activity
20202026
most citedThe JWST Early Release Science Program for Direct Observations of Exoplanetary Systems II: A 1 to 20 Micron Spectrum of the Planetary-Mass Companion VHS 1256-1257 b

176 citations · 389 across the 29 of their papers we have counts for

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10 papers · 1 filter

astro-ph.IM2026

Laboratory demonstration of low order wavefront control using light reflected off the vortex coronagraph

Clarissa R. Do Ó, Kane Sjoberg, Luke Lamitina +4

The Astro2020 Decadal Survey identified exoplanet imaging as a high priority for the Habitable Worlds Observatory (HWO), which must image and characterize exo-Earths at contrasts o…

astro-ph.IM2025

Wavefront Error Recovery and Companion Identification with the James Webb Space Telescope

Matthew De Furio, Marie Ygouf, Alexandra Greenbaum +8

The James Webb Space Telescope is orders of magnitude more sensitive than any other facility across the near to mid-infrared wavelengths. Many approved programs take advantage of i…

astro-ph.IM2024

orbitize! v3: Orbit fitting for the High-contrast Imaging Community

Sarah Blunt, Jason Jinfei Wang, Lea Hirsch +18

orbitize! is a package for Bayesian modeling of the orbital parameters of resolved binary objects from time series measurements. It was developed with the needs of the high-contras…

astro-ph.IM2024

Implicit Electric Field Conjugation Through a Single-mode Fiber

Joshua Liberman, Jorge Llop-Sayson, Arielle Bertrou-Cantou +4

Connecting a coronagraph instrument to a spectrograph via a single-mode optical fiber is a promising technique for characterizing the atmospheres of exoplanets with ground and spac…

astro-ph.IM2023★ 4 cited

Benefits of adding radial phase dimples on scalar coronagraph phase masks

Niyati Desai, Dimitri Mawet, Eugene Serabyn +4

Current scalar coronagraph focal plane mask designs are performance-limited by chromaticity. We investigate the effects of adding central Roddier and dual zone phase dimples to sca…

astro-ph.IM2023★ 13 cited

Laboratory demonstration of the wrapped staircase scalar vortex coronagraph

Niyati Desai, Garreth J. Ruane, Jorge D. Llop-Sayson +5

Of the over 5000 exoplanets that have been detected, only about a dozen have ever been directly imaged. Earth-like exoplanets are on the order of 10 billion times fainter than thei…

astro-ph.IM2022★ 6 cited

Topological Designs for Scalar Vortex Coronagraphs

Niyati Desai, Jorge Llop-Sayson, Arielle Bertrou-Cantou +4

The detection and characterization of Earth-like exoplanets around Sun-like stars for future flagship missions requires coronagraphs to achieve contrasts on the order of 1e-10 at c…

astro-ph.IM2022★ 3 cited

High Contrast Demonstrations of Novel Scalar Vortex Coronagraph Designs at the High Contrast Spectroscopy Testbed

Niyati Desai, Jorge Llop-Sayson, Nemanja Jovanovic +4

For direct imaging of exoplanets, Scalar Vortex Coronagraphs (SVCs) are an attractive alternative to the popularly used Vector Vortex Coronagraphs (VVCs). This is primarily because…

astro-ph.IM2021

New method to achieve the proper polarization state for a vector vortex coronagraph

Jorge Llop-Sayson, Cole Kappel, Nemanja Jovanovic +1

The vector vortex coronagraph (VVC) performance in the laboratory and in ground-based observatories has earned it a spot on the NASA mission concepts HabEx and LUVOIR. The VVC indu…

astro-ph.IM2020★ 9 cited

High-contrast Demonstration of an Apodized Vortex Coronagraph

Jorge Llop-Sayson, Garreth Ruane, Dimitri Mawet +7

High contrast imaging is the primary path to the direct detection and characterization of Earth-like planets around solar-type stars; a cleverly designed internal coronagraph suppr…