Browsing by Author "Ambika, S"

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Chemical Composition of Selected Metal Poor Stars

Ambika, S (Indian Institute of Astrophysics, Bangalore, 2004-07)
Chemical composition of UV-bright star ZNG 4 in the globular cluster M 13

Ambika, S; Parthasarathy, M; Aoki, W; Fujii, T; Nakada, Y; Ita, Y; Izumiura, H (EDP Sciences, 2004-04)

We present a detailed model-atmosphere analysis of ZNG 4, a UV-bright star in the globular cluster M 13. From the analysis of a high resolution ( R ≈ 45 000 ) spectrum of the object, we derive the atmospheric parameters ...
Optical photometry of the GRB 010222 afterglow

Cowsik, R; Prabhu, T. P; Anupama, G. C; Bhatt, B. C; Sahu, D. K; Ambika, S; Padmakar; Bhargavi, S. G (Astronomical Society of India, 2001)

The optical afterglow of GRB 010222 was observed using the recently installed 2-m telescope at the Indian Astronomical Observatory, Hanle, and the telescopes at the Vainu Bappu Observatory, Kavalur, beginning ~ 0.6 day ...

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