Neutral hydrogen 21 centimeter absorption at Z = 0.6847 toward the 'smallest Einstein ring'
Authors:
- C. L. CarilliCCC. L. Carilli
- M. P. RupenMRM. P. Rupen
- Brian YannyBYBrian Yanny
- 1 August 1993
- journal article
- Published by American Astronomical Society in The Astrophysical Journal
- Vol. 412, L59-L62