Statistics – Computation
Scientific paper
Apr 1988
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1988apj...327..651m&link_type=abstract
Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 327, April 15, 1988, p. 651-663.
Statistics
Computation
116
Centimeter Waves, H I Regions, Kinematics, Magellanic Clouds, Planetary Nebulae, Radio Sources (Astronomy), Computational Astrophysics, Galactic Mass, Radial Velocity, Solar Neighborhood, Stellar Rotation
Scientific paper
The radial velocities of a total of 94 PN in the LMC have been determined. This kinematics of the population of PN is compared with the H I data in the context of a reanalysis of the survey by Rohlfs et al. (1984), taking into account the transverse velocity of the LMC. It is found that the best solution for this transverse velocity is 275 + or - 65 km/s and that the LMC is near perigalacticon. The rotation solution for the PN population is essentially identical with that of the H I, but the vertical velocity dispersion of 19.1 km/s is much greater than the value of 5.4 km/s found for the H I. This increase in velocity dispersion is consistent with it being the result of orbital heating and diffusion operating in the LMC in a manner essentially identical with that found for the solar neighborhood.
Dopita Michael A.
Ford Holland C.
Meatheringham Stephen J.
Webster Louise B.
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