The kinematics and internal dynamics of planetary nebulae in the small Magellanic Cloud

Details The kinematics and internal dynamics of planetary nebulae in the small Magellanic Cloud The kinematics and internal dynamics of planetary nebulae in the small Magellanic Cloud

Sep 1985

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1985apj...296..390d&link_type=abstract

Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 296, Sept. 15, 1985, p. 390-398.

Astronomy and Astrophysics

Astrophysics

96

Kinematics, Magellanic Clouds, Planetary Nebulae, Radial Velocity, Stellar Evolution, White Dwarf Stars, Astronomical Spectroscopy, Emission Spectra, Galactic Structure, Line Spectra, Oxygen Ions, Spectral Resolution, Velocity Distribution

Scientific paper

Kinematical and dynamical data for 44 SMC planetary nebulae (PNs) are presented at a velocity resolution of 12 km/s. The PNs form an unstructured spheroidal population apparently associated with the Bar with centroid at alpha 00 h 49 m 39 s, delta -73 deg 30 min (1950) and with a mean radial velocity of -17 km/s. Their velocity dispersion implies a mass of 900 million solar masses within a radius of 3 kpc of the centroid. These PNs, which form a population of age greater than about 100 million years, appear to be loosely associated with the lower velocity component of the H I, suggesting that the high-velocity H I component is dynamically young. A remarkably good correlation between the expansion velocity and the excitation class is found, which may show that the mass of the white dwarf central star is the major variable influencing the expansion velocity of PNs.

Affiliated with

Also associated with

No associations

Rating

The kinematics and internal dynamics of planetary nebulae in the small Magellanic Cloud does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with The kinematics and internal dynamics of planetary nebulae in the small Magellanic Cloud, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and The kinematics and internal dynamics of planetary nebulae in the small Magellanic Cloud will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-798703