Results 131 to 140 of about 172,889 (233)

Spectroscopic Survey of Faint Planetary-nebula Nuclei. IV. The A35-type Central Star of Pa 27

open access: yesThe Astrophysical Journal
We present optical spectroscopy of the 12th-magnitude central star of the planetary nebula (PN) Patchick 27 (Pa 27), obtained during a survey of faint PN nuclei (PNNs) with the Low-Resolution Spectrograph of the Hobby–Eberly Telescope.
Howard E. Bond, Gregory R. Zeimann
doaj   +1 more source

Planetary Nebulae in the eROSITA eRASS1 Catalog

open access: yesThe Astrophysical Journal
Some planetary nebulae (PNs) host X-ray-emitting hot bubbles shaped by stellar wind interactions and/or harbor X-ray-emitting central stars due to accretion, shocks within their fast stellar winds, or even chromospheric emission from binary companions ...
Haoyang Yuan   +3 more
doaj   +1 more source

Mid-IR (8–13μm) Images of Proto-Planetary Nebulae [PDF]

open access: bronze, 1993
M. Meixner   +4 more
openalex   +1 more source

Survey of planetary nebulae at 30 GHz with OCRA-p [PDF]

open access: bronze, 2009
B. Pazderska   +11 more
openalex   +1 more source

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