activity
20182026
most citedSimulated Analogs of Merging Galaxy Clusters Constrain the Viewing Angle

22 citations · 22 across the 6 of their papers we have counts for

collaborators

8 papers

astro-ph.IM2026

NIRC2-Pol: First Light of Near-Infrared Polarimetry on Keck II

Briley L. Lewis, Manxuan Zhang, Maxwell A. Millar-Blanchaer +21

NIRC2, the Near Infrared Camera 2 on the Keck II telescope, was recently upgraded with a new suite of polarimetric observing modes. The new polarimetry modes (referred to as NIRC2-…

astro-ph.IM2026

Enabling Quantitative Polarimetry for Keck/NIRC2: Preliminary Mueller Matrix Model Calibration

Manxuan Zhang, Briley L. Lewis, Maxwell A. Millar-Blanchaer +27

The Keck/NIRC2 infrared imager was upgraded in 2025 with dual-beam polarimetric observing modes spanning approximately 1.1--4.1 microns (JHKL' bands). We present a preliminary JHK…

astro-ph.IM2026

An open-source data processing pipeline for Keck / NIRC2-Polarimetry

Briley L. Lewis, Maxwell A. Millar-Blanchaer, Rebecca Zhang +3

The Keck/NIRC2 infrared imager was recently upgraded with a new suite of polarimetric observing modes. This polarimetry upgrade (referred to as NIRC2-Pol) will open up a wide range…

astro-ph.IM2024

GPI 2.0: Exploring The Impact of Different Readout Modes on the Wavefront Sensor's EMCCD

Clarissa R. Do Ó, Saavidra Perera, Jérôme Maire +26

The Gemini Planet Imager (GPI) is a high contrast imaging instrument that aims to detect and characterize extrasolar planets. GPI is being upgraded to GPI 2.0, with several subsyst…

astro-ph.SR2024

Orbital and Atmospheric Characterization of the 1RXS J034231.8+121622 System Using High-Resolution Spectroscopy Confirms That The Companion is a Low-Mass Star

Clarissa R. Do Ó, Ben Sappey, Quinn M. Konopacky +33

The 1RXS J034231.8+121622 system consists of an M dwarf primary and a directly imaged low-mass stellar companion. We use high resolution spectroscopic data from Keck/KPIC to estima…

astro-ph.IM2023

GPI 2.0: Performance Evaluation of the Wavefront Sensor's EMCCD

Clarissa R. Do Ó, Saavidra Perera, Jérôme Maire +26

The Gemini Planet Imager (GPI) is a high contrast imaging instrument that aims to detect and characterize extrasolar planets. GPI is being upgraded to GPI 2.0, with several subsyst…

astro-ph.SR2021

Trigonometric parallaxes of two T dwarfs with Keck and ShaneAO astrometry

Jayke Nguyen, S. Mark Ammons, Kaitlin Dennison +4

We present trigonometric parallax and proper motion measurements for two T-type brown dwarfs. We derive our measurements from infrared laser guide star adaptive optics observations…

astro-ph.CO2018★ 22 cited

Simulated Analogs of Merging Galaxy Clusters Constrain the Viewing Angle

David Wittman, B Hunter Cornell, Jayke Nguyen

A key uncertainty in interpreting observations of bimodal merging galaxy clusters is the unknown angle between the subcluster separation vector and the plane of the sky. We present…