HI 21-cm absorption spectroscopy provides a unique probe of the cold neutral gas in normal and active galaxies from redshift z > 6 to the present day. We describe the status of HI absorption studies, the plans for pathfinders/precursors, the expected breakthroughs that will be possible with SKA1, and some limitations set by the current design.
from astro-ph updates on arXiv.org http://ift.tt/1DhLU2a
via IFTTT
No comments:
Post a Comment