Herschel SPIRE Spectroscopy Of M82: Observations And Modeling Of The CO Ladder

Details Herschel SPIRE Spectroscopy Of M82: Observations And Modeling Of The CO Ladder Herschel SPIRE Spectroscopy Of M82: Observations And Modeling Of The CO Ladder

May 2010

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010aas...21641203r&link_type=abstract

American Astronomical Society, AAS Meeting #216, #412.03; Bulletin of the American Astronomical Society, Vol. 41, p.821

Astronomy and Astrophysics

Astronomy

Scientific paper

Nearby starburst galaxies are great laboratories to study star formation and its effect on the interstellar medium in extreme environments. We will present Science Demonstration Phase spectroscopic observations of the central region of the starburst galaxy M82, measured using the Spectral and Photometric Imaging Receiver (SPIRE) on the Herschel Space Observatory. The spectrum extends from 190 to 670 microns, showing a prominent CO emission line ladder from J = 4 - 3 to J = 13 - 12, along with emission lines from neutral carbon and ionized nitrogen and a strong continuum. Radiative transfer modeling of these high-S/N 12CO and 13CO emission lines provide strong constraints on the physical state of the molecular gas in M82.

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