Publications (51)
GHOST Commissioning Science Results: Identifying a new chemically peculiar star in Reticulum II
Christian R. Hayes, Kim A. Venn, Fletcher Waller +79
The Gemini High-resolution Optical SpecTrograph (GHOST) is the newest high resolution spectrograph to be developed for a large aperture telescope, recently deployed and commissione…
Developing arrayed waveguide grating spectrographs for multi-object astronomical spectroscopy
Nick Cvetojevic, Nemanja Jovanovic, Jon Lawrence +2
With the aim of utilizing arrayed waveguide gratings for multi-object spectroscopy in the field of astronomy, we outline several ways in which standard telecommunications grade chi…
White Paper on MAAT@GTC
Francisco Prada, Robert Content, Ariel Goobar +41
MAAT is proposed as a visitor mirror-slicer optical system that will allow the OSIRIS spectrograph on the 10.4-m Gran telescopio CANARIAS (GTC) the capability to perform Integral F…
The SAMI galaxy survey: Galaxy Interactions and Kinematic Anomalies in Abell 119
Sree Oh, Sukyoung K. Yi, Luca Cortese +25
Galaxy mergers are important events that can determine the fate of a galaxy by changing its morphology, star-formation activity and mass growth. Merger systems have commonly been i…
The Science Performance of the Gemini High Resolution Optical Spectrograph
Alan W. McConnachie, Christian R. Hayes, J. Gordon Robertson +46
The Gemini High Resolution Optical Spectrograph (GHOST) is a fiber-fed spectrograph system on the Gemini South telescope that provides simultaneous wavelength coverage from 348 - 1…
Hector - a new massively multiplexed IFS instrument for the Anglo-Australian Telescope
Julia J. Bryant, Joss Bland-Hawthorn, Jon Lawrence +14
Hector will be the new massively-multiplexed integral field spectroscopy (IFS) instrument for the Anglo-Australian Telescope (AAT) in Australia and the next main dark-time instrume…
The Australian Space Eye: studying the history of galaxy formation with a CubeSat
Anthony Horton, Lee Spitler, Naomi Mathers +15
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…
Exoplanets in the Antarctic Sky. I. The First Data Release of AST3-II (CHESPA) and New Found Variables within the Southern CVZ of TESS
Hui Zhang, Zhouyi Yu, Ensi Liang +37
Located at Dome A, the highest point of the Antarctic plateau, the Chinese Kunlun station is considered to be one of the best ground-based photometric sites because of its extremel…
GHOST Commissioning Science Results II: a very metal-poor star witnessing the early Galactic assembly
Federico Sestito, Christian R. Hayes, Kim A. Venn +25
This study focuses on Pristine (hereafter P180956, ), a star selected from the Pristine Inner Galaxy Survey (PIGS), and followed-up…
The SAMI Galaxy Survey: Using concentrated star-formation and stellar population ages to understand environmental quenching
Di Wang, Scott M. Croom, Julia J. Bryant +16
We study environmental quenching using the spatial distribution of current star-formation and stellar population ages with the full SAMI Galaxy Survey. By using a star-formation co…
PRAXIS: low thermal emission high efficiency OH suppressed fibre spectrograph
Robert Content, Joss Bland-Hawthorn, Simon Ellis +12
PRAXIS is a second generation instrument that follows on from GNOSIS, which was the first instrument using fibre Bragg gratings for OH background suppression. The Bragg gratings re…
The Blue Multi Unit Spectroscopic Explorer (BlueMUSE) on the VLT: science drivers and overview of instrument design
Johan Richard, Rémi Giroud, Florence Laurent +47
BlueMUSE is a blue-optimised, medium spectral resolution, panoramic integral field spectrograph under development for the Very Large Telescope (VLT). With an optimised transmission…
WST -- Widefield Spectroscopic Telescope: addressing the instrumentation challenges of a new 12m class telescope dedicated to widefield Multi-object and Integral Field Spectroscopy
David Lee, Joel D. R. Vernet, Roland Bacon +23
WST - Widefield Spectroscopic Telescope: We summarise the design challenges of instrumentation for a proposed 12m class Telescope that aims to provide a large (>2.5 square degree)…
Photonic lantern behaviour and implications for instrument design
Anthony Horton, Robert Content, Simon Ellis +1
Photonic lanterns are an important enabling technology for astrophotonics with a wide range of potential applications including fibre Bragg grating OH suppression, integrated photo…
GHOST Commissioning Science Results III: Characterizing an iron-poor damped Lyman system
Trystyn A. M. Berg, Christian R. Hayes, Stefano Cristiani +20
The Gemini High-resolution Optical SpecTrograph (GHOST) is a new echelle spectrograph available on the Gemini-South telescope as of Semester 2024A. We present the first high resolu…
The SAMI Galaxy Survey: a new method to estimate molecular gas surface densities from star formation rates
Christoph Federrath, Diane M. Salim, Anne M. Medling +16
Stars form in cold molecular clouds. However, molecular gas is difficult to observe because the most abundant molecule (H2) lacks a permanent dipole moment. Rotational transitions…
The Science Performance of JWST as Characterized in Commissioning
Jane Rigby, Marshall Perrin, Michael McElwain +623
This paper characterizes the actual science performance of the James Webb Space Telescope (JWST), as determined from the six month commissioning period. We summarize the performanc…
Scientific Goals of the Kunlun Infrared Sky Survey (KISS)
Michael Burton, Jessica Zheng, Jeremy Mould +10
The high Antarctic plateau provides exceptional conditions for conducting infrared observations of the cosmos on account of the cold, dry and stable atmosphere above the ice surfac…
The SAMI Galaxy Survey: Can we trust aperture corrections to predict star formation?
Samuel Nathan Richards, Julia Bryant, Scott Croom +21
In the low redshift Universe (z<0.3), our view of galaxy evolution is primarily based on fibre optic spectroscopy surveys. Elaborate methods have been developed to address aperture…
Accuracy of Shack-Hartmann wavefront sensor using a coherent wound fibre image bundle
Jessica R. Zheng, Michael Goodwin, Jon Lawrence
Shack-Hartmann wavefront sensors using wound fibre bundles are desired for multi-object adaptive optical systems to provide large multiplex positioned by Starbugs. The use of the l…
Focal ratio degradation in lightly-fused hexabundles
Julia Bryant, Joss Bland-Hawthorn, Lisa Fogarty +2
We are now moving into an era where multi-object wide-field surveys, which traditionally use single fibres to observe many targets simultaneously, can exploit compact integral fiel…
WST Multi-Object Spectrograph Fiber Positioners:Development of a 32,000-Unit Precision Robotic System
Sébastien Pernecker, Maxime Rombach, Malak Galal +13
The Wide-field Spectroscopic Telescope Multi-Object Spectrograph requires an unprecedented fiber positioning system comprising 30'000 low-resolution and 2'000 high-resolution posit…
GHOST commissioning science results -- IV: Chemodynamical analyses of Milky Way satellites Sagittarius II and Aquarius II
Daria Zaremba, Kim Venn, Christian R. Hayes +28
We present Gemini/GHOST high-resolution spectra of five stars observed in two low surface brightness Milky Way satellites, Sagittarius II (Sgr2) and Aquarius II (Aqu2). For Aqu2, t…
Living Machines: A study of atypical animacy
Mariona Coll Ardanuy, Federico Nanni, Kaspar Beelen +7
This paper proposes a new approach to animacy detection, the task of determining whether an entity is represented as animate in a text. In particular, this work is focused on atypi…
Optimising the K dark filter for the Kunlun Infrared Sky Survey
Yushan Li, Jessica Zheng, Peter Tuthill +6
The Kunlun Infrared Sky Survey will be the first comprehensive exploration of the time varying Universe in the infrared. A key feature in optimizing the scientific yield of this am…
3D Free-Form Optical Lens -- Miniaturised Fibre Couplers for Astrophotonics
Haoran Mu, Daniel Smith, Tomas Katkus +14
In astronomy, multi-object spectrographs employ fibre positioning robots to couple the light from multiple astronomy sources (stars or galaxies) into multiple multi-mode fibres, wh…
CUBES Phase A design overview -- The Cassegrain U-Band Efficient Spectrograph for the Very Large Telescope
Alessio Zanutta, Stefano Cristiani, David Atkinson +51
We present the baseline conceptual design of the Cassegrain U-Band Efficient Spectrograph (CUBES) for the Very Large Telescope. CUBES will provide unprecedented sensitivity for spe…
The SAMI Galaxy Survey: the third and final data release
Scott M. Croom, Matt S. Owers, Nicholas Scott +38
We have entered a new era where integral-field spectroscopic surveys of galaxies are sufficiently large to adequately sample large-scale structure over a cosmologically significant…
Starbug fibre positioning robots: performance and reliability enhancements
David M. Brown, Scott Case, James Gilbert +9
Starbugs are miniature piezoelectric walking robots that can be operated in parallel to position many payloads like optical fibers across a telescopes focal plane. They consist of…
Performance of a novel PMMA polymer imaging bundle for field acquisition and wavefront sensing
Samuel Nathan Richards, Sergio Leon-Saval, Michael Goodwin +7
Imaging bundles provide a convenient way to translate a spatially coherent image, yet conventional imaging bundles made from silica fibre optics typically remain expensive with lar…
Photonic Technologies for a Pupil Remapping Interferometer
Peter Tuthill, Nemanja Jovanovic, Sylvestre Lacour +9
Interest in pupil-remapping interferometry, in which a single telescope pupil is fragmented and recombined using fiber optic technologies, has been growing among a number of groups…
The Maunakea Spectroscopic Explorer Book 2018
Alexis Hill, Nicolas Flagey, Alan McConnachie +122
(Abridged) This is the Maunakea Spectroscopic Explorer 2018 book. It is intended as a concise reference guide to all aspects of the scientific and technical design of MSE, for the…
The Taipan Galaxy Survey: Scientific Goals and Observing Strategy
Elisabete da Cunha, Andrew M. Hopkins, Matthew Colless +37
Taipan is a multi-object spectroscopic galaxy survey starting in 2017 that will cover 2pi steradians over the southern sky, and obtain optical spectra for about two million galaxie…
Miniaturized Shack-Hartmann Wavefront-Sensors for Starbugs
Michael Goodwin, Belen Alcalde, Samuel Richards +4
The ability to position multiple miniaturized wavefront sensors precisely over large focal surfaces are advantageous to multi-object adaptive optics. The Australian Astronomical Ob…
CYCLOPS2: the fibre image slicer upgrade for the UCLES high resolution spectrograph
Anthony Horton, C. G. Tinney, Scott Case +10
CYCLOPS2 is an upgrade for the UCLES high resolution spectrograph on the Anglo-Australian Telescope, scheduled for commissioning in semester 2012A. By replacing the 5 mirror Coudé…
Hector Galaxy Survey: Optical IFU and Chandra Reveal a Low-Luminosity AGN Behind Extended LINER Emission
Kyuseok Oh, Gabriella Quattropani, Pratyush Kumar Das +25
We present evidence that the Hector Galaxy Survey galaxy C901005481609968 (), which exhibits spatially extended LINER-like emission in optical integral-field spe…
Single-Molecule Magnets: High-Field Electron Paramagnetic Resonance Evaluation of the Single-Ion Zero-Field Interaction in a Zn3Ni Complex
En-Che Yang, Cem Kirman, Jon Lawrence +4
High-field electron paramagnetic resonance (HFEPR) spectra were collected at several frequencies for single crystal [Zn3.91Ni0.09(hmp)4(dmb)4Cl4] (1), where dmb is 3,3-dimethyl-1-b…
Early Architecture Concepts for the Habitable Worlds Observatory -- System Design, Modeling, and Analysis
Alice, Liu, Marie Levine +30
The Habitable Worlds Observatory (HWO), NASA's next flagship science mission, follows in the tradition of the Nancy Grace Roman Space Telescope and other preceding great observator…
The SAMI Galaxy Survey: mass-kinematics scaling relations
Dilyar Barat, Francesco D'Eugenio, Matthew Colless +17
We use data from the Sydney-AAO Multi-object Integral-field spectroscopy (SAMI) Galaxy Survey to study the dynamical scaling relation between galaxy stellar mass and the gene…
The Sami Galaxy Survey: stellar populations of passive spiral galaxies in different environment
Mina Pak, Sree Oh, Joon Hyeop Lee +17
We investigate the stellar populations of passive spiral galaxies as a function of mass and environment, using integral field spectroscopy data from the Sydney-AAO Multi-object Int…
First Light Results from the Hermes Spectrograph at the AAT
Andrew Sheinis, Borja Anguiano, Martin Asplund +60
The High Efficiency and Resolution Multi Element Spectrograph, HERMES, is a facility-class optical spectrograph for the Anglo-Australian Telescope (AAT). It is designed primarily f…
High multiplex and precision: the design and development of FLEX, a grid-based fiber positioner with large patrol radius and minimized telecentric error
Aaron Omadutt, Roelof S. de Jong, Will Saunders +5
In next-generation spectroscopic facilities, high-multiplex fiber positioning systems must operate within highly constrained focal surfaces, such as the Wide-Field Spectroscopic Te…
Veloce Rosso: Australia's new precision radial velocity spectrograph
James Gilbert, Christoph Bergmann, Gabe Bloxham +24
Veloce is an ultra-stable fibre-fed R4 echelle spectrograph for the 3.9 m Anglo-Australian Telescope. The first channel to be commissioned, Veloce 'Rosso', utilises multiple low-co…
PRAXIS: a low background NIR spectrograph for fibre Bragg grating OH suppression
Anthony Horton, Simon Ellis, Jon Lawrence +1
Fibre Bragg grating (FBG) OH suppression is capable of greatly reducing the bright sky background seen by near infrared spectrographs. By filtering out the airglow emission lines a…
Illuminating the Physics of Cosmic Origin and Evolution: A UK Space Frontiers 2035 White Paper
Florian Beutler, Eva-Maria Mueller, Seshadri Nadathur +61
Understanding the Universe's origins and evolution remains one of the most fundamental challenges in modern cosmology. This white paper explores three key science priorities in thi…
The SAMI galaxy survey: predicting kinematic morphology with logistic regression
Sam P. Vaughan, Jesse van de Sande, A. Fraser-McKelvie +10
We use the SAMI galaxy survey to study the the kinematic morphology-density relation: the observation that the fraction of slow rotator galaxies increases towards dense environment…
ESO-VLT BlueMUSE instrument - Conceptual Design for Phase A
Florence Laurent, Johan Richard, Rémi Giroud +23
BlueMUSE is a blue-optimised, medium spectral resolution, panoramic integral field spectrograph under development for the ESO's Very Large Telescope (VLT). The project is now enter…
Exoplanets in the Antarctic sky. II. 116 Transiting Exoplanet Candidates Found by AST3-II (CHESPA) within the Southern CVZ of TESS
Hui Zhang, Zhouyi Yu, Ensi Liang +37
We report first results from the CHinese Exoplanet Searching Program from Antarctica (CHESPA)---a wide-field high-resolution photometric survey for transiting exoplanets carried ou…
Hector Galaxy Survey: Linking the low- and high-mass ends of the initial mass function in star-forming galaxies
Diego Salvador, Andrew Hopkins, Matt Owers +30
The stellar initial mass function (IMF) is a fundamental ingredient in galaxy evolution, linking observed integrated light to galaxy properties. Constraining the full IMF shape bey…
Beyond BPT: A New Multi-Dimensional Diagnostic Diagram for Classifying Power Sources Tested Using the SAMI Galaxy Survey
Victor Johnston, Anne Medling, Brent Groves +11
Current methods of identifying the ionizing source of nebular emission in galaxies are well defined for the era of single fiber spectroscopy, but still struggle to differentiate th…
WST, the wide-field spectroscopic telescope: progress on the design of the instruments
David Lee, Joel Vernet, Elizabeth George +47
WST, the Wide-field Spectroscopic Telescope is a proposed new facility that will provide a transformational gain in spectroscopic survey capability over existing facilities. The WS…