| Autor: |
Sharma, Saurabh, Ojha, Devendra K., Ghosh, Arpan, Ninan, Joe P., Ghosh, Supriyo, Ghosh, Swarna K., Manoj, P., Naik, Milind B., D-™Costa, Savio L. A., Krishna Reddy, B., Nanjappa, Nandish, Pandey, Rakesh, Sinha, Tirthendu, Panwar, Neelam, Antony, Susmitha, Kaur, Harmeen, Sahu, Sanjit, Bangia, Tarun, Poojary, Satheesha S., Jadhav, Rajesh B. |
| Předmět: |
|
| Zdroj: |
Publications of the Astronomical Society of the Pacific; Aug2022, Vol. 134 Issue 1038, p1-23, 23p |
| Abstrakt: |
We present the design and performance of the TANSPEC, a medium-resolution 0.55â€"2.5 ÎĽ m cryogenic spectrometer and imager, now in operation at the 3.6 m Devasthal Optical Telescope (DOT), Nainital, India. The TANSPEC provides three modes of operation, which include photometry with broad- and narrowband filters, spectroscopy with short slits of 20″ length and different widths (from 0.″5 to 4.″0) in cross-dispersed mode at a resolving power R of âĽ2750, and spectroscopy with long slits of 60″ length and different widths (from 0.″5 to 4.″0) in prism mode at a resolving power R of âĽ100â€"350. TANSPEC’s imager mode provides a field of view of 60″ Ă— 60″ with a plate scale of 0.″245 pixelâ'1 on the 3.6 m DOT. The TANSPEC was successfully commissioned during 2019 Aprilâ€"May, and the subsequent characterization and astronomical observations are presented here. The TANSPEC was made available to the worldwide astronomical community for science observations from 2020 October. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
|
