Standardization in the UV with Astrosat and its issues related to star cluster studies
Abstract
The Ultra-Violet Imaging Telescope (UVIT) is one of the payloads in Astrosat, the first Indian Space Observatory. The UVIT instrument has two 375 mm telescopes: one for the far-ultraviolet (FUV) channel (1300-1800 A), and the other for the near-ultraviolet (NUV) channel (2000-3000 A) and the visible (VIS) channel (3200-5500 A). We shall discuss the issues with standardization in the UV with reference to Astrosat Observations (Cycle A04). I shall discuss the problems faced in data-analysis and how these in turn lead to serious issues dealing with the color-magnitude diagarms, membership and age of the young embedded clusters studied.
- Publication:
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arXiv e-prints
- Pub Date:
- October 2018
- DOI:
- 10.48550/arXiv.1810.03187
- arXiv:
- arXiv:1810.03187
- Bibcode:
- 2018arXiv181003187S
- Keywords:
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- Astrophysics - Solar and Stellar Astrophysics;
- Astrophysics - Astrophysics of Galaxies
- E-Print:
- 3 pages, Talk in Calibration and Standardization Issues in UV-VIS-IR Astronomy, to appear in Astronomy in Focus, IAU, GA, 2018