Results 211 to 220 of about 212,521 (235)

International Ultraviolet Explorer satellite observations of seven high-excitation planetary nebulae. [PDF]

Proc Natl Acad Sci U S A, 1980
Aller LH, Keyes CD.
europepmc   +1 more source

Radio Observations of Planetary Nebulae [PDF]

, 1968
Jon Davies
openalex   +1 more source

The Possibility of Beta decay in the Atmospheres of Nuclei of Planetary Nebulae [PDF]

, 1968
Г. А. Гурзадян
openalex   +1 more source

A Network Approach for the Accurate Characterization of Water Lines Observable in Astronomical Masers and Extragalactic Environments. [PDF]

ACS Earth Space Chem
Ubachs W, Császár AG, Diouf ML, Cozijn FMJ, Tóbiás R.   +4 more
europepmc   +1 more source

Observational Aspects of the Evolution of Planetary Nebulae and their Central Stars [PDF]

, 1968
C. R. O’dell
openalex   +1 more source

Evolution of phosphate scouting in the terrestrial biosphere. [PDF]

Philos Trans R Soc Lond B Biol Sci
Abel S, Naumann C.
europepmc   +1 more source

Spectrophotometric Studies of Gaseous Nebulae. XII. The Symmetrical Planetary IC 3568

, 1969
Paul Lee, L. H. Aller, S. J. Czyzak, Rhonda N. Duvall   +3 more
openalex   +1 more source

The Chemistry of Cosmic Dust Analogues from C, C₂, and C₂H₂ in C-Rich Circumstellar Envelopes. [PDF]

Astrophys J, 2020
Santoro G, Martínez L, Lauwaet K, Accolla M, Tajuelo-Castilla G, Merino P, Sobrado JM, Peláez RJ, Herrero VJ, Tanarro I, Mayoral ÁL, Agúndez M, Sabbah H, Joblin C, Cernicharo J, Martín-Gago JÁ.   +15 more
europepmc   +1 more source

The Bowen Fluorescence Mechanism in Planetary Nebulae and the Nuclei of Seyfert Galaxies

, 1969
R. J. Weymann, R. E. Williams
openalex   +1 more source

PHOTOELECTRIC SPECTROPHOTOMETRY OF PLANETARY NEBULAE. [PDF]

Proc Natl Acad Sci U S A, 1963
Liller W, Aller LH.
europepmc   +1 more source