First light observations with TIFR Near Infrared Imaging Camera (TIRCAM-II)

D. K. Ojha1, S. K. Ghosh1, S. L. A. D'Costa1, M. B. Naik1, P. R. Sandimani1, S. S. Poojary1, S. B. Bhagat1, R. B. Jadhav1, G. S. Meshram1, C. B. Bakalkar1, A. N. Ramaprakash2, V. Mohan2 and J. Joshi1
1Tata Institute of Fundamental Research, Homi Bhabha Road, Colaba, Mumbai 400 005, India
2Inter-University Centre for Astronomy and Astrophysics, Post Bag 4, Ganeshkhind, Pune 411 007, India


TIFR near infrared imaging camera (TIRCAM-II) is based on the Aladdin III Quadrant InSb focal plane array (512&time;s$512 pixels; 27.6 μm pixel size; sensitive between 1 - 5.5 μm). TIRCAM-II had its first engineering run with the 2 m IUCAA telescope at Girawali during February - March 2011. The first light observations with TIRCAM-II were quite successful. Several infrared standard stars, the Trapezium Cluster in Orion region, McNeil's nebula, etc., were observed in the $J$, $K$ and in a narrow-band at 3.6 μm (nbL). In the $nbL$ band, some bright stars could be detected from the Girawali site. The performance of TIRCAM-II is discussed in the light of preliminary observations in near infrared bands.

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Keywords : instrumentation: detectors -- instrumentation: photometers