Results 41 to 50 of about 199,105 (273)

The Murchison Widefield Array [PDF]

, 2010
It is shown that the excellent Murchison Radio-astronomy Observatory site allows the Murchison Widefield Array to employ a simple RFI blanking scheme and still calibrate visibilities and form images in the FM radio band.
Arcus, W., Benkevitch, L., Bernardi, Gianni, Bowman, J. D., Briggs, F. H., Bunton, J. D., Burns, S., Cappallo, R. J., Clark, Michael A., Corey, B. E., Dal, Kevin, de Oliveira-Costa, A., Derome, M. F., Desouza, L., Doeleman, S. S., Edgar, Richard G., Emrich, D., Gleadow, Stewart J., Glossop, M., Goeke, R., Greenhill, Lincoln J., Hazelton, B., Herne, D. E., Hewitt, J. N., Kamini, P. A., Kaplan, D. L., Kasper, J. C., Kincaid, B. B., Kocz, J., Kowald, E., Kratzenberg, E., Krishna, M. R. Gopala, Kumar, D., Lonsdale, C. J., Lynch, M. J., Madhavi, S., Matejek, M., McWhirter, S. R., Mitchell, Daniel A., Morales, M. F., Morgan, E., Oberoi, D., Ord, Stephen M., Pathikulangara, J., Pfister, Hanspeter, Prabu, T., Rogers, A., Salah, J. E., Sault, R. J., Shankar, N. Udaya, Srivani, K. S., Stevens, J., Tingay, S. J., Vaccarella, A., Waterson, M., Wayth, Randall B., Webster, R. L., Whitney, A. R., Williams, A., Williams, C.   +59 more
core   +1 more source

Utilization of photon orbital angular momentum in the low-frequency radio domain [PDF]

, 2007
We show numerically that vector antenna arrays can generate radio beams which exhibit spin and orbital angular momentum characteristics similar to those of helical Laguerre-Gauss laser beams in paraxial optics.
A. E. Siegman, B. Thidé, B. Thidé, C. Cohen-Tannoudji, E. Noether, G. A. Swartzlander, Jr., H. Then, J. Bergman, J. Schwinger, J. Sjöholm, K. Palmer, M. Ribarič, M. V. Berry, N. H. Ibragimov, R. Khamitova, S. H. Krishnamurthy, T. D. Carozzi, Ya. N. Istomin   +17 more
core   +3 more sources

Halide‐Dependent Photoluminescence and Heavy‐Atom Effects in Low‐Melting Organic–Inorganic Manganese Halides

Advanced Functional Materials, EarlyView.
Two pyridinium‐based ionic liquid templated hybrid manganese halides, (C4Py)2[MnCl4] and (C4Py)2[MnBr4], display similar bulk structures but show significantly different photoluminescence behaviors due to the bromine heavy‐atom effect. Their stable local Mn environments remain intact even in the molten state, allowing applications such as luminescence ...
Biswajit Bhattacharyya, Christian Balischewski, Jiyong Kim, Tiago Duarte, Lianshe Fu, Rute A.S. Ferreira, Alkit Beqiraj, Iuliia Mikulska, Diego Gianolio, Eric Sperlich, Felix Stete, Wouter Koopman, Christina Günter, Katlen Brennenstuhl, Daniel Van Opdenbosch, Cordt Zollfrank, Armin Wedel, Beth J. Murray, Małgorzata Swadźba‐Kwaśny, Tillmann Klamroth, Michael U. Kumke, Verónica de Zea Bermudez, Andreas Taubert   +22 more
wiley   +1 more source

The beamformer and correlator for the Large European Array for Pulsars [PDF]

, 2017
The Large European Array for Pulsars combines Europe's largest radio telescopes to form a tied-array telescope that provides high signal-to-noise observations of millisecond pulsars (MSPs) with the objective to increase the sensitivity of detecting low ...
Bassa, C. G., Janssen, G. H., Karuppusamy, R., Kramer, M., Lee, K. J., Liu, K., McKee, J., Perrodin, D., Purver, M., Sanidas, S., Smits, R., Stappers, B. W., Zhu, W. W.   +12 more
core   +6 more sources

Elucidating the Role of Surface Ligands on the Oxidative Etching of Au Bipyramids During Photothermia Using Liquid Cell Transmission Electron Microscopy

Advanced Functional Materials, EarlyView.
Gold bipyramids can act as efficient plasmonic nanoheaters, but they often reshape during laser heating. This study shows that oxygen nanobubbles drive oxidative etching and that surface ligands control stability. CTAB‐ and citrate‐coated particles blunt and lose optical performance, whereas polystyrene sulfonate preserves shape and heating by ...
Irene López‐Sicilia, Valentina Girelli Consolaro, Sophie Marbach, Nancy Rahbany, Grégoire Petit, Ovidiu Ersen, Juan J. Giner‐Casares, Ali Abou‐Hassan   +7 more
wiley   +1 more source

Asclepias - Capturing Software Citations In Astronomy

, 2017
Long abstract for talk given at Metrics workshop at the 2017 Annual Meeting of the Association for Information Science and Technology (ASIS&T). Abstract: There is general agreement that curating and preserving software products, and making them citable, are worthwhile efforts, as is linking software products with publications, in order to ...
Henneken, Edwin, Accomazzi, Alberto, Blanco-Cuaresma, Sergi, Muench, August, Nielsen, Lars Holm   +4 more
openaire   +1 more source

Open high-level data formats and software for gamma-ray astronomy [PDF]

AIP Conference Proceedings, 2017
In gamma-ray astronomy, a variety of data formats and proprietary software have been traditionally used, often developed for one specific mission or experiment. Especially for ground-based imaging atmospheric Cherenkov telescopes (IACTs), data and software are mostly private to the collaborations operating the telescopes.
Deil, Christoph, Boisson, Catherine, Kosack, Karl, Perkins, Jeremy, King, Johannes, Eger, Peter, Mayer, Michael, Wood, Matthew, Zabalza, Victor, Knödlseder, Jürgen, Hassan, Tarek, Mohrmann, Lars, Ziegler, Alexander, Khelifi, Bruno, Dorner, Daniela, Maier, Gernot, Pedaletti, Giovanna, Rosado, Jaime, Contreras, José Luis, Lefaucheur, Julien, Brügge, Kai, Servillat, Mathieu, Terrier, Régis, Walter, Roland, Lombardi, Saverio   +24 more
openaire   +7 more sources

Astrophysical Supercomputing with GPUs: Critical Decisions for Early Adopters [PDF]

, 2010
General purpose computing on graphics processing units (GPGPU) is dramatically changing the landscape of high performance computing in astronomy. In this paper, we identify and investigate several key decision areas, with a goal of simplyfing the early ...
Amr H. Hassan, Barsdell, Benjamin R. Barsdell, Christopher J. Fluke, David G. Barnes, Harris, Kirk, Larus, Nyland, Schaaf, Wayth   +10 more
core   +2 more sources

Artificial Intelligence‐Assisted Workflow for Transmission Electron Microscopy: From Data Analysis Automation to Materials Knowledge Unveiling

Advanced Materials, EarlyView.
AI‐Assisted Workflow for (Scanning) Transmission Electron Microscopy: From Data Analysis Automation to Materials Knowledge Unveiling. Abstract (Scanning) transmission electron microscopy ((S)TEM) has significantly advanced materials science but faces challenges in correlating precise atomic structure information with the functional properties of ...
Marc Botifoll, Ivan Pinto‐Huguet, Enzo Rotunno, Thomas Galvani, Catalina Coll, Payam Habibzadeh Kavkani, Maria Chiara Spadaro, Yann‐Michel Niquet, Martin Børstad Eriksen, Sara Martí‐Sánchez, Georgios Katsaros, Giordano Scappucci, Peter Krogstrup, Giovanni Isella, Andreu Cabot, Gonzalo Merino, Pablo Ordejón, Stephan Roche, Vincenzo Grillo, Jordi Arbiol   +19 more
wiley   +1 more source

Firmamento: A Multimessenger Astronomy Tool for Citizen and Professional Scientists

The Astronomical Journal
Firmamento ( https://firmamento.hosting.nyu.edu ) is a new-concept, web-based, and mobile-friendly data analysis tool dedicated to multifrequency/multimessenger emitters, as exemplified by blazars.
Dhurba Tripathi, Paolo Giommi, Adriano Di Giovanni, Rawdha R. Almansoori, Nouf Al Hamly, Francesco Arneodo, Andrea V. Macciò, Goffredo Puccetti, Ulisses Barres de Almeida, Carlos Brandt, Simonetta Di Pippo, Michele Doro, Davit Israyelyan, A. M. T. Pollock, Narek Sahakyan   +14 more
doaj   +1 more source