience.iop.org
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 …

Debris disk results from the Gemini Planet Imager Exoplanet Survey's polarimetric imaging campaign

TM Esposito, P Kalas, MP Fitzgerald… - The Astronomical …, 2020 - iopscience.iop.org
We report the results of a∼ 4 yr direct imaging survey of 104 stars to resolve and
characterize circumstellar debris disks in scattered light as part of the Gemini Planet Imager …

Resolving the HD 100546 protoplanetary system with the Gemini Planet Imager: evidence for multiple forming, accreting planets

T Currie, R Cloutier, S Brittain, C Grady… - The Astrophysical …, 2015 - iopscience.iop.org
ABSTRACT We report Gemini Planet Imager H-band high-contrast imaging/integral field
spectroscopy and polarimetry of the HD 100546, a 10 Myr old early-type star recently …

Minor Merger Growth in Action: JWST Detects Faint Blue Companions around Massive Quiescent Galaxies at 0.5≤ z≤ 3.0

KA Suess, CC Williams, B Robertson, Z Ji… - The Astrophysical …, 2023 - iopscience.iop.org
Minor mergers are thought to drive the structural evolution of massive quiescent galaxies;
however, existing Hubble Space Telescope (HST) imaging is primarily sensitive to stellar …

Polarimetry with the Gemini planet imager: methods, performance at first light, and the circumstellar ring around HR 4796A

MD Perrin, G Duchene, M Millar-Blanchaer… - The Astrophysical …, 2015 - iopscience.iop.org
We present the first results from the polarimetry mode of the Gemini Planet Imager (GPI),
which uses a new integral field polarimetry architecture to provide high contrast linear …

Complex spiral structure in the HD 100546 transitional disk as revealed by GPI and MagAO

KB Follette, J Rameau, R Dong, L Pueyo… - The Astronomical …, 2017 - iopscience.iop.org
We present optical and near-infrared high-contrast images of the transitional disk HD
100546 taken with the Magellan Adaptive Optics system (MagAO) and the Gemini Planet …