A5040825069- Adaptive optics and wavefront sensing
- Stellar, planetary, and galactic studies
- Astronomy and Astrophysical Research
- Planetary Science and Exploration
- Galaxies: Formation, Evolution, Phenomena
- Radio Astronomy Observations and Technology
- Astro and Planetary Science
- CCD and CMOS Imaging Sensors
- Calibration and Measurement Techniques
- History and Developments in Astronomy
The Ohio State University
2023-2024
Abstract Directly imaging temperate rocky planets orbiting nearby, Sun-like stars with a 6 m class IR/O/UV space telescope, recently dubbed the Habitable Worlds Observatory, is high-priority goal of Astro2020 Decadal Survey. To prepare for future direct (DI) surveys, list potential targets should be thoroughly vetted to maximize efficiency and scientific yield. We present an analysis archival radial velocity data southern from NASA/NSF Extreme Precision Radial Velocity (EPRV) Working Group’s...
Abstract The Nancy Grace Roman Space Telescope will implement a devoted weak gravitational lensing program with its High Latitude Wide Area Survey. For cosmological purposes, critical step in image processing is to combine dithered undersampled images into unified oversampled and thus enable high-precision shape measurements. I mcom an coaddition algorithm that offers control over point-spread functions output images. This paper presents the refactored software, featuring full...
ABSTRACT The upcoming Nancy Grace Roman Space Telescope will carry out a wide-area survey in the near-infrared. A key science objective is measurement of cosmic structure via weak gravitational lensing. data be undersampled, which introduces new challenges source galaxy shapes; potential solution to use linear algebra-based coaddition techniques such as imcom that combine multiple undersampled images produce single oversampled output mosaic with desired ‘target’ point spread function (PSF)....
ABSTRACT One challenge for applying current weak lensing analysis tools to the Nancy Grace Roman Space Telescope is that individual images will be undersampled. Our companion paper presented an initial application of Imcom – algorithm builds optimal mapping from input output pixels reconstruct a fully sampled combined image on simulations. In this paper, we measure noise power spectra, identify sources major features in and show simple analytic models ignore sampling effects underestimate...
Abstract The Nancy Grace Roman Space Telescope, set to launch in 2026, will bring unprecedented precision measurements of weak gravitational lensing. Because lensing is an inherently small signal, it imperative minimize systematic errors as completely possible; this ensure that the can be used their full potential when extracting cosmological information. In paper, we use laboratory tests detectors, simulations High Latitude Survey observations, and proposed image combination pipeline...
One challenge for applying current weak lensing analysis tools to the Nancy Grace Roman Space Telescope is that individual images will be undersampled. Our companion paper presented an initial application of Imcom - algorithm builds optimal mapping from input output pixels reconstruct a fully sampled combined image on simulations. In this paper, we measure noise power spectra, identify sources major features in and show simple analytic models ignore sampling effects underestimate spectra...
The upcoming Nancy Grace Roman Space Telescope will carry out a wide-area survey in the near infrared. A key science objective is measurement of cosmic structure via weak gravitational lensing. data be undersampled, which introduces new challenges source galaxy shapes; potential solution to use linear algebra-based coaddition techniques such as Imcom that combine multiple undersampled images produce single oversampled output mosaic with desired "target" point spread function (PSF). We...
The Nancy Grace Roman Space Telescope will implement a devoted weak gravitational lensing program with its High Latitude Wide Area Survey. For cosmological purposes, critical step in image processing is to combine dithered undersampled images into unified oversampled and thus enable high-precision shape measurements. IMCOM an coaddition algorithm which offers control over point spread functions output images. This paper presents the refactored software, featuring full object-oriented...
The Nancy Grace Roman Space Telescope, set to launch in 2026, will bring unprecedented precision measurements of weak gravitational lensing. Because lensing is an inherently small signal, it imperative minimize systematic errors as completely possible; this ensure that the can be used their full potential when extracting cosmological information. In paper, we use laboratory tests detectors, simulations High Latitude Survey observations, and proposed image combination pipeline investigate...
Directly imaging temperate rocky planets orbiting nearby, Sun-like stars with a 6-m-class IR/O/UV space telescope, recently dubbed the Habitable Worlds Observatory, is high priority goal of Astro2020 Decadal Survey. To prepare for future direct surveys, list potential targets should be thoroughly vetted to maximize efficiency and scientific yield. We present an analysis archival radial velocity data southern from NASA/NSF Extreme Precision Radial Velocity Working Group's target missions...