A Census of the High-density Molecular Gas in M82

• Published in: The Astrophysical journal Vol. 722; no. 1; pp. 668 - 681
• Main Authors: Naylor, B. J, Bradford, C. M, Aguirre, J. E, Bock, J. J, Earle, L, Glenn, J, Inami, H, Kamenetzky, J, Maloney, P. R, Matsuhara, H, Nguyen, H. T, Zmuidzinas, J
• Format: Journal Article
• Language: English
• Published: Bristol IOP Publishing 10.10.2010; IOP
• Subjects: ABUNDANCE; Astronomy; ASTROPHYSICS, COSMOLOGY AND ASTRONOMY; BINARY STARS; COSMIC RADIATION; Earth, ocean, space; ELECTROMAGNETIC RADIATION; ERUPTIVE VARIABLE STARS; EVEN-EVEN NUCLEI; Exact sciences and technology; GALAXIES; HYDROCYANIC ACID; HYDROGEN COMPOUNDS; INORGANIC ACIDS; INORGANIC COMPOUNDS; IONIZING RADIATIONS; ISOTOPES; LIGHT NUCLEI; MILKY WAY; NUCLEI; RADIATIONS; STABLE ISOTOPES; STAR CLUSTERS; STARS; SULFUR 34; SULFUR ISOTOPES; SUPERNOVAE; ULTRAVIOLET RADIATION; VARIABLE STARS; galaxies: starburst; Supernovae; High density; Starburst galaxies; Molecular gas; Cosmic radiation; Massive stars; galaxies: ISM; techniques: spectroscopic; Initial mass function; galaxies: abundances; Intensity; Stellar formation region; galaxies: individual (M82); Abundance; instrumentation: spectrographs; Star clusters; Milky Way; Hydrogen cyanides; Upper bound; Ultraviolet irradiation; Low-mass stars; Stellar population; Dense gas; Interstellar matter

We present a three-pointing study of the molecular gas in the starburst nucleus of M82 based on 190-307 GHz spectra obtained with Z-Spec at the Caltech Submillimeter Observatory. We present intensity measurements, detections, and upper limits, for 20 transitions, including several new detections of...