Results 141 to 150 of about 27,938 (255)
A Dust-Scattering Model for M1-92: A Revised Estimate of the Mass Distribution and Inclination
GalaxiesPreplanetary nebulae (PPNe) are formed from mass-ejecting late-stage AGB stars. Much of the light from the star gets scattered or absorbed by dust particles, giving rise to the observed reflection nebula seen at visible and near-IR wavelengths ...
Yun Qi Li +2 more
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Internal Motions in the Planetary Nebula IC 4997 [PDF]
, 1962 O. C. Wilson, C. R. O’dell
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The Astronomical JournalWe report our discovery of a faint nebula surrounding a previously little-studied 15th mag variable star, ASASSN-19ds, in the Southern Hemisphere constellation Antlia. Spectra verify that the star is a cataclysmic variable (CV).
Howard E. Bond +4 more
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On the Variability of the Central Star of the Planetary Nebula HZ 1–5 [PDF]
, 1968 G. H. Herbig, A. A. Boyarchuk
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Oldhamite: a new link in upper mantle for C-O-S-Ca cycles and an indicator for planetary habitability. [PDF]
Natl Sci Rev, 2023 Liu Y +9 more
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Dynamical Evolution of a Model Planetary Nebula [PDF]
, 1968 William G. Mathews
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Earth's volatile depletion trend is consistent with a high-energy Moon-forming impact. [PDF]
Commun Earth Environ, 2023 Solomatova NV, Caracas R.
europepmc +1 more source
Echelle Studies on the Symmetrical Stratified Planetary Nebula NGC 3918 [PDF]
, 1978 M. A. Dopita
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Optical Spectroscopy and Photoionization Model of Planetary Nebula NGC 6572
Journal of Mathematical and Fundamental SciencesWe investigated NGC 6572 through optical spectroscopy to determine its kinematical and chemical properties. Two intermediate dispersion spectra (R~5000) centered around Hα and Hβ were used to derive the nebular expansion velocity from emission lines ...
Muhammad Fajrin +2 more
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