Abstract
It is shown that the lifetime of the hyperfine level giving rise to the 21 cm hydrogen line might be affected by the so-called Zeno effect, and hence that the amount of neutral hydrogen in our galaxy may be larger than previously deduced.
Original language | English |
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Pages (from-to) | 781-787 |
Number of pages | 7 |
Journal | EPL |
Volume | 3 |
Issue number | 7 |
DOIs | |
State | Published - 1 Apr 1987 |
Externally published | Yes |