Results 91 to 100 of about 6,433 (179)

Spectroscopic survey of faint planetary-nebula nuclei

open access: yesAstronomy & Astrophysics
We present an analysis of 17 H-rich central stars of planetary nebulae (PNe) observed in our spectroscopic survey of nuclei of faint Galactic PNe carried out at the 10-m Hobby-Eberly Telescope. Our sample includes ten O(H) stars, four DAO white dwarfs (WDs), two DA WDs, and one sdOB star.
Nicole Reindl   +3 more
openaire   +4 more sources

Emission processes and dynamics of hot gases in astrophysics [PDF]

open access: yes
A detailed model was developed for Kepler's supernova remnant (SNR). Observations of the SNR revealed a strong interaction with the surrounding circumstellar medium, which was studied through both analytical and numerical calculations.
Chevalier, Roger A., Sarazin, Craig L.
core   +1 more source

87th Annual Meeting of the Meteoritical Society 2025: Abstracts

open access: yes
Meteoritics &Planetary Science, Volume 60, Issue S1, Page 30-350, August 2025.
wiley   +1 more source

Electron densities for six planetary nebulae and HM SGE derived from the C 3 lambda 1907/1909 ratio [PDF]

open access: yes
Electron densities for IC 418, NGC 6572, IC 1297, NGC 3242, NGC 6818, NGC 3211, and HM Sge derived from high dispersion IUE C III spectrograms are consistently higher than those derived from either surface brightness measurements of forbidden line ...

core   +1 more source

Amino acid gas phase circular dichroism and implications for the origin of biomolecular asymmetry. [PDF]

open access: yesNat Commun, 2022
Meinert C   +8 more
europepmc   +1 more source

86th Annual Meeting of the Meteoritical Society (2024)

open access: yes
Meteoritics &Planetary Science, Volume 59, Issue S1, Page A1-A468, August 2024.
wiley   +1 more source

The Temperatures of the Nuclei of Planetary Nebulae [PDF]

open access: yesMonthly Notices of the Royal Astronomical Society, 1933
R. H. Stoy, A. Eddington
openaire   +2 more sources

On the Origin and Evolution of the Material in 67P/Churyumov-Gerasimenko. [PDF]

open access: yesSpace Sci Rev, 2020
Rubin M   +7 more
europepmc   +1 more source

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