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Browsing IIAP Publications by Subject "Ultraviolet photometry"

Browsing IIAP Publications by Subject "Ultraviolet photometry"

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  • Additional calibration of the ultraviolet imaging telescope on board AstroSat 
    Tandon, S. N; Postma, J; Joseph, P; Devaraj, A; Subramaniam, A; Subramaniam, I. V; George, K; Ghosh, S. K; Girish, V; Hutchings, J. B; Kamath, P. U; Kathiravan, S; Kumar, A; Lancelo, J. P; Leahy, D; Mahesh, P. K; Mohan, R; Nagabhushana, S; Pati, A. K; Kameswara Rao, N; Sankarasubramanian, K; Sriram, S; Stalin, C. S (IOP Publishing, 2020-04)
    Results of the initial calibration of the Ultra-Violet Imaging Telescope (UVIT) were reported earlier by Tandon et al. The results reported earlier were based on the ground calibration as well as the first observations in ...
  • The First Extensive Exploration of UV-bright Stars in the Globular Cluster NGC 2808 
    Deepthi, S. Prabhu; Subramaniam, A; Snehalata Sahu (IOP Publishing, 2021-02-10)
    In this study, we identified and characterized the hot and luminous UV-bright stars in the globular cluster NGC 2808. We combined data from the Ultra Violet Imaging Telescope (UVIT) on board the Indian space satellite AstroSat ...
  • Globular Cluster UVIT Legacy Survey (GlobULeS). III. Omega Centauri in Far-ultraviolet 
    Deepthi, S. Prabhu; Subramaniam, A; Sahu, Snehalata; Chung, Chul; Leigh, Nathan W. C; Dalessandro, Emanuele; Chatterjee, Sourav; Kameswara Rao, N; Shara, Michael; Cote, Patrick; Choudhury, Samyaday; Pandey, G; Valcarce, Aldo A. R; Singh, G; Postma, Joesph E; Sharmila Rani; Bandyopadhyay, Avrajit; Geller, Aaron M; Hutchings, John; Puzia, Thomas; Simunovic, Mirko; Sohn, Young-Jong; Sivarani, T; Yadav, Ramakant Singh (American Astronomical Society, 2022-11-10)
    We present the first comprehensive study of the most massive globular cluster, Omega Centauri, in the farultraviolet (FUV), extending from the center to ∼28% of the tidal radius using the Ultraviolet Imaging Telescope on ...
  • Study of young open clusters as tracers of spiral features in our Galaxy. IV - Czernik 20 (OC1 427) 
    Babu, G. S. D (Indian Academy of Sciences, 1989-09)
    Photoelectric and photographic photometry of 72 stars was done in the field of the not-well-studied open cluster Czernik 20 in the direction of the Auriga constellation. Of these stars, a total of 43 have been found to be ...
  • UOCS-IX. AstroSat/UVIT Study of the Open Cluster NGC 2818: Blue Stragglers, Yellow Stragglers, Planetary Nebula, and their Membership 
    Sharmila Rani; Pandey, G; Subramaniam, A; Kameswara Rao, N (American Astronomical Society, 2023-03-01)
    We present the first far-UV (FUV) imaging results of the intermediate-age Galactic open cluster NGC 2818 that has a planetary nebula (PN) within the field using images taken from the Ultra Violet Imaging Telescope ...
  • UVIT Observations of the Small Magellanic Cloud: Point-source Catalog 
    Devaraj, A; Joseph, P; Stalin, C. S; Tandon, S. N; Ghosh, S. K (American Astronomical Society, 2023-04-01)
    Three fields in the outskirts of the Small Magellanic Cloud were observed by the UltraViolet Imaging Telescope (UVIT) on board AstroSat, between 2017 December 31 and 2018 January 1. The observations were carried out on a ...

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