Results 191 to 200 of about 184,376 (200)

Radio Sources in Low-Luminosity Active Galactic Nuclei. III. "AGNs" in a Distance-Limited Sample of "LLAGNs"

, 2002
Neil M. Nagar, H. Falcke, A. S. Wilson, J. S. Ulvestad   +3 more
openalex   +2 more sources

Variable Nature of Magnetically-Driven Ultra-Fast Outflows. [PDF]

Astrophys J Lett, 2018
Fukumura K, Kazanas D, Shrader C, Behar E, Tombesi F, Contopoulos I.   +5 more
europepmc   +1 more source

Feedback mechanisms stopping the star formation in a pair of massive galaxies in the early Universe

Pérez-González P, D'Eugenio F, Pino BRD, Perna M, Uebler H, Maiolino R, Arribas S, Lamperti I, Bunker A, Carniani S, Charlot S, Willott C, Böker T, Parlanti E, Scholtz J, Venturi G, Barro G, Costantin L, Navarro IM, Dunlop J, Magee D, Cresci G.   +21 more
europepmc   +1 more source

Using JADES NIRCam photometry to investigate the dependence of stellar mass inferences on the IMF in the early universe. [PDF]

Proc Natl Acad Sci U S A
Woodrum C, Rieke M, Ji Z, Baker WM, Bhatawdekar R, Bunker AJ, Charlot S, Curtis-Lake E, Eisenstein DJ, Hainline K, Hausen R, Helton JM, Hviding RE, Johnson BD, Robertson B, Sun F, Tacchella S, Whitler L, Williams CC, Willmer CNA.   +19 more
europepmc   +1 more source

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Accretion properties of low‐luminosity active galactic nuclei

Astronomische Nachrichten, 2021
AbstractWe aim to leverage the transformational science enabled by the Event Horizon Telescope (EHT) to study the physics of, and near, the black holes in a sample of galaxies covering a large parameter space in supermassive black hole mass, accretion rate, and jet power. To this end, we work on a sample of nearby galaxies whose directly measured black
Venkatessh Ramakrishnan, Chi‐Kwan Chan, Neil Nagar   +2 more
openaire   +2 more sources

Starbursts in Low Luminosity Active Galactic Nuclei

2005
Low Luminosity Active Galactic Nuclei (LLAGN), which comprise low-ionization nuclear emission-line regions (LINERs) and transition-type objects (TOs), represent the most common type of nuclear activity. Here, we search for spectroscopic signatures of starbursts and post-starbursts in LLAGN, and investigate their relationship to the ionization mechanism
Roberto Cid Fernandes, Rosa M. González Delgado   +1 more
openaire   +2 more sources

11.17. Radio emission from low-luminosity active galactic nuclei

Symposium - International Astronomical Union, 1998
“Low-luminosity” active galactic nuclei (LLAGNs) typically have ≳ mag, as opposed to −18 to −30 mag for luminous Seyfert 1 nuclei and QSOs. The physical origin of the class of emission-line nuclei known as low-ionization nuclear emission-line regions (LINERs; Heckman 1980) remains controversial.
Schuyler D. Van Dyk, Luis C. Ho
openaire   +2 more sources

The Luminosity Function of Quasars and Low Luminosity Active Galactic Nuclei

1986
The quasar luminosity function is extended to include the nuclear luminosities of Seyfert 1 galaxies. The model is fitted to the (total) luminosity data for the active galaxies from a complete flux-limited survey. A good fit is obtained with dN/dL∝L-1.2, matching onto the steeper quasar luminosity function near MB=-22.
openaire   +3 more sources

Stellar Ionization of Low-Luminosity Active Galactic Nuclei [PDF]

, 1994
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An X-Ray approach to low luminosity active galactic nuclei

2009
Tesis Univ. Granada. Departamento de Física Teórica y del Cosmos.
openaire   +1 more source