Results 31 to 40 of about 137,822 (286)

The LWA1 Radio Telescope

, 2013
LWA1 is a new radio telescope operating in the frequency range 10-88 MHz, located in central New Mexico. The telescope consists of 258 pairs of dipole-type antennas whose outputs are individually digitized and formed into beams.
Clarke, T. E., Craig, J., Dowell, J., Ellingson, S. W., Hartman, J., Hicks, B. C., Kassim, N. E., Ray, P. S., Rickard, L. J., Schinzel, F. K., Taylor, G. B., Weiler, K. W., Wolfe, C. N.   +12 more
core   +1 more source

Fermi Large Area Telescope Observations of Misaligned AGN [PDF]

, 2010
Analysis is presented on 15 months of data taken with the Large Area Telescope (LAT) on the Fermi Gamma-ray Space Telescope for 11 non-blazar AGNs, including 7 FRI radio galaxies and 4 FRII radio sources consisting of 2 FRII radio galaxies and 2 steep ...
A. A. Abdo, A. Bouvier, A. Brez, A. Cannon, A. Celotti, A. Chekhtman, A. de Angelis, A. Makeev, A. Morselli, A. Okumura, A. P. Waite, A. Reimer, A. S. Johnson, A. Sander, A. Tramacere, A. W. Borgland, A. W. Chen, Abdo, Abdo, Abdo, Abdo, Abdo, Abdo, Aloy, Attridge, Atwood, B. Berenji, B. L. Winer, B. Lott, Bennett, Burgess, Burgess, Böttcher, Böttcher, C. C. Cheung, C. Cecchi, C. D. Dermer, C. Favuzzi, C. Monte, C. Sgrò, Cheung, Chiaberge, Chiaberge, Chiaberge, D. Bastieri, D. F. Torres, D. Gasparrini, D. Hadasch, D. Horan, D. J. Suson, D. J. Thompson, D. Paneque, D. Parent, D. S. Davis, D. Sanchez, Dermer, E. Bonamente, E. C. Ferrara, E. Cavazzuti, E. Charles, E. D. Bloom, E. do Couto e Silva, E. Hays, E. J. Siskind, E. Nuss, E. Orlando, E. Torresi, F. de Palma, F. Gargano, F. Giordano, F. Longo, F. Loparco, F. Piron, F. W. Stecker, Fanaroff, Finke, G. A. Caliandro, G. Barbiellini, G. Godfrey, G. Jóhannesson, G. M. Madejski, G. Malaguti, G. Migliori, G. Spandre, G. Tosti, Georganopoulos, Giroletti, Grandi, H. F.-W. Sadrozinski, H. Katagiri, H. Takahashi, Hardcastle, Harris, Harris, Hartman, Hartman, I. A. Grenier, I. Nestoras, I. V. Moskalenko, J. B. Thayer, J. Ballet, J. Bregeon, J. Chiang, J. Cohen-Tanugi, J. Conrad, J. D. Scargle, J. E. Grove, J. E. McEnery, J. F. Ormes, J. G. Thayer, J. H. Panetta, J. Kataoka, J. Knödlseder, J. Lande, J. M. Casandjian, J. P. Norris, J. Vandenbroucke, Jackson, K. Bechtol, K. S. Wood, Kataoka, Komatsu, L. Baldini, L. C. Reyes, L. Guillemot, L. Latronico, Laing, Laing, M. Ackermann, M. Ajello, M. Brigida, M. E. Monzani, M. Frailis, M. Giroletti, M. Hayashida, M. Kuss, M. Lemoine-Goumard, M. Llena Garde, M. N. Lovellette, M. N. Mazziotta, M. Naumann-Godo, M. Pepe, M. Persic, M. Pesce-Rollins, M. Razzano, M. Roth, M. S. Jackson, M. S. Strickman, M. Villata, M. Ziegler, Marshall, Mattox, Morganti, Mukherjee, N. Gehrels, N. Giglietto, N. Omodei, N. Vilchez, Neronov, O. Reimer, P. A. Caraveo, P. Bruel, P. D. Smith, P. F. Michelson, P. Fortin, P. Fusco, P. Giommi, P. Grandi, P. L. Nolan, P. Lubrano, P. S. Drell, P. Spinelli, P. Wang, R. A. Cameron, R. Bellazzini, R. Buehler, R. Claus, R. D. Blandford, R. Dubois, R. E. Hughes, R. Rando, S. Buson, S. Carrigan, S. Ciprini, S. Colafrancesco, S. Germani, S. Guiriec, S. J. Fegan, S. Murgia, S. Rainò, S. Razzaque, S.-H. Lee, Sowards-Emmerd, Stawarz, Stawarz, Stawarz, Swain, T. A. Porter, T. Glanzman, T. H. Burnett, T. J. Brandt, T. Kamae, T. L. Usher, T. Mizuno, T. Ohsugi, T. Tanaka, T. Ylinen, V. Pelassa, V. Vasileiou, V. Vitale, W. McConville, W. Mitthumsiri, W. N. Johnson, Wilkinson, Y. Fukazawa, Y. Uchiyama, Z. Yang, Ö. Çelik, Ł. Stawarz   +218 more
core   +4 more sources

On the origin of 140 GHz emission from the 4 July 2012 solar flare [PDF]

, 2016
The sub-THz event observed on the 4 July 2012 with the Bauman Moscow State Technical University Radio Telescope RT-7.5 at 93 and 140~GHz as well as Kislovodsk and Mets\"ahovi radio telescopes, Radio Solar Telescope Network (RSTN), GOES, RHESSI, and SDO ...
Akabane, Alexander S. Morgachev, Alissandrakis, Chertok, Colgan, Correia, Dulk, Eduard P. Kontar, Fleishman, Fleishman, Galina G. Motorina, Giménez de Castro, Hannah, Kaufmann, Kaufmann, Kaufmann, Kontar, Krucker, Lemen, Lin, Lüthi, Müller, Polina V. Strekalova, Priest, Raulin, Raulin, Razin, Razin, Reale, Rozanov, Silva, Smirnova, Trottet, Trottet, Trottet, Valery G. Nagnibeda, Victoria V. Smirnova, White, White, Yuriy T. Tsap   +39 more
core   +2 more sources

Sparse Image Reconstruction for the SPIDER Optical Interferometric Telescope

, 2021
The concept of a recently proposed small-scale interferometric optical imaging device, an instrument known as the Segmented Planar Imaging Detector for Electro-optical Reconnaissance (SPIDER), is of great interest for its possible applications in ...
McEwen, Jason D., Pratley, Luke
core   +1 more source

Commensal observing with the Allen Telescope array: software command and control

, 2010
The Allen Telescope Array (ATA) is a Large-Number-Small-Diameter radio telescope array currently with 42 individual antennas and 5 independent back-end science systems (2 imaging FX correlators and 3 time domain beam formers) located at the Hat Creek ...
Ackermann, Robert, Barott, William C., Gutierrez-Kraybill, Colby, Harp, Gerald, Keating, Garrett K., Kilsdonk, Tom, MacMahon, David, Richards, Jon, Williams, Peter K. G.   +8 more
core   +1 more source

A Conceptual Investigation of a Large Radio Telescope Support Point Number Effect on Its Pointing Accuracy

International Journal of Antennas and Propagation, 2020
The purpose of this paper is to investigate a large radio telescope support point number effect on its pointing accuracy and provide a useful guideline for the large radio telescope design engineer. In a large radio telescope system, the azimuth track is
Song Xue, Kaitong Ma, Congsi Wang, Peiyuan Lian, Yan Wang, Yuefei Yan, Qian Xu, Yuanpeng Zheng, Na Wang   +8 more
doaj   +1 more source

Electrically Tunable Friction: From Sticky to Slippery with Ionic Hydrogels

Advanced Materials, EarlyView.
This work demonstrates electrically tunable friction “from sticky to slippery” using ionic hydrogels, achieving reversible more‐than‐fifty‐fold modulation without liquid lubricants. An electric field extracts a salt‐rich interfacial layer that dramatically reduces friction.
Chenxu Liu, Yuan Yao, Yuanyuan Wang, Qi Zhou, Ziqian Zhao, Chenyu Qiao, Yongxiang Sun, Yonggang Meng, Yu Tian, Hongbo Zeng   +9 more
wiley   +1 more source

THE RT-32 RADIO TELESCOPE CONSTRUCTION BASED ON THE MARK-4B ANTENNA SYSTEM. 3. LOCAL OSCILLATORS AND SELF-NOISE OF THE RECEIVING SYSTEM [PDF]

Radio Physics and Radio Astronomy, 2020
Purpose: High resolution investigation of spectral lines of space sources requires low intrinsic noise of the radio telescope receiving system. It is provided with both input cryogenic amplifiers and low phase noise of local oscillators. To make spectral
O. M. Ulyanov , V. V. Zakharenko, E. A. Alekseev, O. M. Reznichenko, I. O. Kulahin, V. V. Budnikov , V. I. Prisiazhnii , A. V. Poikhalo, V. V. Voytyuk, V. N. Mamarev , V. V. Ozhinskyi, V. P. Vlasenko , V. M. Chmil , I. K. Sunduchkov, M. M. Berdar , V. I. Lebed, M. I. Palamar, A. V. Chaikovskii, Yu. V. Pasternak, M. A. Strembitskii, M. P. Natarov, S. O. Steshenko, V. V. Glamazdin, O. I. Shubnyi, A. O. Kyrylenko, D. Yu. Kulyk   +25 more
doaj   +1 more source

Vision‐Assisted Avocado Harvesting with Aerial Bimanual Manipulation

Advanced Robotics Research, EarlyView.
This work outlines the design and implementation of a bimanual aerial robot that employs visual perception and learning to detect, reach, and harvest avocados. A new gripper and fixer arm assembly is used to harvest avocados, while visual perception enables the detection of avocados and estimation of their position and orientation for determining ...
Zhichao Liu, Jingzong Zhou, Caio Mucchiani, Konstantinos Karydis   +3 more
wiley   +1 more source

Optical Spectra of Radio Planetary Nebulae in the Small Magellanic Cloud [PDF]

Serbian Astronomical Journal, 2008
We present preliminary results from spectral observations of four (4) candidate radio sources co-identified with known planetary nebulae (PNe) in the Small Magellanic Cloud (SMC).
Payne, J. L., Filipović, M. D., Crawford, E. J., De Horta, A. Y., White, G. L., Stootman, F. H.   +5 more
doaj   +3 more sources