Results 181 to 190 of about 7,989 (218)

Status of the ΛCDM theory: supporting evidence and anomalies. [PDF]

Philos Trans A Math Phys Eng Sci
Peebles PJE.
europepmc   +1 more source

Emission-Line Profiles in Planetary Nebulae [PDF]

, 1968
Donald E. Osterbrock
openalex   +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

Alteration of twilight sky brightness profile by light pollution. [PDF]

Sci Rep
Faid MS, Shariff NNM, Hamidi ZS, Wahab RA, Ahmad N, Mohd Nawawi MSA, Nahwandi MS.   +6 more
europepmc   +1 more source

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

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

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

The mule on the Mount Wilson trail: George Ellery Hale, American scientific cosmology, and cosmologies of American science. [PDF]

Hist Sci
Oliver K.
europepmc   +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

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