Physics
Scientific paper
May 1969
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1969phrv..181.2145s&link_type=abstract
Physical Review, vol. 181, Issue 5, pp. 2145-2146
Physics
4
Scientific paper
In this paper we bring out several points in connection with the recent paper by Huang and Edwards. First, extraterrestial spectroscopic searches for quarks have been carried out since 1966 by several groups. Secondly, because of the crudeness of the available data, the criteria used for the identifications were not sufficient and thus it should be stressed that the assignments are quite tentative. Thirdly, order-of-magnitude estimates of relative abundances of the quarked species were not made, based on the identifications. Finally, several of the transition lines identified as λQ1 or λQ2 should have had related normal species λQ0 in the visible region, yet the related λQ0's were not present except in one case.
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