254 citations · 693 across the 19 of their papers we have counts for
10 papers · 1 filter
Spectroscopic flat-fields can be used for precision CCD gain and noise tests
J. Gordon Robertson
One of the basic parameters of a CCD camera is its gain, i.e. the number of detected electrons per output Analogue to Digital Unit (ADU). This is normally determined by finding the…
Alternative approach to precision narrow-angle astrometry for Antarctic long baseline interferometry
Y. Kok, M. J. Ireland, A. C. Rizzuto +4
The conventional approach to high-precision narrow-angle astrometry using a long baseline interferometer is to directly measure the fringe packet separation of a target and a nearb…
Beating the classical limit: A diffraction-limited spectrograph for an arbitrary input beam
Christopher H. Betters, Sergio G. Leon-Saval, J. Gordon Robertson +1
We demonstrate a new approach to classical fiber-fed spectroscopy. Our method is to use a photonic lantern that converts an arbitrary (e.g. incoherent) input beam into N diffractio…
A low cost scheme for high precision dual-wavelength laser metrology
Yitping Kok, Michael J. Ireland, J. Gordon Robertson +3
A novel method capable of delivering relative optical path length metrology with nanometer precision is demonstrated. Unlike conventional dual-wavelength metrology which employs he…
Science and Technology Progress at the Sydney University Stellar Interferometer
J. Gordon Robertson, Michael J. Ireland, William J. Tango +6
This paper presents an overview of recent progress at the Sydney University Stellar Interferometer (SUSI). Development of the third-generation PAVO beam combiner has continued. The…
Simulating a dual beam combiner at SUSI for narrow-angle astrometry
Yitping Kok, Vicente Maestro, Michael J Ireland +2
The Sydney University Stellar Interferometer (SUSI) has two beam combiners, i.e. the Precision Astronomical Visible Observations (PAVO) and the Microarcsecond University of Sydney…