activity
20022026
most citedThe Gemini Planet Imager: First Light

714 citations · 8.2k across the 140 of their papers we have counts for

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Showing astro-ph.EPShow all

90 papers · 1 filter

astro-ph.EP2026

Migration and Evolution of giant ExoPlanets (MEEP). III. Twenty-Nine Giant Planets from the TESS Mission

Jack Schulte, Joseph E. Rodriguez, David W. Latham +97

We present the discovery and characterization of 29 hot and warm Jupiter systems transiting bright () FGK stars using TESS data and ground-based photometry and spectrosco…

astro-ph.EP2025★ 3 cited

HD 143811 AB b: A Directly Imaged Planet Orbiting a Spectroscopic Binary in Sco-Cen

Nathalie K. Jones, Jason J. Wang, Eric L. Nielsen +51

We present confirmation of HD 143811 AB b, a substellar companion to spectroscopic binary HD 143811 AB through direct imaging with the Gemini Planet Imager (GPI) and Keck NIRC2. HD…

astro-ph.EP2025

Characterization of the Host Binary of the Directly Imaged Exoplanet HD 143811 AB b

Anne E. Peck, William Roberson, Eric L. Nielsen +50

HD~143811~AB is the host star to the directly imaged planet HD~143811~AB~b, which was recently discovered using data from the Gemini Planet Imager and Keck NIRC2. A member of the S…

astro-ph.EP2024

Confirmation and Characterization of the Eccentric, Warm Jupiter TIC 393818343 b with a Network of Citizen Scientists

Lauren A. Sgro, Paul A. Dalba, Thomas M. Esposito +21

NASA's Transiting Exoplanet Survey Satellite (TESS) has identified over 7,000 candidate exoplanets via the transit method, with gas giants among the most readily detected due to th…

astro-ph.EP2024

A Uniform Analysis of Debris Disks with the Gemini Planet Imager II: Constraints on Dust Density Distribution Using Empirically-Informed Scattering Phase Functions

Justin Hom, Jennifer Patience, Christine H. Chen +40

Spatially-resolved images of debris disks are necessary to determine disk morphological properties and the scattering phase function (SPF) which quantifies the brightness of scatte…

astro-ph.EP2023★ 13 cited

Giant Outer Transiting Exoplanet Mass (GOT 'EM) Survey: III. Recovery and Confirmation of a Temperate, Mildly Eccentric, Single-Transit Jupiter Orbiting TOI-2010

Christopher R. Mann, Paul A. Dalba, David Lafrenière +48

Large-scale exoplanet surveys like the TESS mission are powerful tools for discovering large numbers of exoplanet candidates. Single-transit events are commonplace within the resul…

astro-ph.EP2023★ 75 cited

Light Curves and Colors of the Ejecta from Dimorphos after the DART Impact

Ariel Graykowski, Ryan A. Lambert, Franck Marchis +41

On 26 September 2022 the Double Asteroid Redirection Test (DART) spacecraft impacted Dimorphos, a satellite of the asteroid 65803 Didymos. Because it is a binary system, it is poss…

astro-ph.EP2023

Testing the Interaction Between a Substellar Companion and a Debris Disk in the HR 2562 System

Stella Yimiao Zhang, Gaspard Duchêne, Robert J. De Rosa +51

The HR 2562 system is a rare case where a brown dwarf companion resides in a cleared inner hole of a debris disk, offering invaluable opportunities to study the dynamical interacti…

astro-ph.EP2022★ 11 cited

A 16 Hour Transit of Kepler-167 e Observed by the Ground-based Unistellar Telescope Network

Amaury Perrocheau, Thomas M. Esposito, Paul A. Dalba +35

More than 5,000 exoplanets have been confirmed and among them almost 4,000 were discovered by the transit method. However, few transiting exoplanets have an orbital period greater…

astro-ph.EP2022★ 7 cited

ODNet: A Convolutional Neural Network for Asteroid Occultation Detection

Dorian Cazeneuve, Franck Marchis, Guillaume Blaclard +3

We propose to design and build an algorithm that will use a Convolutional Neural Network (CNN) and observations from the Unistellar network to reliably detect asteroid occultations…

astro-ph.EP2022★ 39 cited

The TESS-Keck Survey. VIII. Confirmation of a Transiting Giant Planet on an Eccentric 261 day Orbit with the Automated Planet Finder Telescope

Paul A. Dalba, Stephen R. Kane, Diana Dragomir +72

We report the discovery of TOI-2180 b, a 2.8 giant planet orbiting a slightly evolved G5 host star. This planet transited only once in Cycle 2 of the primary Transiting…

astro-ph.EP2021★ 29 cited

(216) Kleopatra, a low density critically rotating M-type asteroid

F. Marchis, L. Jorda, P. Vernazza +36

Context. The recent estimates of the 3D shape of the M/Xe-type triple asteroid system (216) Kleopatra indicated a density of 5 g.cm. Such a high density implies a high metal…

astro-ph.EP2021★ 16 cited

Giant Outer Transiting Exoplanet Mass (GOT 'EM) Survey. II. Discovery of a Failed Hot Jupiter on a 2.7 Year, Highly Eccentric Orbit

Paul A. Dalba, Stephen R. Kane, Zhexing Li +13

Radial velocity (RV) surveys have discovered giant exoplanets on au-scale orbits with a broad distribution of eccentricities. Those with the most eccentric orbits are valuable labo…

astro-ph.EP2021★ 23 cited

An advanced multipole model for (216) Kleopatra triple system

M. Brož, F. Marchis, L. Jorda +37

To interpret adaptive-optics observations of (216) Kleopatra, we need to describe an evolution of multiple moons, orbiting an extremely irregular body and including their mutual in…

astro-ph.EP2021★ 29 cited

Evidence for differentiation of the most primitive small bodies

B. Carry, P. Vernazza, F. Vachier +40

Dynamical models of Solar System evolution have suggested that P-/D-type volatile-rich asteroids formed in the outer Solar System and may be genetically related to the Jupiter Troj…

astro-ph.EP2020★ 26 cited

Gemini Planet Imager Spectroscopy of the Dusty Substellar Companion HD 206893 B

K. Ward-Duong, J. Patience, K. Follette +55

We present new near-infrared Gemini Planet Imager (GPI) spectroscopy of HD 206893 B, a substellar companion orbiting within the debris disk of its F5V star. The , , , and…

astro-ph.EP2020★ 25 cited

Binary asteroid (31) Euphrosyne: Ice-rich and nearly spherical

B. Yang, J. Hanus, B. Carry +38

Asteroid (31) Euphrosyne is one of the biggest objects in the asteroid main belt and the Euphrosyne family occupies a highly inclined region in the outer main belt and contains a r…

astro-ph.EP2020★ 31 cited

Multiband Polarimetric Imaging of HR 4796A with the Gemini Planet Imager

Pauline Arriaga, Michael P. Fitzgerald, Gaspard Duchêne +49

HR4796A hosts a well-studied debris disk with a long history due to its high fractional luminosity and favorable inclination lending itself well to both unresolved and resolved obs…

astro-ph.EP2020★ 1 cited

Debris Disk Results from the Gemini Planet Imager Exoplanet Survey's Polarimetric Imaging Campaign

Thomas M. Esposito, Paul Kalas, Michael P. Fitzgerald +62

We report the results of a -year direct imaging survey of 104 stars to resolve and characterize circumstellar debris disks in scattered light as part of the Gemini Planet…

astro-ph.EP2020★ 52 cited

Utilizing Small Telescopes Operated by Citizen Scientists for Transiting Exoplanet Follow-up

Robert T. Zellem, Kyle A. Pearson, Ethan Blaser +41

Due to the efforts by numerous ground-based surveys and NASA's Kepler and TESS, there will be hundreds, if not thousands, of transiting exoplanets ideal for atmospheric characteriz…

astro-ph.EP2019★ 18 cited

(704) Interamnia: A transitional object between a dwarf planet and a typical irregular-shaped minor body

J. Hanuš, P. Vernazza, M. Viikinkoski +56

With an estimated diameter in the 320 to 350 km range, (704) Interamnia is the fifth largest main belt asteroid and one of the few bodies that fills the gap in size between the fou…

astro-ph.EP2019★ 49 cited

The Gemini Planet Imager Exoplanet Survey: Dynamical Mass of the Exoplanet beta Pictoris b from Combined Direct Imaging and Astrometry

Eric L. Nielsen, Robert J. De Rosa, Jason J. Wang +51

We present new observations of the planet beta Pictoris b from 2018 with GPI, the first GPI observations following conjunction. Based on these new measurements, we perform a joint…

astro-ph.EP2019★ 20 cited

First Resolved Scattered-Light Images of Four Debris Disks in Scorpius-Centaurus with the Gemini Planet Imager

Justin Hom, Jennifer Patience, Thomas M. Esposito +57

We present the first spatially resolved scattered-light images of four debris disks around members of the Scorpius-Centaurus (Sco-Cen) OB Association with high-contrast imaging and…

astro-ph.EP2019★ 9 cited

Observational Investigation of the 2013 Near-Earth Encounter by Asteroid (367943) Duende

Nicholas Moskovitz, Conor Benson, Daniel Scheeres +20

On 15 February 2013, the asteroid 367943 Duende (2012 DA14) experienced a near-Earth encounter at an altitude of 27,700 km or 4.2 Earth radii. We present here the results of an ext…