activity
19982024
most citedDirect Imaging of Multiple Planets Orbiting the Star HR 8799

1.8k citations · 18.1k across the 197 of their papers we have counts for

collaborators

198 papers

astro-ph.EP2024★ 25 cited

The JWST/NIRISS Deep Spectroscopic Survey for Young Brown Dwarfs and Free-Floating Planets

Adam B. Langeveld, Aleks Scholz, Koraljka Mužić +9

The discovery and characterization of free-floating planetary-mass objects (FFPMOs) is fundamental to our understanding of star and planet formation. Here we report results from an…

astro-ph.EP2024★ 2 cited

The James Webb Interferometer: Space-based interferometric detections of PDS 70 b and c at 4.8 m

Dori Blakely, Doug Johnstone, Gabriele Cugno +22

We observed the planet-hosting system PDS 70 with the James Webb Interferometer, JWST's Aperture Masking Interferometric (AMI) mode within NIRISS. Observing with the F480M filter c…

astro-ph.EP2023

Characterizing the Near-infrared Spectra of Flares from TRAPPIST-1 During JWST Transit Spectroscopy Observations

Ward S. Howard, Adam F. Kowalski, Laura Flagg +16

We present the first analysis of JWST near-infrared spectroscopy of stellar flares from TRAPPIST-1 during transits of rocky exoplanets. Four flares were observed from 0.6--2.8 m…

astro-ph.EP2023★ 64 cited

Near-Infrared Transmission Spectroscopy of HAT-P-18b with NIRISS: Disentangling Planetary and Stellar Features in the Era of JWST

Marylou Fournier-Tondreau, Ryan J. MacDonald, Michael Radica +24

The JWST Early Release Observations (ERO) included a NIRISS/SOSS (0.6-2.8m) transit of the 850K Saturn-mass exoplanet HAT-P-18b. Initial analysis of these data…

astro-ph.SR2023★ 1 cited

Comprehensive High-resolution Chemical Spectroscopy of Barnard's Star with SPIRou

Farbod Jahandar, René Doyon, Étienne Artigau +17

Determination of fundamental parameters of stars impacts all fields of astrophysics, from galaxy evolution to constraining the internal structure of exoplanets. This paper presents…

astro-ph.IM2023

The development of HISPEC for Keck and MODHIS for TMT: science cases and predicted sensitivities

Quinn M. Konopacky, Ashley D. Baker, Dimitri Mawet +72

HISPEC is a new, high-resolution near-infrared spectrograph being designed for the W.M. Keck II telescope. By offering single-shot, R=100,000 between 0.98 - 2.5 um, HISPEC will ena…