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In-orbit Performance of UVIT and First Results
S. N. Tandon J. B. Hutchings S. K. Ghosh A. Subramaniam G. Koshy V. Girish P. U. Kamath S. Kathiravan A. Kumar J. P. Lancelot P. K. Mahesh R. Mohan J. Murthy S. Nagabhushana A. K. Pati J. Postma N. Kameswara Rao K. Sankarasubramanian P. Sreekumar S. Sriram C. S. Stalin F. Sutaria Y. H. Sreedhar I. V. Barve C. Mondal S. Sahu
Review Article Volume 38 Issue 2 June 2017 Article ID 0028
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https://www.ias.ac.in/article/fulltext/joaa/038/02/0028 -
Keywords
Ultraviolet astronomy ;space astronomy ;ultraviolet telescopes ;ultraviolet detectors ;payloads on AstroSat. -
Abstract
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 ∼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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Author Affiliations
S. N. Tandon1 2 J. B. Hutchings3 S. K. Ghosh4 5 A. Subramaniam2 G. Koshy2 V. Girish6 P. U. Kamath2 S. Kathiravan2 A. Kumar2 J. P. Lancelot2 P. K. Mahesh2 R. Mohan2 J. Murthy2 S. Nagabhushana2 A. K. Pati2 J. Postma7 N. Kameswara Rao2 K. Sankarasubramanian6 P. Sreekumar2 S. Sriram2 C. S. Stalin2 F. Sutaria2 Y. H. Sreedhar2 I. V. Barve2 C. Mondal2 S. Sahu2
- Inter University Centre for Astronomy and Astrophysics, Ganeshkhind, Pune 411 007, India.
- Indian Institute of Astrophysics, Bengaluru 560 034, India.
- Herzberg Institute of Astrophysics, 5071 West Saanich Rd., Victoria, BC V9E 2E7, Canada.
- National Centre for Radio Astrophysics, Ganeshkhind, Pune 411 007, India.
- Tata Institute of Fundametal Research, Colaba, Mumbai 400 005, India.
- ISRO Satellite Centre, Bengaluru 560 017, India.
- Department of Physics and Astronomy, University of Calgary, Calgary, AB, Canada.
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Dates
- Published
- 15 June 2017
- Manuscript received
- 20 September 2016
- Accepted
- 30 November 2016
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Journal of Astrophysics and Astronomy
Volume 44, 2023
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