Results 81 to 90 of about 78,490 (277)

Naked active galactic nuclei [PDF]

Astronomy & Astrophysics, 2004
17 pages including 11 figures.
openaire   +4 more sources

Infrared spectroscopic diagnostics for Active Galactic Nuclei

, 2007
Infrared spectroscopy in the mid- and far-infrared provides powerful diagnostics for studying the emission regions in active galaxies. The large variety of ionic fine structure lines can probe gas conditions in a variety of physical conditions, from ...
Spinoglio, Luigi
core   +1 more source

Illuminating Satellite Cells: Light Sheet Fluorescence Microscopy for 3D Imaging of Murine Skeletal Muscles Damaged by Ex Vivo Forced Eccentric Contraction

Microscopy Research and Technique, EarlyView.
This study presents the light sheet fluorescence microscopy (LSFM) as a tool for 3D‐imaging of whole skeletal muscle to reveal satellite cells (SCs), the muscle stem cells that activate following damage to repair injured tissue. After tissue clearing and whole‐mount staining process aimed to enable optical access and specific cell labeling (1), murine ...
Rachele Garella, Elisa Imbimbo, Francesco Palmieri, Alessia Tani, Martina Parigi, Flaminia Chellini, Alessandra La Contana, Monica Mattioli Belmonte, Aurora Longhin, Ludovico Silvestri, Chiara Sassoli, Roberta Squecco   +11 more
wiley   +1 more source

The QPO in RE J1034+396 Originates in the Hot Corona

The Astrophysical Journal
RE J1034+396 is one of the few active galactic nuclei (AGNs) with a significant quasiperiodic oscillation (QPO). The QPO has been observed in over 1 Ms of XMM-Newton observations spanning over a decade. We investigate the power spectral density function (
Chloe S. Taylor, Dan R. Wilkins, Steven W. Allen   +2 more
doaj   +1 more source

LINERs as Low-Luminosity Active Galactic Nuclei

, 1998
Many nearby galaxies contain optical signatures of nuclear activity in the form of LINER nuclei. LINERs may be the weakest and most common manifestation of the quasar phenomenon.
Antonucci, Barth, Barth, Barth, Barth, Dopita, Dopita, Elvis, Eracleous, Eracleous, Fabbiano, Falcke, Ferland, Ferland, Filippenko, Fosbury, Halpern, Heckman, Ho, Ho, Ho, Ho, Ho, Ho, Ho, Ho, Iyomoto, Koratkar, Laor, Luis C Ho, Malkan, Maoz, Maoz, Narayan, Nicholson, Ptak, Ptak, Sadler, Serlemitsos, Slee, Terashima, Tsvetanov, Van Dyk, Worral, Wrobel   +44 more
core   +2 more sources

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

Somato‐Cognitive Action Network in Focal Dystonia

Movement Disorders, EarlyView.
Abstract Background The central pathology causing idiopathic focal dystonia remains unclear. The recently identified somato‐cognitive action network (SCAN) has been implicated. Objective We tested whether the effector‐agnostic SCAN may constitute a central pathology shared across dystonia subtypes, whereas the effector‐specific regions in the primary ...
Yuchao Wang, Baothy Huynh, Jianxun Ren, Mo Chen, Wei Zhang, Dan Hu, Shasha Li, Hesheng Liu, Teresa J. Kimberley   +8 more
wiley   +1 more source

Reverberation Mapping Data of NGC 5548 Imply a Multicomponent Broad-line Region

The Astrophysical Journal
Line broadening and variability are observational hallmarks of active galactic nuclei (AGN) which allow us to measure supermassive black hole masses as well as constrain the geometry and kinematics of the emitting gas, with the most precise measurements ...
Kirk Long, Jason Dexter
doaj   +1 more source

Structural and Dynamic Origins of Payne Effect Reduction by Steric Stabilization in Silica Reinforced Poly(butadiene) Nanocomposites

Polymer Composites, EarlyView.
Steric stabilisation of silica nanoparticles suppresses the Payne effect in poly(butadiene) nanocomposites and enables the thickness of the glassy layer to be quantified with QENS experiments. ABSTRACT Silica nanoparticles in polybutadiene nanocomposites cause significantly hindered polymer dynamics in the form of a glassy layer, which can extend more ...
James M. Hart, W. Douglas Carswell, Victoria García‐Sakai, Bernhard Frick, Stephen C. Boothroyd, Lian R. Hutchings, Nigel Clarke, Richard L. Thompson   +7 more
wiley   +1 more source

The physics of galactic winds driven by active galactic nuclei

, 2012
Active galactic nuclei (AGN) drive fast winds in the interstellar medium of their host galaxies. It is commonly assumed that the high ambient densities and intense radiation fields in galactic nuclei imply short cooling times, thus making the outflows ...
Abbott, Alexander, Baum, Bautista, Beck, Berger, Bland-Hawthorn, Blandford, Blandford, Booth, Braito, Chang, Chartas, Cioffi, Ciotti, Ciotti, Claude-André Faucher-Giguère, Creasey, Dai, DeBuhr, DeBuhr, Di Matteo, Dobler, Downes, Dunn, Durier, Eliot Quataert, Emmering, Falle, Ferrarese, Feruglio, Fischer, France, Fu, Gallimore, Gebhardt, Ghavamian, Gibson, Greene, Greene, Gültekin, Hainline, Hopkins, Hopkins, Hutchings, Kay, King, King, King, King, Konigl, Koo, Koo, Lacki, Lacki, Lacki, Levin, Markevitch, McKee, Mihos, Moe, Murray, Murray, Narayan, Ostriker, Paumard, Pounds, Pounds, Proga, Rees, Riquelme, Risaliti, Rupke, Saitoh, Sanders, Sazonov, Sazonov, Sazonov, Schwartz, Scoville, Sijacki, Silk, Silk, Spitzer, Springel, Sturm, Su, Thompson, Thompson, Tombesi, Treister, Tremaine, Tremonti, Tripp, Turnshek, Ulvestad, Veilleux, Weaver, Weymann, Weymann, Wyithe   +100 more
core   +1 more source