Results 71 to 80 of about 90,767 (300)

A Candidate Dual Active Galactic Nucleus At Z=1.175 [PDF]

, 2012
The X-ray source CXOXBJ142607.6+353351 (CXOJ1426+35), which was identified in a 172 ks Chandra image in the Bootes field, shows double-peaked rest-frame optical/UV emission lines, separated by 0.''69 (5.5 kpc) in the spatial dimension and by 690 km s(-1)
Assef, Roberto J., Barrows, R. Scott, Comerford, Julia M., Cushing, Michael C., Fassnacht, Christopher D., Gonzalez, Anthony H., Griffith, Roger, Harrison, Fiona, Hickox, Ryan, Kirkpatrick, J. Davy, Lagattuta, David J., Madsen, Kristin, Stern, Daniel   +12 more
core   +2 more sources

Unlocking the Power of Quercetin‐Encapsulated Mesoporous Bioactive Glass Nanoparticles: A Multifunctional Approach to Bone Regeneration

Advanced Engineering Materials, EarlyView.
Mesoporous bioactive glass nanoparticles (MBGNs) are investigated for bone regeneration given their remarkable structural and functional properties. MBGNs are functionalized with Mn and Cu and incorporated with quercetin, a natural flavonoid exhibiting antioxidant, anti‐inflammatory, and antimicrobial properties.
Giovanni Lo Bello, Qaisar Nawaz, Pier Francesco Ferrari, Laura Pastorino, Roberto Raiteri, Aldo R. Boccaccini   +5 more
wiley   +1 more source

Active Galactic Nucleus Feedback in an Elliptical Galaxy with the Most Updated AGN Physics. I. Low Angular Momentum Case [PDF]

, 2017
We investigate the effects of AGN feedback on the cosmological evolution of an isolated elliptical galaxy by performing two-dimensional high-resolution hydrodynamical numerical simulations. The inner boundary of the simulation is chosen so that the Bondi
F. Yuan, D. Yoon, Ya-Ping Li, Z. Gan, L. Ho, Fulai Guo   +5 more
semanticscholar   +1 more source

Elliptical Galaxy in the Making: The Dual Active Galactic Nuclei and Metal-enriched Halo of Mrk 273 [PDF]

, 2019
A systematic analysis of the X-ray emission from the nearby ultraluminous infrared galaxy Mrk 273 was carried out by combining new 200 ksec Chandra data with archived 44 ksec data.
Iwasawa, Kazushi, Liu, Weizhe, Max, Claire E., Melendez, Marcio, Rupke, David S. N., Sanders, David, Teng, Stacy, Tombesi, Francesco, U, Vivian, Veilleux, Sylvain   +9 more
core   +2 more sources

Spectrally Tunable 2D Material‐Based Infrared Photodetectors for Intelligent Optoelectronics

Advanced Functional Materials, EarlyView.
Intelligent optoelectronics through spectral engineering of 2D material‐based infrared photodetectors. Abstract The evolution of intelligent optoelectronic systems is driven by artificial intelligence (AI). However, their practical realization hinges on the ability to dynamically capture and process optical signals across a broad infrared (IR) spectrum.
Junheon Ha, Yingshan Ma, Yong Nam An, Sung‐Un An, Hyeon Hak Jung, Suvi‐Tuuli Varjamo, Jiwon Yoo, Junho Min, Hanvit Kim, Faisal Ahmed, Sang Hoon Chae, Young Min Song, Weiwei Cai, Tawfique Hasan, Zhipei Sun, Dong‐Ho Kang, Hyeon‐Jin Shin, Yunyun Dai, Hoon Hahn Yoon   +18 more
wiley   +1 more source

X-Ray Flares in the Long-term Light Curve of Low-luminosity Active Galactic Nucleus M81*

The Astrophysical Journal, 2023
Most active galactic nuclei at the center of the nearby galaxies have supermassive black holes accreting at sub-Eddington rates through hot accretion flows or radiatively inefficient accretion flows, which efficiently produce jets.
Gunjan Tomar, Nayantara Gupta
doaj   +1 more source

NGC 4151 - A unified active galactic nucleus

, 1996
We present a unified picture of active galactic nuclei which we construct from a detailed model of line emission in the active source in NGC 4151. In this scheme NGC 4151 can be regarded as a typical active nucleus, special only in its orientation. This alleviates a number of problems with a unified picture based on a dusty molecular torus with a fixed
Cassidy, I, Raine, D. J.
openaire   +2 more sources

Performance Constraints of All‐Perovskite Tandem Solar Cells in Low‐Intensity, Low‐Temperature Environments

Advanced Materials, EarlyView.
All‐perovskite tandem solar cells are evaluated under low‐intensity and low‐temperature (LILT) conditions relevant to space environments. Distinct loss regimes emerge, where weaker entropic mixing causes halide segragation below ≈240 K going along with a strong current imbalance, while poor electron transport in C60 dominates.
Sercan Ozen, Etienne Beier, Francisco Peña‐Camargo, Jarla Thiesbrummel, Gianluca Boccarella, Paria Forozi Sowmeeh, Martin Stolterfoht, Dieter Neher, Kai Oliver Brinkmann, Thomas Riedl, Felix Lang   +10 more
wiley   +1 more source

Prior-informed Active Galactic Nucleus Host Spectral Decomposition Using PyQSOFit

The Astrophysical Journal
We introduce an improved method for decomposing the emission of active galactic nuclei (AGN) and their host galaxies using templates from principal component analysis (PCA).
Wenke Ren, Hengxiao Guo, Yue Shen, John D. Silverman, Colin J. Burke, Shu Wang, Junxian Wang   +6 more
doaj   +1 more source

The Spatially Uniform Spectrum of the Fermi Bubbles: The Leptonic Active Galactic Nucleus Jet Scenario [PDF]

, 2017
The Fermi bubbles are among the most important findings of the Fermi Gamma-ray Space Telescope; however, their origin is still elusive. One of the unique features of the bubbles is that their gamma-ray spectrum, including a high-energy cutoff at ∼110 GeV
H. Yang, M. Ruszkowski
semanticscholar   +1 more source