Results 81 to 90 of about 939,149 (288)

Division B Commission 40: Radio Astronomy

, 2015
IAU Commission 40 for Radio Astronomy (hereafter C40) brought together scientists and engineers who carry out observational and theoretical research in radio astronomy and who develop and operate the ground and space-based radio astronomy facilities and ...
Carilli, Christopher, Justin L. Jonas, Nan, R., Rendong Nan, Rafaella Morganti, Hirabayashi, Hisashi, Taylor, R., Chapman, Jessica M., Morganti, R., Ohishi, M., Jonas, Justin L., Masatoshi Ohishi, Russell Taylor, Giovaninni, Gabriele, Lazio, Joseph, Ronald Ekers, Monica Rubio, Carilli, C., Shastri, Prjaval, Rubio, Monica, Nan, Rendong, Jessica M. Chapman, Kellermann, Ken, Christopher Carilli, Ekers, Ronald, Ken Kellermann, Richard Hills, Ohishi, Masatoshi, Chapman, J., Hisashi Hirabayashi, Morganti, Raffaella, Rubio, M., Hills, Richard, Hills, R., Kellermann, K., Taylor, Russell, Jonas, J., Giovaninni, G., Hirabayashi, H., Gabriele Giovaninni, Lazio, J., Shastri, P., Joseph Lazio, Prjaval Shastri   +43 more
core   +2 more sources

Rapid tactical deployment capability of a transportable optical ground station

Scientific Reports
In this paper we present TeraNet-3 (TN-3), a transportable optical ground station (TOGS) comprising the third node of the TeraNet optical ground station network in development by the University of Western Australia (UWA).
Ayden McCann, Shane Walsh, Nicolas Maron, David Gozzard, Shawn McSorley, Sascha Schediwy   +5 more
doaj   +1 more source

Full-Stokes, Multi-Frequency Radio Polarimetry of Fermi Blazars; Monitoring and Modelling

Galaxies, 2017
The polarised emission from active galactic nuclei (AGN) jets carries information about the physical conditions at the emitting plasma elements, while its temporal evolution probes the physical processes that introduce variability and dynamically modify ...
Emmanouil Angelakis, Ioannis Myserlis, J. Anton Zensus   +2 more
doaj   +1 more source

Division X, XII / Commission 40, 41 / Working Group Radio Astronomy

, 2011
The IAU Working Group on Historical Radio Astronomy (WGHRA) was formed at the 2003 General Assembly of the IAU as a Joint Working Group of Commissions 40 (Radio Astronomy) and 41 (History of Astronomy), in order to: a) assemble a master list of surviving
James Lequeux, Richard Wielebinski, Hugo van Woerden, Wielebinski, Richard, Gurvits, Leonid, Ishiguro, Masato, Wayne Orchiston, Wall, Jasper, Lequeux, James, Rod Davies, Kenneth Kellermann, Jasper Wall, Kellermann, Kenneth, Masato Ishiguro, Govind Swarup, Orchiston, Wayne, Swarup, Govind, Davies, Rod, van Woerden, Hugo, Leonid Gurvits   +19 more
core   +1 more source

Symmetry‐Imposed Selection Rules for Excitations of Nontrivial Plasmonic Topologies

Advanced Science, EarlyView.
A unified group‐theory selection rule governs the excitation of vectorial nearfield topologies across three plasmonic spin states. Derived from first principles, it predicts spin–orbit vortex splitting and multidimensional nested vortices, confirmed by phase‐resolved in situ measurements.
Jie Yang, Pengyi Feng, Fei Han, Weijin Chen, Zhongwei Jin, Jincheng Ni, Yuanjie Yang, Anxue Zhang, Guy A. E. Vandenbosch, Niels Verellen, Ewald Janssens, Jiafu Wang, Benfeng Bai, Cheng‐Wei Qiu, Xuezhi Zheng   +14 more
wiley   +1 more source

Direction-dependent calibration with image-domain gridding

Astronomy & Astrophysics
Aims. Wide-field images made by radio interferometers are invariably affected by direction-dependent systematic effects such as the ionosphere or the beam pattern.
van der Tol Sebastiaan, Yatawatta Sarod, Veenboer Bram, Rafferty David   +3 more
doaj   +1 more source

The invisible universe: the story of radio astronomy

, 2007
Presents the story of radio astronomy, of how radio waves are generated by stars, supernova, quasars, colliding galaxies, and by the very beginnings of the universe itself.
Verschuur, Gerrit L
core   +1 more source

Observation of Magnetic‐Anisotropy Crossover and High‐Temperature Skyrmions in the Dirac Magnet Fe3Ge with a Distorted Kagome Lattice

Advanced Science, EarlyView.
A temperature‐driven magnetic anisotropy crossover is revealed in the Dirac kagome magnet Fe3Ge with a distorted kagome lattice. The transition from easy‐plane to easy‐axis magnetic anisotropy stabilizes robust Bloch‐type skyrmions over an exceptionally wide temperature window of 375–650 K.
Yalei Huang, Xiaowei Lv, Bin Li, Chunqiang Xu, Dhanarajagopal Alltrin, Xiaoxuan Ma, Wanting Yang, Wei Zhou, Xiangzhuo Xing, Wen‐Chin Lin, Raman Sankar, Michael Smidman, Shixun Cao, Dong Qian, Renchao Che, Xiaofeng Xu   +15 more
wiley   +1 more source

Pulsars identified in the LOFAR Two-metre Sky Survey at 144 MHz

Astronomy & Astrophysics
We present the astrometric identification of 80 known radio pulsars as unresolved continuum sources detected at 144 MHz in the second data release of the LOFAR Two-metre Sky Survey (LoTSS DR2), which covers 27% of the northern hemisphere.
Rijkers G. A. C., Bassa C. G., Callingham J. R., Shimwell T.   +3 more
doaj   +1 more source

The Radio JOVE Project - Shoestring Radio Astronomy

, 2010
Radio JOVE is an education and outreach project intended to give students and other interested individuals hands-on experience in learning radio astronomy.
Sky, J., Higgins, C., Greenman, W., Reyes, F., Thieman, J., Flagg, R.   +5 more
core