Results 141 to 150 of about 212,521 (235)

Phosphorus-bearing molecules PO and PN at the edge of the Galaxy. [PDF]

Nature, 2023
Koelemay LA, Gold KR, Ziurys LM.
europepmc   +1 more source

The Distances of Six Planetary Nebulae [PDF]

, 1918
A. van Maanen
openalex   +1 more source

On the Continuous Spectra of the Planetary Nebulae [PDF]

, 1939
R. H. Stoy
openalex   +1 more source

Photoelectric spectrophotometry of planetary nebulae. [PDF]

, 1954
W. Liller, L. H. Aller
openalex   +1 more source

Planetary Nebula Morphologies Indicate a Jet-Driven Explosion of SN 1987A and Other Core-Collapse Supernovae

Galaxies
I demonstrate the usage of planetary nebulae (PNe) to infer that a pair of jets shaped the ejecta of the core-collapse supernova (CCSN) SN 1987A. The main structure of the SN 1987A inner ejecta, the ‘keyhole’, comprises two low-intensity zones.
Noam Soker
doaj   +1 more source

The Kinematics of Distant Galactic Planetary Nebulae and the Rotation of the Disc Population of a Magellanic-Type Irregular Galaxy [PDF]

, 1969
B. L. Webster
openalex   +1 more source

The Galactic Distribution of Planetary Nebulae [PDF]

, 1963
R. Minkowski, G. O. Abell
openalex   +1 more source

A Preliminary Radio Survey of Planetary Nebulae South of Declination 24 Degrees [PDF]

, 1965
Ο. B. Slee, D. Wayne Orchiston
openalex   +1 more source

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

The 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

Polycyclic aromatic hydrocarbons and molecular hydrogen in oxygen-rich planetary nebulae: the case of NGC 6720. [PDF]

Mon Not R Astron Soc, 2016
Cox NL, Pilleri P, Berné O, Cernicharo J, Joblin C.   +4 more
europepmc   +1 more source