The Infrared Imaging Spectrograph (IRIS) for TMT: the atmospheric dispersion corrector [PDF]
, 2010 We present a conceptual design for the atmospheric dispersion corrector (ADC) for TMT's Infrared Imaging Spectrograph (IRIS). The severe requirements of this ADC are reviewed, as are limitations to observing caused by uncorrectable atmospheric effects ...
Bauman, Brian J. +6 more
core +2 more sources
First Constraints on Helium +He3 Evolution in z = 3–4 Using the 8.67 GHz Hyperfine Transition
The Astrophysical Journal, 2023 We present the first constraints on the cross-correlation power spectrum of the He ii ( ^+ He ^3 ) signal strength using the redshifted 8.67 GHz hyperfine transition between z = 2.9 and 4.1 and with interferometric data obtained from the public archive ...
Cathryn M. Trott, Randall B. Wayth
doaj +1 more source
Astronomical photonics in the context of infrared interferometry and high-resolution spectroscopy
, 2016 We review the potential of Astrophotonics, a relatively young field at the interface between photonics and astronomical instrumentation, for spectro-interferometry.
Aggarwal +18 more
core +3 more sources
Reengineering observatory operations for the time domain
, 2014 Observatories are complex scientific and technical institutions serving diverse users and purposes. Their telescopes, instruments, software, and human resources engage in interwoven workflows over a broad range of timescales.
Hessman, Frederic V. +2 more
core +1 more source
BLAST Autonomous Daytime Star Cameras [PDF]
, 2006 We have developed two redundant daytime star cameras to provide the fine pointing solution for the balloon-borne submillimeter telescope, BLAST. The cameras are capable of providing a reconstructed pointing solution with an absolute accuracy < 5 ...
Chapin, Edward +6 more
core +2 more sources
The Australian Space Eye: studying the history of galaxy formation with a CubeSat
, 2016 The Australian Space Eye is a proposed astronomical telescope based on a 6U CubeSat platform. The Space Eye will exploit the low level of systematic errors achievable with a small space based telescope to enable high accuracy measurements of the optical ...
Barraclough, Simon +17 more
core +1 more source
An Optical Distortion Solution for the Keck I OSIRIS Imager
The Astronomical Journal, 2023 The astrometric precision and accuracy of an imaging camera is often limited by geometric optical distortions. These must be calibrated and removed to measure precise proper motions, orbits, and gravitationally lensed positions of interesting ...
Matthew S. R. Freeman +8 more
doaj +1 more source
Photonic lattices for astronomical interferometry
, 2012 Regular two-dimensional lattices of evanescently coupled waveguides may provide in the near future photonic components capable of combining interferometrically and simultaneously a large number of telescopes, thus easing the imaging capabilities of ...
Minardi, Stefano
core +1 more source
Imaging and Characterization of Extrasolar Planets with the Next Generation of Space Telescopes
Geosciences, 2018 The study and characterization of the exoplanets’ atmospheres and composition is in its infancy. The large facilities that will make feasible to image an exo-Earth are currently under study.
Ana I. Gómez de Castro
doaj +1 more source
The GRAVITY fringe tracker: correlation between optical path residuals and atmospheric parameters
, 2018 After the first year of observations with the GRAVITY fringe tracker, we compute correlations between the optical path residuals and atmospheric and astronomical parameters. The median residuals of the optical path residuals are 180 nm on the ATs and 270
Abuter, R. +10 more
core +1 more source