CO J = 3-2 and J = 2-1 mapping and spectroscopy of NGC 7027

Details CO J = 3-2 and J = 2-1 mapping and spectroscopy of NGC 7027 CO J = 3-2 and J = 2-1 mapping and spectroscopy of NGC 7027

Oct 1985

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1985a%26a...151..421p&link_type=abstract

Astronomy and Astrophysics (ISSN 0004-6361), vol. 151, no. 2, Oct. 1985, p. 421-426. SERC-supported research.

Astronomy and Astrophysics

Astrophysics

9

Astronomical Maps, Astronomical Spectroscopy, Carbon Monoxide, Line Spectra, Planetary Nebulae, Astronomical Models, Spatial Distribution, Velocity Distribution

Scientific paper

In the present mapping of the planetary nebula NGC 7072 in the J = 3-2 and J = 2-1 transitions of CO, the latter's spectral profile appears to be very similar to that previously measured at J = 1-0 and suggests a possible constant velocity outflow. The J = 3-2 line is, however, very different, with a significantly different width and shape. A detailed modeling of the profiles is attempted using power law expressions for the radial density and temperature variations; the results obtained are found to be in reasonable accord with observed antenna temperatures.

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