139 citations · 707 across the 15 of their papers we have counts for
15 papers
Intra-pixel response characterization of a HgCdTe near infrared detector with a pronounced crosshatch pattern
Charles Shapiro, Eric Huff, Roger Smith
The "crosshatch" pattern is a recurring "feature" of HgCdTe arrays, specifically the Teledyne HAWAII family of near infrared detectors. It is a fixed pattern of high frequency QE v…
WFIRST Science Investigation Team "Cosmology with the High Latitude Survey" Annual Report 2017
Olivier Doré, Christopher Hirata, Yun Wang +46
Cosmic acceleration is the most surprising cosmological discovery in many decades. Testing and distinguishing among possible explanations requires cosmological measurements of extr…
Precision Projector Laboratory: Detector Characterization with an Astronomical Emulation Testbed
Charles Shapiro, Roger Smith, Eric Huff +7
As astronomical observations from space benefit from improved sensitivity, the effectiveness of scientific programs is becoming limited by systematics that often originate in poorl…
The Impact of Interpixel Capacitance in CMOS Detectors on PSF shapes and Implications for WFIRST
Arun Kannawadi, Charles A. Shapiro, Rachel Mandelbaum +3
Unlike optical CCDs, near-infrared detectors, which are based on CMOS hybrid readout technology, typically suffer from electrical crosstalk between the pixels. The interpixel capac…
Weak Gravitational Lensing Systematics from Image Combination
Charles Shapiro, Barnaby Rowe, Timothy Goodsall +5
Extremely accurate shape measurements of galaxy images are needed to probe dark energy properties with weak gravitational lensing surveys. To increase survey area with a fixed obse…
The Effect of Weak Lensing on Distance Estimates from Supernovae
Mathew Smith, David J. Bacon, Robert C. Nichol +14
Using a sample of 608 Type Ia supernovae from the SDSS-II and BOSS surveys, combined with a sample of foreground galaxies from SDSS-II, we estimate the weak lensing convergence for…