In-orbit performance of UVIT and first results

Tandon, S. N.; Hutchings, J. B.; Ghosh, S. K.; Subramaniam, A.; Koshy, G.; Girish, V.; Kamath, P. U.; Kathiravan, S.; Kumar, A.; Lancelot, J. P.; Mahesh, P. K.; Mohan, R.; Murthy, J.; Nagabhushana, S.; Pati, A. K.; Postma, J.; Rao, N. Kameswara; Sankarasubramanian, K.; Sreekumar, P.; Sriram, S.; Stalin, C. S.; Sutaria, F.; Sreedhar, Y. H.; Barve, I. V.; Mondal, C.; Sahu, S.

oai:cisti-icist.nrc-cnrc.ca:cistinparc:23003116

In-orbit performance of UVIT and first results

Authors: 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
Publication date: 19 June 2017
Publisher: 'Springer Science and Business Media LLC'
Doi

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 3c15% of the estimates, and the spatial resolution in the NUV is found to exceed significantly the design value of 1.8\u2032\u2032 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.Peer reviewed: YesNRC publication: Ye

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