Results 151 to 160 of about 6,087 (169)
Soft X-ray properties of Seyfert galaxies. I - Spectra
, 1990 J. S. Kruper +2 more
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Progress and prospects in high energy astrophysics. [PDF]
Proc Natl Acad Sci U S A, 1975 Rees MJ.
europepmc +1 more source
On the origin of the Z-shaped narrow-line region in the Seyfert galaxy NGC 3516
, 1993 Sylvain Veilleux +2 more
openalex +1 more source
Magellanic Clouds: VI. Revised Distances and Luminosities. [PDF]
Proc Natl Acad Sci U S A, 1953 Shapley H.
europepmc +1 more source
High-excitation extranuclear gas in Seyfert galaxies
, 1991 Christopher A. Haniff +2 more
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FLUCTUATIONS IN THE SPACE DISTRIBUTION OF THE GALAXIES. [PDF]
Proc Natl Acad Sci U S A, 1954 Rubin VC.
europepmc +1 more source
X-ray spectral variability of the Seyfert 1 galaxy NGC 4051
, 1992 Hideyo Kunieda +5 more
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RADIO SOURCES, GALAXIES, AND CLUSTERS OF GALAXIES [PDF]
Proc Natl Acad Sci U S A, 1963 europepmc +1 more source