Publications (8)
Critical Star-Formation Rates for Reionization: Full Reionization occurs at z = 7
Michael Shull, Anthony Harness, Michele Trenti +1
We assess the probable redshift (z_rei ~ 7) for full reionization of the intergalactic medium (IGM) using a prescription for the co-moving star-formation-rate (SFR) density (rho_SF…
Lightweight starshade position sensing with convolutional neural networks and simulation-based inference
Andrew Chen, Anthony Harness, Peter Melchior
Starshades are a leading technology to enable the direct detection and spectroscopic characterization of Earth-like exoplanets. To keep the starshade and telescope aligned over lar…
Bernoulli generalized likelihood ratio test for signal detection from photon counting images
Mengya Hu, He Sun, Anthony Harness +1
Because exoplanets are extremely dim, an Electron Multiplying Charged Coupled Device (EMCCD) operating in photon counting (PC) mode is necessary to reduce the detector noise level…
Exoplanet Detection in Starshade Images
Mengya, Hu, Anthony Harness +2
A starshade suppresses starlight by a factor of 1E11 in the image plane of a telescope, which is crucial for directly imaging Earth-like exoplanets. The state of the art in high co…
Guest Editorial: Overview of the Special Issue and a Dialog on Starshades
Jonathan Arenberg, Anthony Harness, Rebecca Jensen-Clem
This special issue is dedicated to starshades: science, engineering, technology and programmatics. Our reasons for organizing this special issue are several fold. First as a new te…
Optical Verification Experiments of Sub-scale Starshades
Anthony Harness, Stuart Shaklan, Phillip Willems +7
Starshades are a leading technology to enable the detection and spectroscopic characterization of Earth-like exoplanets. In this paper we report on optical experiments of sub-scale…
Implementing non-scalar diffraction in Fourier optics via the Braunbek method
Anthony Harness
Fourier optics is a powerful and efficient tool for solving many diffraction problems, but relies on the assumption of scalar diffraction theory and ignores the three-dimensional s…
High Contrast Observations of Bright Stars with a Starshade
Anthony Harness, Webster Cash, Steve Warwick
Starshades are a leading technology to enable the direct detection and spectroscopic characterization of Earth-like exoplanets. In an effort to advance starshade technology through…