Publications (11)
A Population of Faint Extended Line Emitters and the Host Galaxies of Optically Thick QSO Absorption Systems
Michael Rauch, Martin Haehnelt, Andrew Bunker +10
We have conducted a long slit search for low surface brightness Lyman-alpha emitters at redshift 2.67 < z < 3.75. A 92 hour long exposure with VLT/FORS2 down to a 1-sigma surface b…
Tests of the Accelerating Universe with Near-Infrared Observations of a High-Redshift Type Ia Supernova
Adam G. Riess, Alexei V. Filippenko, Michael C. Liu +25
We have measured the rest-frame B,V, and I-band light curves of a high-redshift type Ia supernova (SN Ia), SN 1999Q (z=0.46), using HST and ground-based near-infrared detectors. A…
Demonstrating predictive wavefront control with the Keck II near-infrared pyramid wavefront sensor
Rebecca Jensen-Clem, Charlotte Z. Bond, Sylvain Cetre +5
The success of ground-based instruments for high contrast exoplanet imaging depends on the degree to which adaptive optics (AO) systems can mitigate atmospheric turbulence. While m…
Gemini Planet Imager Observational Calibration XIII: Wavelength Calibration Improvements, Stability, and Nonlinearity
Schuyler G. Wolff, Kimberly Ward-Duong, Joe Zalesky +3
We present improvements to the wavelength calibration for the lenslet-based Integral Field Spectrograph (IFS), that serves as the science instrument for the Gemini Planet Imager (G…
Characterization of the Atmospheric Dispersion Corrector of the Gemini Planet Imager
Pascale Hibon, Sandrine Thomas, Jennifer Dunn +18
An Atmospheric Dispersion Corrector (ADC) uses a double-prism arrangement to nullify the vertical chromatic dispersion introduced by the atmosphere at non-zero zenith distances. Th…
XBIDetective: Leveraging Vision Language Models for Identifying Cross-Browser Visual Inconsistencies
Balreet Grewal, James Graham, Jeff Muizelaar +4
Browser rendering bugs can be challenging to detect for browser developers, as they may be triggered by very specific conditions that are exhibited on only a very small subset of w…
Resolving debris discs in the far-infrared: early highlights from the DEBRIS survey
DEBRIS Collaboration, Brenda Matthews, Bruce Sibthorpe +30
We present results from the earliest observations of DEBRIS, a Herschel Key Programme to conduct a volume- and flux-limited survey for debris discs in A-type through M-type stars.…
orbitize!: A Comprehensive Orbit-fitting Software Package for the High-contrast Imaging Community
Sarah Blunt, Jason Wang, Isabel Angelo +10
orbitize! is an open-source, object-oriented software package for fitting the orbits of directly-imaged objects. It packages the Orbits for the Impatient (OFTI) algorithm and a par…
New Exoplanet Surveys in the Canadian High Arctic at 80 Degrees North
Nicholas M. Law, Suresh Sivanandam, Richard Murowinski +7
Observations from near the Eureka station on Ellesmere Island, in the Canadian High Arctic at 80 degrees North, benefit from 24-hour darkness combined with dark skies and long clou…
Upgrading the Gemini Planet Imager: GPI 2.0
Jeffrey K. Chilcote, Vanessa P. Bailey, Rob De Rosa +10
The Gemini Planet Imager (GPI) is the dedicated high-contrast imaging facility, located on Gemini South, designed for the direct detection and characterization of young Jupiter mas…
Automated data processing architecture for the Gemini Planet Imager Exoplanet Survey
Jason Wang, Marshall Perrin, Dmitry Savransky +49
The Gemini Planet Imager Exoplanet Survey (GPIES) is a multi-year direct imaging survey of 600 stars to discover and characterize young Jovian exoplanets and their environments. We…