A5056028840- Astronomy and Astrophysical Research
- Astronomical Observations and Instrumentation
- Adaptive optics and wavefront sensing
- Scientific Computing and Data Management
- Distributed and Parallel Computing Systems
- Superconducting and THz Device Technology
- Research Data Management Practices
- Stellar, planetary, and galactic studies
- Gamma-ray bursts and supernovae
- Galaxies: Formation, Evolution, Phenomena
- Big Data and Business Intelligence
- Advanced Data Storage Technologies
- Computational Physics and Python Applications
- Astrophysics and Star Formation Studies
- Medical Imaging Techniques and Applications
- Astrophysics and Cosmic Phenomena
- Scientific Research and Philosophical Inquiry
- Fault Detection and Control Systems
- Environmental Monitoring and Data Management
- Cloud Computing and Resource Management
- Computer Graphics and Visualization Techniques
- Calibration and Measurement Techniques
- Semantic Web and Ontologies
- Advanced Database Systems and Queries
- Advanced Optical Sensing Technologies
Vera C. Rubin Observatory
2022
Large Synoptic Survey Telescope Corporation
2014-2019
University of Hawaii at Hilo
1999-2014
Joint Institute for Nuclear Astrophysics
1998-2014
Optica
2014
Joint Research Centre
2010
Queen's University Belfast
2006
Queen Mary University of London
1995-2003
(Abridged) We describe here the most ambitious survey currently planned in optical, Large Synoptic Survey Telescope (LSST). A vast array of science will be enabled by a single wide-deep-fast sky survey, and LSST have unique capability faint time domain. The design is driven four main themes: probing dark energy matter, taking an inventory Solar System, exploring transient optical sky, mapping Milky Way. wide-field ground-based system sited at Cerro Pach\'{o}n northern Chile. telescope 8.4 m...
SCUBA-2 is an innovative 10000 pixel bolometer camera operating at submillimetre wavelengths on the James Clerk Maxwell Telescope (JCMT). The has capability to carry out wide-field surveys unprecedented depths, addressing key questions relating origins of galaxies, stars and planets. With two imaging arrays working simultaneously in atmospheric windows 450 850 microns, vast increase count means that maps sky 100-150 times faster than previous SCUBA instrument. In this paper we present...
The Submillimetre Common User Bolometer Array 2 (SCUBA-2) is an instrument operating on the 15-m James Clerk Maxwell Telescope, nominally consisting of 5120 bolometers in each two simultaneous imaging bands centred over 450 and 850 um. camera operated by scanning across sky recording data at a rate 200 Hz. As largest new generation multiplexed kilopixel bolometer cameras (sub)millimetre, SCUBA-2 analysis represents significant challenge. We describe production maps using Sub-Millimetre...
The Large Synoptic Survey Telescope (LSST) is a large-aperture, wide-field, ground-based survey system that will image the sky in six optical bands from 320 to 1050 nm, uniformly covering approximately $18,000$deg$^2$ of over 800 times. LSST currently under construction on Cerro Pachón Chile, and expected enter operations 2022. Once operational, explore wide range astrophysical questions, discovering "killer" asteroids examining nature Dark Energy. generate average 15 TB data per night,...
We report the results of J-band infrared spectroscopy a sample 13 z=1 field galaxies drawn from Canada-France Redshift Survey, targeting with redshifts that place rest-frame Hα line emission H ii regions in between bright night sky OH lines. As result we detect down to flux limit ≃ 10−16 erg cm−2 s−1, corresponding luminosity 1041 at this redshift for an H0=50 km s−1 Mpc−1, q0=0.5 cosmology. From these luminosities derive estimates star formation rates are independent previous based upon...
SCUBA-2 is an innovative 10,000 pixel submillimeter camera due to be delivered the James Clerk Maxwell Telescope in late 2006. The expected revolutionize astronomy terms of ability carry out wide-field surveys unprecedented depths addressing key questions relating origins galaxies, stars and planets. This paper presents update on project with particular emphasis laboratory commissioning instrument. assembly integration will described as well measured thermal performance A summary results...
We present early-time infrared (IR) and optical spectroscopy, photometry, of the Type la supernova 1994D. These observations provide most complete optical-IR spectral coverage ever achieved for a at this phase. Optical IR spectra were obtained as early 9 d before maximum light. The combined SN 1994D reveal flux 'deficit' in R, I j bands They also illustrate dramatic deepening j-band deficit after light spectrum peculiar 1991T. This shows band, but it does not show such pronounced R
The Submillimetre Common User Bolometer Array (SCUBA) instrument has been operating on the James Clerk Maxwell Telescope (JCMT) since 1997. data archive is now sufficiently large that it can be used to investigate instrumental properties and variability of astronomical sources. This paper describes automated calibration reduction scheme process data, with particular emphasis ‘jiggle-map’ observations compact We demonstrate validity our approach at both 850 450 μm, apply several JCMT...
Abstract The ORAC‐DR data reduction pipeline has been used by the Joint Astronomy Centre since 1998. Originally developed for an infrared spectrometer and a submillimetre bolometer array, it expanded to support twenty instruments from nine different telescopes. By using shared code common infrastructure, rapid development of automated nearly any astronomical is possible. This paper discusses infrastructure available developers estimates timescales expected reduce new ORAC‐DR. (© 2008...
The NOAO Data Lab will allow users to efficiently utilize catalogs of billions objects, augment traditional telescope imaging and spectral data with external archive holdings, publish high level products their research, share custom results collaborators experiment analysis toolkits. goal the is provide a common framework workspace for science collaborations individuals use disseminate from large surveys. In this paper we describe motivations behind present conceptual overview activities...
ORAC-DR is a general purpose data reduction pipeline system designed to be instrument and observatory agnostic. The works with instruments as varied infrared integral field units, imaging arrays spectrographs, sub-millimeter heterodyne & continuum cameras. This paper describes the architecture of implementation core infrastructure. We finish by discussing lessons learned since initial deployment in late 1990s.
We look for the expected signature of an accretion disc by examining properties Hα emission line versus viewing angle in a sample 22 superluminal (SL) quasars. The Doppler factor δ, jet velocity γ and θ towards are derived from published radio X-ray data. Most spectra (14) have been observed at United Kingdom Infrared Telescope (UKIRT) reported here. About quarter SL objects weak or absent lines, with small equivalent widths (EW). These high optical polarization, core dominance factor, most...
We have carried out a pilot study for the Submillimetre Common-User Bolometer Array 2 (SCUBA-2) 'All-Sky' Survey (SASSy), wide and shallow mapping project at 850 μm, designed to find rare objects, both Galactic extragalactic. Two distinct sets of exploratory observations were undertaken used test SASSy approach data-reduction pipeline. The first was 0°.5 × map around nearby galaxy NGC 2559. easily detected 156 mJy, but no other convincing sources are present in map. Comparison with galaxies...
DevOps is the contemporary term for a software development culture that purposefully blurs distinction between and IT operations by treating "infrastructure as code." teams typically implement practices summarised colloquial directive to "eat your own dogfood;" meaning tools developed team should be used internally rather thrown over fence or users. We present brief overview of how techniques bring proven engineering operations. then discuss application these astronomical observatories.
The JCMT Science Archive is a collaboration between the James Clerk Maxwell Telescope and Canadian Astronomy Data Centre to provide access raw reduced data from SCUBA-2 telescope's heterodyne instruments. It was designed include range of advanced products, created either by external groups, such as Legacy Survey teams, or staff at Joint Centre. We are currently developing archive set products which combine all publicly available data. have developed sky tiling scheme based on HEALPix tiles...
We present the result of near-infrared spectroscopic observations on radio galaxy 3C 22 (z=0.937). Contrary to previous classification this object as a narrow-line galaxy, we report clear presence broad Hα line, showing directly that at least some powerful galaxies are simply reddened quasars.
The Large Synoptic Survey Telescope (LSST) is an 8.4m optical survey telescope being constructed on Cerro Pach´on in Chile. data management system developed must be able to process the nightly alert data, 20,000 expected transient alerts per minute, near real time, and construct annual releases at petabyte scale. development team consists of more than 90 people working six different sites across US developing integrated set software realize LSST science goals. In this paper we discuss our...