In-orbit Performance of UVIT and First Results

被引:75
|
作者
Tandon, S. N. [1 ,2 ]
Hutchings, J. B. [3 ]
Ghosh, S. K. [4 ,5 ]
Subramaniam, A. [2 ]
Koshy, G. [2 ]
Girish, V. [6 ]
Kamath, P. U. [2 ]
Kathiravan, S. [2 ]
Kumar, A. [2 ]
Lancelot, J. P. [2 ]
Mahesh, P. K. [2 ]
Mohan, R. [2 ]
Murthy, J. [2 ]
Nagabhushana, S. [2 ]
Pati, A. K. [2 ]
Postma, J. [7 ]
Rao, N. Kameswara [2 ]
Sankarasubramanian, K. [6 ]
Sreekumar, P. [2 ]
Sriram, S. [2 ]
Stalin, C. S. [2 ]
Sutaria, F. [2 ]
Sreedhar, Y. H. [2 ]
Barve, I. V. [2 ]
Mondal, C. [2 ]
Sahu, S. [2 ]
机构
[1] Inter Univ Ctr Astron & Astrophys, Pune 411007, Maharashtra, India
[2] Indian Inst Astrophys, Bengaluru 560034, India
[3] Herzberg Inst Astrophys, 5071 West Saanich Rd, Victoria, BC V9E 2E7, Canada
[4] Natl Ctr Radio Astrophys, Pune 411007, Maharashtra, India
[5] Tata Inst Fundamental Res, Bombay 400005, Maharashtra, India
[6] ISRO, Satellite Ctr, Bengaluru 560017, India
[7] Univ Calgary, Dept Phys & Astron, Calgary, AB, Canada
基金
英国自然环境研究理事会; 英国经济与社会研究理事会; 中国国家自然科学基金;
关键词
Ultraviolet astronomy; space astronomy; ultraviolet telescopes; ultraviolet detectors; payloads on AstroSat; PHOTON-COUNTING DETECTORS; IMAGING TELESCOPE UVIT; WIYN OPEN CLUSTER; NGC; 188; CALIBRATION; EVOLUTION;
D O I
10.1007/s12036-017-9445-x
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
The performance of the ultraviolet telescope (UVIT) on-board AstroSat is reported. The performance in orbit is also compared with estimates made from the calibrations done on the ground. The sensitivity is found to be within similar to 15% of the estimates, and the spatial resolution in the NUV is found to exceed significantly the design value of 1.8 '' and it is marginally better in the FUV. Images obtained from UVIT are presented to illustrate the details revealed by the high spatial resolution. The potential of multi-band observations in the ultraviolet with high spatial resolution is illustrated by some results.
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页数:14
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