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
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.
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
Volume 41, 2020
Continuous Article Publishing mode
Since January 2016, the Journal of Astrophysics and Astronomy has moved to Continuous Article Publishing (CAP) mode. This means that each accepted article is being published immediately online with DOI and article citation ID with starting page number 1. Articles are also visible in Web of Science immediately. All these have helped shorten the publication time and have improved the visibility of the articles.
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