Publications of the Astronomical Society of the Pacific, Volume 106, Issues 695-702Astronomical Society of the Pacific, 1994 |
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Page 500
... planetary nebulae is compared to that for the circumstellar envelopes of AGB stars . We have examined the relationship between ionized and neutral expansion velocities for the nebulae with detected circumnebular neutral shells . It is ...
... planetary nebulae is compared to that for the circumstellar envelopes of AGB stars . We have examined the relationship between ionized and neutral expansion velocities for the nebulae with detected circumnebular neutral shells . It is ...
Page 503
... planetary nebulae ( Rion≤0.05 pc ) and the mo- lecular stellar winds of AGB stars . Data are binned in groups of Av = 5.0 km s with a central velocity given by the written x axis value . The differ- ences ... PLANETARY NEBULAE 503.
... planetary nebulae ( Rion≤0.05 pc ) and the mo- lecular stellar winds of AGB stars . Data are binned in groups of Av = 5.0 km s with a central velocity given by the written x axis value . The differ- ences ... PLANETARY NEBULAE 503.
Page 507
of planetary nebulae until after the ionized radii of the nebu- lae reach a value larger than about 0.05 pc . It is interesting to note that many of the planetary nebulae with observed molecular and atomic envelopes have signifi- cantly ...
of planetary nebulae until after the ionized radii of the nebu- lae reach a value larger than about 0.05 pc . It is interesting to note that many of the planetary nebulae with observed molecular and atomic envelopes have signifi- cantly ...
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Common terms and phrases
absorption abundance accretion analysis asteroids Astronomical Society binary bright calibration catalog central star chromospheric clouds color comets correction derived detection detector diagram disk distribution eclipse emission errors estimate evolution expansion velocities Fe/H field flux frame function galactic galaxies GCLF giant branch globular clusters H II regions Hyades indices infrared ionized km s¹ light curve lines luminosity magnitude main sequence main-sequence mass measured MNRAS objects observations Observatory obtained open clusters optical orbital parameters PASP period phase photometric pixel planetary nebulae plotted quasars radial velocities radius range ratio red giants reddening redshift region residuals rotation sample scale scatter secondary solar sources spectral type spectroscopic spectrum standard stellar stellar winds subgiant survey Table telescope temperature tion turnoff values variability wavelength white dwarf width X-ray XX Vir