Results 131 to 140 of about 27,938 (255)
The Planetary Nebula in Cygnus (R.A. 21h 2m, Decl. $47^{\circ} \,{22}^{\prime}$ [PDF]
, 1881 S. W. Burnham
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The Ionization State of the Halo Planetary Nebula NGC 2438
, 2011 NGC 2438 is a classical multiple shell or halo planetary nebula (PN). Its central star and the main nebula are well studied. Also it was target of various hydrodynamic simulations (Corradi et al. 2000).
Armsdorfer +4 more
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Nuclei of Planetary Nebulae [PDF]
Symposium - International Astronomical Union, 1973 In 1969 Aller and I collected information about the spectra of emission-line nuclei of planetary nebulae. (See also Aller, 1967, for classification of both emission and absorption spectra.) We classified them and compared them to the spectra of Population I stars. Our idea was to follow this general classification by detailed observation and comparison
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On the radiation pressure in a planetary nebula, I [PDF]
, 1950 Wasaburo Unno
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Dust in planetary nebulae [PDF]
Proceedings of the International Astronomical Union, 2016 AbstractInfrared spectra from the Spitzer Space Telescope trace the evolution of carbon-rich dust from the asymptotic giant branch (AGB) to young planetary nebulae (PNe). On the AGB, amorphous carbon dominates the dust, but SiC and MgS also appear. In more evolved systems with warmer central stars, the spectra reveal the unidentified 21 μm feature ...
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Outflowing Gas in the Planetary Nebula K 3-54
The Astronomical JournalAs planetary nebulae evolve, they develop slow and strong dust-driven stellar winds, making the joint study of dust and gas essential for understanding their nature.
Xiuhui Chen +5 more
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MILAN Sky Survey, a dataset of raw deep sky images captured during one year with a Stellina automated telescope. [PDF]
Data Brief, 2023 Parisot O +5 more
europepmc +1 more source