Results 1 to 10 of about 37,962 (225)

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

NNMT Orchestrates Metabolic‐Epigenetic Reprogramming to Drive Macrophage‐Myofibroblast Transition in Hypertrophic Scarring

Advanced Science, EarlyView.
In macrophage‐myofibroblast transition, upregulated NNMT depletes S‐Adenosylmethionine‌ (SAM) and nicotinamide adenine dinucleotide(NAD+), thereby triggering epigenetic reprogramming via Histone H3 Lysine 27 acetylation (H3K27ac) accumulation at the promoter region of master transcription factor Prrx1.
Xiwen Dong, Weinan Guo, Yuxuan Qian, Wenyan Jin, Xiaozhen Li, Jingyuan Yang, Qingrong Ni, Shuang Wu, Fanni Li, Hua Wang, Chunying Li, Hong Cai   +11 more
wiley   +1 more source

Substituent‐Based Modulation of Self‐Assembly and Immunogenicity of Amphipathic Peptides

Advanced Science, EarlyView.
This study systematically investigates how positional and subtle changes, such as substituents on the phenyl ring attached to short amphipathic peptides, influence their self‐assembly, fibril morphology, and immunogenic responses. ABSTRACT Self‐assembled peptide‐based biomaterials provide versatile platforms for biomedical uses, featuring customizable ...
Anirban Das, Ushasi Pramanik, Elise M. Brown, Chih‐Yun Liu, Huan Gong, Jonathan Fascetti, Mark Gibson, Samuel Stealey, Silviya P. Zustiak, Cory Berkland, Piyoosh Sharma, Meredith E. Jackrel, Mark A. White, Jai S. Rudra   +13 more
wiley   +1 more source

Warm absorber outflows in radio-loud active galactic nucleus 3C 59

Astronomy & Astrophysics
Context. Both jets and ionized outflows in active galactic nuclei (AGNs) are thought to play important roles in affecting the star formation and evolution of host galaxies, but their relationship is still unclear. Aims.
Wang Yijun, Wang Tao, Mao Junjie, Xu Yerong, He Zhicheng, Zhou Zheng, Li Chen, Xue Yongquan, Chen Jiayi, Shi Fangzheng, Mehdipour Missagh   +10 more
doaj   +1 more source

The Peculiar Variable X-Ray Spectrum of the Active Galactic Nucleus PKS 2005–489

The Astrophysical Journal, 2023
PKS 2005−489 is a well-known, bright southern BL Lac object that has been detected up to TeV energies. In a low-flux state it exhibits the expected multiwavelength double-peaked spectrum in the radio− γ -ray band.
Owen Chase, Felicia McBride, Andrea Gokus, Matteo Lucchini, Haocheng Zhang, Roopesh Ojha, Derek B. Fox   +6 more
doaj   +1 more source

Revealing the active galactic nucleus in the superantennae through L-band spectroscopy

, 2003
We present an L-band spectrum of the Ultraluminous Infrared Galaxy IRAS 19254-7245 (the Superantennae), obtained with VLT-ISAAC. The high signal to noise ratio allows a study of the main spectral features with unprecedented detail for an extragalactic ...
A. Franceschini, A. Marconi, G. Risaliti, L. Bassani, Laurent O., M. Salvati, Mirabel I. F., Moorwood A. F. M., R. Della Ceca, R. Maiolino, Risaliti G., Roche P. F., S. Berta, V. Braito   +13 more
core   +1 more source

Quantitative Stain Mapping in X‐Ray Virtual Histology

Advanced Science, EarlyView.
Virtual histology promises 3D tissue examination without physical sectioning, yet has lacked the tissue‐specificity of conventional pathology. This work demonstrates the first quantitative three‐dimensional stain mapping at histologically relevant resolution, separating contrast agent from tissue to reveal cellular features such as nuclei. The approach
Dominik John, David M. Paganin, Marie‐Christine Zdora, Lisa Marie Petzold, Patrick Ilg, Junan Chen, Sara Baggio, Johannes B. Thalhammer, Sami Wirtensohn, Julian Moosmann, Jörg U. Hammel, Felix Beckmann, Samantha J. Alloo, Jannis N. Ahlers, Madleen Busse, Julia Herzen, Kaye S. Morgan   +16 more
wiley   +1 more source

Retrograde infall of the intergalactic gas onto S-galaxy and activity of galactic nuclei

Open Astronomy
We present the results of numerical simulations focused on the accretion of intergalactic gas onto a gas-rich S-type disc galaxy. Our investigation explores the conditions favouring the emergence of counterrotating stellar and gaseous components within ...
Khrapov Sergey S., Khoperskov Alexander V.   +1 more
doaj   +1 more source

Observational limits on type 1 active galactic nucleus rate in COSMOS [PDF]

, 2009
We present black hole masses and accretion rates for 182 Type 1 active galactic nuclei (AGNs) in COSMOS. We estimate masses using the scaling relations for the broad H β, Mg ii, and C iv emission lines in the redshift ranges 0.16 < z < 0.88, 1 < z < 2 ...
Bongiorno, Angela, Brusa, Marcella, Cappelluti, Nico, Elvis, Martin, Gabor, Jared, Hao, Heng, Huchra, John P., Impey, Chris D., Kelly, Brandon C., Koekemoer, A., McCarthy, Patrick J., Merloni, Andrea, Nagao, Tohru, Salvato, Mara, Scoville, Nick Z., Trump, Jonathan R.   +15 more
core  

HST/WFC3 Observations of an Off-Nuclear Superbubble in Arp 220 [PDF]

, 2015
We present a high spatial resolution optical and infrared study of the circumnuclear region in Arp 220, a late-stage galaxy merger. Narrowband imaging using HST/WFC3 has resolved the previously observed peak in H$\alpha$+[NII] emission into a bubble ...
Allen, Mark G., Calzetti, Daniela, Davies, Richard I., Dopita, Michael A., Engel, Hauke, Heckman, Timothy M., Kewley, Lisa J., Leitherer, Claus, Lockhart, Kelly E., Lu, Jessica R., Rupke, David, Sanders, David B.   +11 more
core   +1 more source