The internal kinematics of the planetary nebula NGC 650/1

Details The internal kinematics of the planetary nebula NGC 650/1 The internal kinematics of the planetary nebula NGC 650/1

Nov 1979

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1979mnras.189..511t&link_type=abstract

Monthly Notices of the Royal Astronomical Society, vol. 189, Nov. 1979, p. 511-517.

Astronomy and Astrophysics

Astronomy

17

Emission Spectra, H Alpha Line, Kinematics, Planetary Nebulae, Astronomical Models, Forbidden Transitions, Ionized Gases, Nitrogen Ions, Radial Velocity

Scientific paper

H-alpha and forbidden N II 6584-A line profiles from the bright lobes of the planetary nebula NGC 650/1 have been obtained. These emission lines show a very strong symmetrical triple-peak velocity structure, not observed previously to the author's knowledge in planetary nebulae. Models are tentatively proposed to explain both the velocity data and the nebula's optical appearance. The velocity splitting amounts to approximately 62 km/s, and the rest frame of the nebula is found to have a heliocentric radial velocity of -19 + or - 2 km/s.

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