Accession Number : AD0756464

Title :   Radio and Optical Activity of the Peculiar Object BL Lac (VRO 42.22.01) and 3.3-mm Observations of Cygnus X-3.

Descriptive Note : Rept. for Feb 68-Jul 72,

Corporate Author : AEROSPACE CORP EL SEGUNDO CALIF LAB OPERATIONS

Personal Author(s) : Epstein,Eugene E. ; Pomphrey,Richard B. ; Hackney,Richard L. ; Hackney,Karen R. ; Smith,Alex G.

Report Date : 15 JAN 1973

Pagination or Media Count : 21

Abstract : In late 1971, BL Lac underwent an isolated optical flare of a type previously observed in optically violent (OVV) quasars. Although this event was followed in 55 days by a similar radio flare, an examination of all available data indicates that the observations cannot be correlated by the assumption of a constant radio-optical delay. The 3-mm measurements of the giant radio outburst of Cygnus X-3 during early September 1972 are presented. (Author)

Descriptors :   (*EXTRATERRESTRIAL RADIO WAVES, ASTRONOMY), OPTICAL PROPERTIES, MILLIMETER WAVES, POWER SPECTRA

Subject Categories : Astrophysics

Distribution Statement : APPROVED FOR PUBLIC RELEASE