Results 101 to 110 of about 90,767 (300)

Quad‐SPIM: A High‐Speed, Multi‐Color Light‐Sheet Microscope for 3D Imaging of Large Cleared Human Brain Tissues

Laser &Photonics Reviews, EarlyView.
A high‐speed, multi‐color light‐sheet microscope, named quad‐SPIM, enables rapid three dimensional (3D) imaging of large cleared human brain samples with simultaneous four‐channel acquisition. This custom‐built system achieves subcellular resolution across centimeter‐scale volumes, maintaining high image quality.
Laura Perego, Franco Cheli, Samuel Bradley, Danila Di Meo, Luca Giannoni, Josephine Ramazzotti, Federica Fenizi Caria, Giuseppe Sancataldo, Michele Sorelli, Giacomo Mazzamuto, Irene Costantini, Francesco Saverio Pavone   +11 more
wiley   +1 more source

Could the Interband Lag of Active Galactic Nucleus Vary Randomly?

The Astrophysical Journal
The interband lags among the optical broad-band continua of active galactic nuclei (AGNs) have been intensively explored over the past decade. However, the nature of the lags remains under debate.
Zhen-Bo Su, Zhen-Yi Cai, Jun-Xian Wang, Tinggui Wang, Yongquan Xue, Min-Xuan Cai, Lulu Fan, Hengxiao Guo, Zhicheng He, Zizhao He, Xu-Fan Hu, Ji-an Jiang, Ning Jiang, Wen-Yong Kang, Lei Lei, Guilin Liu, Teng Liu, Zhengyan Liu, Zhenfeng Sheng, Mouyuan Sun, Wen Zhao   +20 more
doaj   +1 more source

Star formation history in barred spiral galaxies – active galactic nucleus feedback [PDF]

, 2017
We present a numerical study of the impact of AGN accretion and feedback on the star formation history of barred disc galaxies. Our goal is to determine whether the effect of feedback is positive (enhanced star formation) or negative (quenched star ...
Fidèle Robichaud, D. Williamson, H. Martel, D. Kawata, S. Ellison   +4 more
semanticscholar   +1 more source

Probing the Heart of an Active Galactic Nucleus: NGC 1068 [PDF]

Symposium - International Astronomical Union, 2001
We present results from integral field spectroscopy of the narrow line region of NGC 1068, carried out with the MPE 3D near infrared imaging spectrometer. A map and velocity field of the [Fe II] fine structure line at 1.64μm is presented. The kinematics of the [Fe II] emission, which arises in partially ionized zones, shows red shifted emission in the ...
Tecza, M, Thatte, N, Maiolino, R
openaire   +2 more sources

Calorimetry of Active Galactic Nucleus jets: testing plasma composition in Cygnus A

, 2012
We examine plasma composition of jets in active galactic nuclei through the comparison of the total pressure ($P$) with partial pressures of electrons and protons in a cocoon.
Amato, Arnaud, Asano, Asano, Atoyan, Bach, Bach, Blandford, Blundell, Bîrzan, Cavagnolo, Croston, De Young, Dermer, F. Takahara, Garrington, Georganopoulos, Ghisellini, Godfrey, Hardcastle, Harris, Hirotani, Hirotani, Hirotani, Homan, Ichimaru, Isobe, Isobe, Ito, Iwamoto, Iwamoto, Kataoka, Kellermann, Kino, Kirk, Krichbaum, Lazio, Lister, Lister, M. Kino, McKinney, Mehta, Mizuta, N. Kawakatu, Perlman, Quataert, Rachen, Rafferty, Reynolds, Ruszkowski, Scheuer, Sikora, Sironi, Smith, Spitkovsky, Stawarz, Tashiro, Tashiro, Thompson, Uchiyama, Watanabe, Wilson, Wilson, Yaji, Yamasaki   +64 more
core   +1 more source

Tracking X-Ray Variability in Next-generation EHT Low-luminosity Active Galactic Nucleus Targets

The Astrophysical Journal
We present a 5 month NICER X-ray monitoring campaign for two low-luminosity active galactic nuclei (LLAGNs)—NGC 4594 and IC 1459—with complementary Swift and NuSTAR observations.
Nicole M. Ford, Michael Nowak, Venkatessh Ramakrishnan, Daryl Haggard, Kristen Dage, Dhanya G. Nair, Chi-kwan Chan   +6 more
doaj   +1 more source

Million‐Atom Wave Function Simulations of a Single Donor Qubit Made in Silicon Utilizing Ion Implantation Technology

Advanced Quantum Technologies, EarlyView.
Ion implanted donor atom qubits in silicon have demonstrated leading coherence times and gate fidelities. We investigate implantation positional uncertainties with a 40 million silicon atom quantum model based on the atomistic tight‐binding technique.
Haolin Huang, Liam G. Thomas, Muhammad Usman, Rajib Rahman, David N. Jamieson   +4 more
wiley   +1 more source

J2102+6015: an Intriguing Radio-loud Active Galactic Nucleus in the Early Universe [PDF]

, 2023
S. Frey, Tao An, K. É. Gabányi, Leonid Gurvits, Máté Krezinger, A. A. Melnikov, Prashanth Mohan, Z. Paragi, Krisztina Perger, Fengchun Shu, Oleg Titov, P. de Vicente, Yingkang Zhang   +12 more
openalex   +1 more source

The weak Fe fluorescence line and long-term X-ray evolution of the Compton-thick active galactic nucleus in NGC 7674 [PDF]

, 2016
We present NuSTAR X-ray observations of the active galactic nucleus (AGN) in NGC 7674. The source shows a flat X-ray spectrum, suggesting that it is obscured by Compton-thick gas columns.
P. Gandhi, P. Gandhi, A. Annuar, G. Lansbury, G. Lansbury, D. Stern, D. Alexander, F. Bauer, F. Bauer, F. Bauer, S. Bianchi, S. Boggs, P. Boorman, W. Brandt, M. Brightman, F. Christensen, A. Comastri, W. Craig, W. Craig, A. Moro, M. Elvis, M. Guainazzi, C. Hailey, F. Harrison, M. Koss, I. Lamperti, G. Malaguti, A. Masini, A. Masini, G. Matt, S. Puccetti, S. Puccetti, C. Ricci, E. Rivers, D. Walton, D. Walton, W. Zhang   +36 more
semanticscholar   +1 more source

Winter‐active spiders (Clubiona) have a hyperactive antifreeze protein with a unique beta‐solenoid fold

The FEBS Journal, EarlyView.
Antifreeze proteins from winter‐active spiders were purified using their affinity for ice. After LC–MSMS characterization, corresponding transcripts were identified. The antifreeze protein folds as a β‐solenoid with a large flat ice‐binding site on one surface and can bind to ice crystals and prevent their growth at −4 °C.
Laurie A. Graham, Stano Pekár, Ina M. Hainer, Peter L. Davies   +3 more
wiley   +1 more source