High angular resolution mm- and submm-observations of dense molecular gas in M82

Details High angular resolution mm- and submm-observations of dense molecular gas in M82 High angular resolution mm- and submm-observations of dense molecular gas in M82

Jul 1990

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990nascp3084..368w&link_type=abstract

In NASA, Ames Research Center, The Interstellar Medium in External Galaxies: Summaries of Contributed Papers p 368-370 (SEE N91-

Astronomy and Astrophysics

Astronomy

Angular Resolution, Gas Density, High Resolution, Infrared Telescopes, Millimeter Waves, Molecular Clouds, Molecular Gases, Radio Astronomy, Heterodyning, Radio Receivers, Spectra

Scientific paper

Researchers observed CO(7-6), CO(3-2), HCN(3-2) and HCO+(3-2) line emission toward the starburst nucleus of M82 and have obtained an upper limit to H13CN(3-2). These are the first observations of the CO(7-6), HCN(3-2) and HCO+(3-2) lines in any extragalactic source. Researchers took the CO(7-6) spectrum in January 1988 at the Infrared Telescope Facility (IRTF) with the Max Planck Institute for Extraterrestrial Physics/Univ. of California, Berkeley 800 GHz Heterodyne Receiver. In March 1989 researchers used the Institute for Radio Astronomy in the Millimeter range (IRAM) 30 m telescope to observe the CO(3-2) line with the new MPE 350 GHz Superconductor Insulator Superconductor (SIS) receiver and the HCN(3-2) and HCO+(3-2) lines with the (IRAM) 230 GHz SIS receiver (beam 12" FWHM, Blundell et al. 1988). The observational parameters are summarized.

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