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We present the first interferometric evidence of CO(1-0) emission in theintragroup starburst (IGS) region of HCG~92 (Stephan's Quintet). BIMA's largeprimary beam covers fully both the IGS region and the dominant group membergalaxy Seyfert NGC 7319, as well as partially the intruder galaxy NGC 7318B. COemission of $\approxgt 4\sigma$ is detected in all of them. The detection ofthe CO emission associated with the IGS is further supported by comparisonswith observations in other wavebands (e.g., HI, mid-IR, \ha). Assuming thestandard conversion factor, 3.6--8.0$\times 10^8~\Msun$ molecular gas is foundto be associated with the IGS. Confining to the region of the CO emission peak,a relatively high star-formation efficiency of 8.6$\Lsun/\Msun$ is derived forthe IGS, which is nearly comparable to that of local starburst galaxies (e.g.,M82).Comment: ApJ letters, in press (one figure, but really 3 color figures plus  one b/w figure

CO in Stephan’s Quintet: First Evidence of Molecular Gas in the Intragroup Starburst