ULTRASPEC: a high-speed imaging photometer on the 2.4-m Thai National Telescope

被引:57
|
作者
Dhillon, V. S. [1 ]
Marsh, T. R. [2 ]
Atkinson, D. C. [3 ]
Bezawada, N. [3 ]
Bours, M. C. P. [2 ]
Copperwheat, C. M. [4 ]
Gamble, T. [1 ]
Hardy, L. K. [1 ]
Hickman, R. D. H. [2 ]
Irawati, P. [5 ]
Ives, D. J. [6 ]
Kerry, P. [1 ]
Leckngam, A. [5 ]
Littlefair, S. P. [1 ]
McLay, S. A. [6 ]
O'Brien, K. [7 ]
Peacocke, P. T. [8 ]
Poshyachinda, S. [5 ]
Richichi, A. [5 ]
Soonthornthum, B. [5 ]
Vick, A. [3 ]
机构
[1] Univ Sheffield, Dept Phys & Astron, Sheffield S3 7RH, S Yorkshire, England
[2] Univ Warwick, Dept Phys, Coventry CV4 7AL, W Midlands, England
[3] Royal Observ Edinburgh, UK Astron Technol Ctr, Edinburgh EH9 3HJ, Midlothian, Scotland
[4] Liverpool John Moores Univ, Astrophys Res Inst, Liverpool L3 5RF, Merseyside, England
[5] Natl Astron Res Inst Thailand, Chiang Mai 50200, Thailand
[6] European So Observ, D-85748 Garching, Germany
[7] Univ Oxford, Dept Phys, Oxford OX1 3RH, England
[8] Lyncaeus Ltd, Barnard Castle DL12 8JD, County Durham, England
关键词
instrumentation: detectors; instrumentation: photometers; techniques: photometric; NN SERPENTIS; LA-PALMA; SYSTEM; DWARF; SPECTROSCOPY; OCCULTATION; ULTRACAM; BINARY; MASS; SKY;
D O I
10.1093/mnras/stu1660
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
ULTRASPEC is a high-speed imaging photometer mounted permanently at one of the Nasmyth focii of the 2.4-m Thai National Telescope (TNT) on Doi Inthanon, Thailand's highest mountain. ULTRASPEC employs a 1024 x 1024 pixel frame-transfer, electron-multiplying CCD (EMCCD) in conjunction with re-imaging optics to image a field of 7.7 x 7.7 arcmin(2) at (windowed) frame rates of up to similar to 200 Hz. The EMCCD has two outputs - a normal output that provides a readout noise of 2.3 e(-) and an avalanche output that can provide essentially zero readout noise. A six-position filter wheel enables narrow-band and broad-band imaging over the wavelength range 330-1000 nm. The instrument saw first light on the TNT in 2013 November and will be used to study rapid variability in the Universe. In this paper we describe the scientific motivation behind ULTRASPEC, present an outline of its design and report on its measured performance on the TNT.
引用
收藏
页码:3504 / 3516
页数:13
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