ISSN:
1476-4687
Source:
Nature Archives 1869 - 2009
Topics:
Biology
,
Chemistry and Pharmacology
,
Medicine
,
Natural Sciences in General
,
Physics
Notes:
[Auszug] Observations with the 1,000 foot antenna at the Arecibo Ionospheric Observatory have revealed the periodicity of one of these sources, NP 0532. The heliocentric period determined from data taken on November 15, 1968, is (33.09112 0.00003) ms. Measurements at Arecibo have greatly improved the ...
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1038/221453a0
Permalink