Probing galaxy evolution through HI 21-cm emission and absorption: current status and prospects with square kilometre array

Please use this identifier to cite or link to this item: http://hdl.handle.net/2248/8286

Title:	Probing galaxy evolution through HI 21-cm emission and absorption: current status and prospects with square kilometre array
Authors:	Dutta, Rajeshwari Kurapati, Sushma Aditya, J. N. H. S. Bait, Omkar Mousumi Das Dutta, Prasun Indulekha, K Nandakumar, Meera Patra, Narendra Nath Roy, Nirupam Roychowdhury, Sambit
Keywords:	Galaxies: evolution Galaxies: ISM Radio lines: galaxies
Issue Date:	Dec-2022
Publisher:	Indian Academy of Sciences
Citation:	Journal of Astrophysics and Astronomy, Vol. 43, No. 2, 103
Abstract:	One of the major science goals of square kilometre array (SKA) is to understand the role played by atomic hydrogen (HI) gas in the evolution of galaxies throughout cosmic time. The hyperfine transition line of the hydrogen atom at 21-cm is one of the best tools to detect and study the properties of HI gas associated with galaxies. In this paper, we review our current understanding of HI gas and its relationship with galaxies through observations of the 21-cm line both in emission and absorption. In addition, we provide an overview of the HI science that will be possible with SKA and its precursors and pathfinders, i.e., HI 21-cm emission and absorption studies of galaxies from nearby to high redshifts that will trace various processes governing galaxy evolution.
Description:	Restricted Access The original publication is available at springerlink.com
URI:	http://hdl.handle.net/2248/8286
ISSN:	0973-7758
Appears in Collections:	IIAP Publications

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