15min:

ANTHONY J. REMIJAN, NRAO, 520 Edgemont Road, Charlottesville, VA 22901; J. M. HOLLIS, NASA Goddard Space Flight Center, Computational and Information Sciences and Technology Office, Code 606, Greenbelt, MD 20771; F. J. LOVAS, Optical Technology Division, National Institute of Standards and Technology, Gaithersburg, MD 20899; P. R. JEWELL, NRAO, 520 Edgemont Road, Charlottesville, VA 22901; L. E. SNYDER, Department of Astronomy, University of Illinois, 1002 W. Green Street, Urbana, IL 61801.

Over the last several years, the NRAO 100-m Green Bank Telescope (GBT) has been the primary instrument in the search for many new, large interstellar molecular species. Included in the list of new molecules detected with the GBT are propenal (CH₂CHCHO) and propanal (CH₃CH₂CHO) toward SgrB2N and methylcyanodiacetylene (CH₃C₅N) toward TMC-1. This year, we report the detection of three new interstellar molecules: cyclopropenone (c-H₂C₃O) toward SgrB2N, and cyanoallene (CH₂CCHCN) and methyltriacetylene (CH₃C₆H) toward TMC-1. Furthermore, we present possible pathways for the formation of each molecule relevant to the astronomical environment where each species was detected.