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Using Gravitational Lenses to Probe HI at High z

Published online by Cambridge University Press:  26 May 2016

T.D. Saini ,
S.K. Sethi  and
S. Bharadwaj
T.D. Saini
Affiliation:
I.U.C.A.A., Post Bag 4, Ganeshkhind, Pune 411007, India
S.K. Sethi
Affiliation:
Mehta Research Institute, Chhatnag Road, Jhusi, Allahabad 211019, India
S. Bharadwaj
Affiliation:
Department of Physics & Center for Theoretical Studies, I.I.T. Kharagpur, 721302, India

Abstract

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We investigate the possibility of detecting damped Lyman-α systems at high redshifts using GMRT if these clouds are magnified by intervening cluster lenses. We show that if the HI mass of the damped clouds ≥ 2 × 1010 M⊙ then they can be detected with a probability ≥ 0.2 using GMRT.

Type
Part 2: Extra Galactic Neutral Hydrogen and Cosmology
Information
Symposium - International Astronomical Union , Volume 199: The Universe at Low Radio Frequencies , 2002 , pp. 114 - 115
Copyright
Copyright © Astronomical Society of the Pacific 2002 

References

Lanzetta, K. M., Wolfe, A. M., Turnshek, D. A. 1995, ApJ, 430, 435 Google Scholar
Schneider, P., Ehlers, J., Falco, E. E., 1992, Gravitational Lenses , Springer-Verlag Google Scholar