The Stellar parametrization using Artificial Neural Network

Details The Stellar parametrization using Artificial Neural Network The Stellar parametrization using Artificial Neural Network

2012-03-09

arxiv.org/abs/1203.2014v1

Astronomy and Astrophysics

Astrophysics

Solar and Stellar Astrophysics

6 pages, 2 figures, To appear in Astronomical Society of India Conference Series (ASICS). eds. P. Prugniel and H.P Singh

Scientific paper

An update on recent methods for automated stellar parametrization is given. We present preliminary results of the ongoing program for rapid parametrization of field stars using medium resolution spectra obtained using Vainu Bappu Telescope at VBO, Kavalur, India. We have used Artificial Neural Network for estimating temperature, gravity, metallicity and absolute magnitude of the field stars. The network for each parameter is trained independently using a large number of calibrating stars. The trained network is used for estimating atmospheric parameters of unexplored field stars.

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