Results 191 to 200 of about 22,530 (230)

The nuclear region of the spiral galaxy M81. [PDF]

Proc Natl Acad Sci U S A, 1995
Bartel N, Bietenholz MF, Rupen MP.
europepmc   +1 more source

A case for a binary black hole system revealed via quasi-periodic outflows. [PDF]

Sci Adv
Pasham DR, Tombesi F, Suková P, Zajaček M, Rakshit S, Coughlin E, Kosec P, Karas V, Masterson M, Mummery A, Holoien TW, Guolo M, Hinkle J, Ripperda B, Witzany V, Shappee B, Kara E, Horesh A, van Velzen S, Sfaradi I, Kaplan D, Burger N, Murphy T, Remillard R, Steiner JF, Wevers T, Arcodia R, Buchner J, Merloni A, Malyali A, Fabian A, Fausnaugh M, Daylan T, Altamirano D, Payne A, Ferraraa EC.   +35 more
europepmc   +1 more source

Above the Noise: The Search for Periodicities in the Inner Heliosphere. [PDF]

Sol Phys, 2017
Threlfall J, De Moortel I, Conlon T.
europepmc   +1 more source

Dust evolution, a global view: III. Core/mantle grains, organic nano-globules, comets and surface chemistry. [PDF]

R Soc Open Sci, 2016
Jones AP.
europepmc   +1 more source

Outstanding problems and instrumental prospects for the coming decade (A Review). [PDF]

Proc Natl Acad Sci U S A, 1977
Ostriker JP.
europepmc   +1 more source

Probing active galactic nuclei with H2O megamasers. [PDF]

Proc Natl Acad Sci U S A, 1995
Moran J, Greenhill L, Herrnstein J, Diamond P, Miyoshi M, Nakai N, Inque M.   +6 more
europepmc   +1 more source

A binary merger product as the direct progenitor of a Type II-P supernova

Niu* Z, Sun* N, Zapartas* E, Souropanis D, Cui Y, Maund JR, Andrews JJ, Briel MM, Fraser M, Gossage S, Kruckow MU, Liotine C, Liu Z, Srivas PM, Teng E, Wang X, Yang Y, Liu J.   +17 more
europepmc   +1 more source

Electron Scattering in Seyfert Galaxies

The Astrophysical Journal, 1970
openaire   +1 more source

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Infrared Background from Seyfert Galaxies

Nature, 1970
Kleinmann and Low1 and Low2 have recently reported measurements of the infrared spectrum of the Seyfert galaxy NGC 1068. The spectrum was found to be sharply peaked at a wavelength of ∼100 µm (with an uncertainty of a factor of two or three toward longer wavelengths), while the total infrared luminosity amounts to L∼2.5 × 1046 erg s−1 (for a Hubble ...
G, Setti, L, Woltjer
openaire   +2 more sources