Please use this identifier to cite or link to this item:
http://hdl.handle.net/2080/4401
Title: | Study Of Integrated UV Light From The Galactic Globular Clusters (GCs) using UVIT/Astrosat observation |
Authors: | Pradhan, Ananta C. Kumar, Ranjan Piridi, Sonika Ghosh, Surath Chandra Pandey, Divya |
Keywords: | Galactic Globular Clusters (GCs) UVIT/Astrosat |
Issue Date: | Feb-2024 |
Citation: | 42nd meeting of the Astronomical Society of India (ASI), Bangalore, India, 31 Jan to 04 Feb 2024 |
Abstract: | Globular clusters (GCs) consist of old stellar populations and the major contribution of ultraviolet (UV) radiation in GCs comes from the old evolved stars such as BHBs and EHBs. The UV flux distribution in GCs is useful in tracing back their formation history. The integrated UV flux of GCs plays a crucial role in understanding the UV upturn phenomena in the quiescent galaxies. We have studied UV flux distribution of 18 Galactic GCs using AstroSat/UVIT observations. We have compared and analyzed the integrated UV fluxes within the core, half-light, and tidal radii of the selected GCs. We have discussed the fractional contribution to the UV fluxes from various hot-evolved stellar populations present in each of the above regions. Finally, we study the global parameters of the selected GCs using their integrated UV and UV-optical colors. |
Description: | Copyright belongs to proceeding publisher |
URI: | http://hdl.handle.net/2080/4401 |
Appears in Collections: | Conference Papers |
Files in This Item:
File | Description | Size | Format | |
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2024_42ndASI_ACPradhan_Study.pdf | Poster | 666.12 kB | Adobe PDF | View/Open Request a copy |
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