Results 71 to 80 of about 141,201 (236)

AGN Feedback Signatures in UV Emission

Galaxies
Supermassive black holes (SMBH) are believed to influence galaxy evolution through AGN (active galactic nuclei) feedback. Galaxy mergers are key processes of galaxy formation that lead to AGN activity and star formation.
K. Rubinur
doaj   +1 more source

Carboplatin– Nakai combination synergistically enhances apoptosis by suppressed Akt, Erk, and Stat3 expression in H460 human lung cancer cells

European Journal of Inflammation, 2018
The lower potency of low dose of carboplatin often requires combination with other drugs to improve its efficacy. Newer and more potent carboplatin-based combination therapies are investigated for treatment.
Jin Mo Ku, Se Hyang Hong, Hyo In Kim, Jun Seok Jung, Myung Ju Jung, Ji Hye Kim, Hye Sook Seo, Yong Cheol Shin, Seong-Gyu Ko   +8 more
doaj   +1 more source

On the occupation of X-ray selected galaxy groups by radio AGN since z=1.3

, 2011
Previous clustering analysis of low-power radio AGN has indicated that they preferentially live in massive groups. The X-ray surveys of the COSMOS field have achieved a sensitivity at which these groups are directly detected out to z=1.3.
A. Finoguenov, Best, Bower, Capak, Cappelluti, Churazov, Condon, Croton, E. Schinnerer, Elvis, Finoguenov, G. Zamorani, Giodini, Giodini, Hasinger, Ilbert, Leauthaud, Ledlow, Lilly, Lin, M. Tanaka, Mandelbaum, Mandelbaum, Miyaji, N. Scoville, S. Giodini, Schinnerer, Scoville, Smolčić, Smolčić, Smolčić, Smolčić, Smolčić, V. Smolčić, van den Bosch, Wake   +35 more
core   +1 more source

Simulations of Galactic Outflows Driven by Active Galactic Nuclei and Starbursts

The Astrophysical Journal
Using the hydro code Athena++ , we run a series of large-scale hydrodynamic simulations of galactic outflows on a scale of ∼5 kpc scale over a time period of 5 Myr.
Ryan Tanner, Kimberly A. Weaver, Anna Ogorzałek   +2 more
doaj   +1 more source

New Conformally Invariant Born–Infeld Models and Geometrical Currents

Physics
A new conformally invariant gravitational generalization of the Born–Infeld (BI) model is proposed and analyzed from the point of view of symmetries. Taking a geometric identity involving the determinant functions detfBμν, Fμν with the Bach Bμν and the ...
Diego Julio Cirilo-Lombardo
doaj   +1 more source

On the Time Scales of Optical Variability of AGN and the Shape of Their Optical Emission Line Profiles

Atoms, 2019
The mechanism of the optical variability of active galactic nuclei (AGN) is still very puzzling. It is now widely accepted that the optical variability of AGN is stochastic, producing red noise-like light curves. In case they were to be periodic or quasi-
Edi Bon, Paola Marziani, Predrag Jovanović, Nataša Bon   +3 more
doaj   +1 more source

Revisit of Correlation Analysis between Active Galactic Nuclei and Ultra-High Energy Cosmic Rays

, 2013
We update the previous analysis of correlation between ultra-high energy cosmic rays (UHECR) and active galactic nuclei (AGN), using 69 UHECR events with energy $E\ge55\,{\rm EeV}$ released in 2010 by Pierre Auger observatory and 862 AGN within the ...
Kim, Hang Bae, Kim, Jihyun
core   +1 more source

The Merging Galaxy Cluster Environment Affects the Morphology of Radio Active Galactic Nuclei

The Astrophysical Journal
It has previously been found that the galaxy cluster environment can affect the fueling and evolution of active galactic nuclei (AGN). This work examines the effect of the merging cluster environment on the properties of radio AGN by comparing the radio ...
Mary Rickel, Emily Moravec, Yjan A. Gordon, Martin J. Hardcastle, Jonathon C. S. Pierce, Lawrence E. Bilton, Ian D. Roberts   +6 more
doaj   +1 more source

Coherent State Description of Astrophysical Gamma-Ray Amplification from a Para-Positronium Condensate

Particles
The para-positronium system S01Ps is described by means of specially constructed coherent states (CSs) in the Klauder–Perelomov sense. It is analyzed from the physical point of view and from the geometry underlying the relevant symmetry group ...
Diego Julio Cirilo-Lombardo
doaj   +1 more source

AGN Absorption Linked to Host Galaxies

, 2013
Multiwavelength identification of AGN is crucial not only to obtain a more complete census, but also to learn about the physical state of the nuclear activity (obscuration, efficiency, etc.).
Juneau, Stéphanie
core   +1 more source