D. N. FRIEDEL, L. E. SNYDER, L. W. LOONEY, H. R. DICKEL, University of Illinois, Dept. of Astronomy, 1002 W. Green St, Urbana, IL 61801; ANTHONY J. REMIJAN, NASA Goddard Space Flight Center, Space and Earth Data Computing Division, Code 930, Greenbelt, MD 20771; National Research Council Resident Research Associate; PATRICK PALMER, Department of Astronomy and Astrophysics, University of Chicago, Chicago, IL 60637; IMKE DE PATER, J. R. FORSTER, C. KRAYBILL, M. C. H. WRIGHT, Department of Astronomy, University of California, Berkeley, CA 94720; M. R. HOGERHEIJDE, Leiden Observatory, PO Box 9513, 2300 RA, Leiden, The Netherlands; M. F. A'HEARN, Department of Astronomy, University of Maryland, College Park MD 20742-2421; AND GEOFFREY A. BLAKE, Division of Geological and Planetary Sciences; Division of Chemistry and Chemical Engineering California Institute of Technology 150-21, Pasadena, CA 91125.
We present interferometric detections of HCN in comets LINEAR (C/2002 T7) and NEAT (C/2001 Q4) with the Berkeley-Illinois-Maryland Association (BIMA) Array in D-configuration. We detected the HCN J=1-0 emission line in both comets. With a 25.\!\!'' 4×20.\!\!'' 3 synthesized beam around Comet LINEAR, we found a total beam averaged HCN column density of