Results 111 to 120 of about 93,893 (293)

The Highest Redshift Relativistic Jets [PDF]

, 2007
We describe our efforts to understand large-scale (10's-100's kpc) relativistic jet systems through observations of the highest-redshift quasars. Results from a VLA survey search for radio jets in ~30 z>3.4 quasars are described along with new Chandra ...
Cheung, C. C., Gobeille, D., Harris, D. E, Lee, N. P., Schwartz, D. A., Siemiginowska, A., Stawarz, L., Wardle, J. F. C.   +7 more
core   +2 more sources

PolyGraph – Flexible, Biocompatible & Electrically Optimized Graphene‐Polymer Composites for Next‐Generation Neural Interfaces

Advanced Healthcare Materials, EarlyView.
PolyGraph, a flexible graphene‐polycaprolactone nanocomposite, unites conductivity, biocompatibility, and processability for next‐generation neural interfaces. Fabricated into microneedle arrays with ultra‐flexible backings, PolyGraph enables bidirectional neuronal recording and stimulation in brain tissue, advancing brain‐computer interface (BCI) and ...
Jack Maughan, Ian Woods, Cian O'Connor, Pablo Quintana‐Sarti, Eoin Caffrey, Jose M. Munuera, Tian Carey, Adrian Dervan, Alejandro López Valdés, Omar Mamad, Maeve A. Caldwell, Fergal J. O'Brien, Jonathan N. Coleman   +12 more
wiley   +1 more source

Acceleration of Ultra-high-energy Cosmic Rays in the Kiloparsec-scale Jets of Nearby Radio Galaxies

The Astrophysical Journal Letters
Radio galaxies have long been considered as potential sources of ultra-high-energy cosmic rays (UHECRs). Recent analyses of the UHECR spectrum, composition, and arrival directions indicate that the nearest radio galaxy, Centaurus A, could be linked to ...
Jie-Shuang Wang, Brian Reville, Frank M. Rieger, Felix A. Aharonian   +3 more
doaj   +1 more source

Large-scale radio bubbles around the black hole transient V4641 Sgr

Astronomy & Astrophysics
Context. Black holes (BHs) in microquasars can launch powerful relativistic jets that have the capacity to travel up to several parsecs from the compact object and interact with the interstellar medium.
Grollimund N., Corbel S., Fender R., Matthews J. H., Heywood I., Cowie F. J., Hughes A. K., Carotenuto F., Motta S. E., Woudt P.   +9 more
doaj   +1 more source

Deep Chandra and multicolor HST observations of the jets of 3C 371 and PKS 2201+044

, 2007
This paper presents multiwavelength imaging and broad-band spectroscopy of the relativistic jets in the two nearby radio galaxies 3C 371 and PKS 2201+044, acquired with Chandra, HST, VLA, and Merlin. Radio polarization images are also available.
C. C. Cheung, C. Megan Urry, Cavaliere A., Danziger I. J., Davide Donato, F. Tavecchio, Fanaroff B. L., L. Maraschi, Rita M. Sambruna, Shepherd M. C., Stickel M., Veron-Cetty M.-P.   +11 more
core   +1 more source

Mapping Nanoscale Protein‐Corona Kinetics of DoE‐Optimized Perfluorocarbon Encapsulated‐PLGA Nanoparticles by In Situ, Time‐Resolved Synchrotron SAXS

Advanced Healthcare Materials, EarlyView.
A two‐phase workflow (OFAT screening followed by central composite design) maps how processing variables tune PFCE‐PLGA nanoparticle size, dispersity, surface charge, loading, and 19F‐MRI signal. In situ, time‐resolved synchrotron SAXS tracks albumin‐corona growth on intact dispersions and reveals PFCE‐dependent adsorption pathways.
Joice Maria Joseph, Maria Rosa Gigliobianco, Cristina Minnelli, Paolo Moretti, Francesco Spinozzi, Giovanna Mobbili, Sara Pistolesi, Cristina Casadidio, Gabriella Teti, Roberta Censi, Stefano Antonio Gattone, Piera Di Martino   +11 more
wiley   +1 more source

The Origin of X-shaped Radio Galaxies: Clues from the Z-symmetric Secondary Lobes

, 2003
Existing radio images of a few X-shaped radio galaxies reveal Z-symmetric morphologies in their weaker secondary lobes which cannot be naturally explained by either the galactic merger or radio-lobe backflow scenarios, the two dominant models for these X-
Charmandaris V., Fanaroff B., Gopal-Krishna, Gopal-Krishna, , Hogbom J. A., Holloway A. J., Laing R. A., Leahy J. P., Paul J. Wiita, Peter L. Biermann   +9 more
core   +1 more source

Elastomeric Micro‐Balloons for Remote Control of Cerebral Blood Flow and Real‐Time In vivo Imaging of Rodent Brain Response to Hypoperfusion

Advanced Materials, EarlyView.
This study reports the fabrication of MRI‐compatible elastomeric micro‐balloons via a multi‐step bubble casting process, where the monolithic elastomeric wall is selectively stiffened for reversible and controlled inflation and elasticity, depending on the target vessels for graded occlusion of cerebral arteries.
Jong Bin Kim, Jinghui Wang, Yinding Chi, Jingxian Wu, Alicia Ng, Guanda Qiao, Honglin Tan, Miroslaw Janowski, Piotr Walczak, Yajie Liang, Shu Yang   +10 more
wiley   +1 more source

Powerful Outflows of Compact Radio Galaxies

The Astrophysical Journal
Gigahertz peaked spectrum (GPS) and compact steep spectrum (CSS) sources are compact radio galaxies (RGs), with jets extending up to 20 kpc and ages
Bárbara L. Miranda Marques, Alberto Rodríguez-Ardila, Marcos A. Fonseca-Faria, Swayamtrupta Panda   +3 more
doaj   +1 more source

Bent Jets in Radio Quasars [PDF]

Symposium - International Astronomical Union, 1982
How is energy transported out from the central engine in quasars and radio galaxies to the distant radio lobes? This problem has been around since the early discovery of classical double radio sources, and is still not answered in detail. The idea of relativistic beams was first suggested by Martin Rees as a means of transporting plasma out of the ...
openaire   +1 more source