Results 21 to 30 of about 43,863 (306)

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

One Novel Distributed Space Telescope With Payload Formation

IEEE Access, 2020
Large aperture space technology is critical for next-step astrophysics missions with high resolution requirement. The distributed telescope has been proven as an appealing solution to break the technical limitation in obtaining large apertures.
Qing Li, Lei Liu, Jun Shen
doaj   +1 more source

Millimeter/Submillimeter VLBI with a Next Generation Large Radio Telescope in the Atacama Desert

Galaxies, 2022
The proposed next generation Event Horizon Telescope (ngEHT) concept envisions the imaging of various astronomical sources on scales of microarcseconds in unprecedented detail with at least two orders of magnitude improvement in the image dynamic ranges ...
Kazunori Akiyama, Jens Kauffmann, Lynn D. Matthews, Kotaro Moriyama, Shoko Koyama, Kazuhiro Hada   +5 more
doaj   +1 more source

The Function of Large Telescopes [PDF]

Science, 1898
n ...
openaire   +2 more sources

Implementation of a laser-truss based telescope metrology system at the Large Binocular Telescope

, 2020
Large ground-based telescopes are prone to perturbations caused by environmental factors that affect the mechanical structure of the telescope that can cause collimation loss and image quality degradation.
Kim, Dae Wook, Choi, Heejoo, Hill, John, Rakich, Andrew, Veillet, Christian, Kuhn, Olga, Rodriguez, Stephanie, Brendel, Trenton   +7 more
core   +1 more source

Status of the Cherenkov Telescope Array Large Size Telescopes [PDF]

Proceedings of The 34th International Cosmic Ray Conference — PoS(ICRC2015), 2016
The Cherenkov Telescope Array (CTA) observatory, will be deployed over two sites in the two hemispheres. Both sites will be equipped with four Large Size Telescopes (LSTs), which are crucial to achieve the science goals of CTA in the 20-200 GeV energy range.
Cortina, J., Teshima, M.
openaire   +2 more sources

A Large Southern Telescope [PDF]

Science, 1892
n ...
openaire   +2 more sources

In-Situ Metrology of Large Segmented Detector Based on Modified Optical Truss

IEEE Photonics Journal, 2023
To precisely map cosmic structures and capture time-domain events, future large survey telescopes will be equipped with segmented detectors that greatly expand their field of view. Segment flatness and assembly accuracy will be essential for them to make
Qichang An, Hanfu Zhang, Xiaoxia Wu, Jianli Wang, Tao Chen, Jingxu Zhang, Hongwen Li   +6 more
doaj   +1 more source

Development of the camera for the large size telescopes of the Cherenkov Telescope Array [PDF]

SPIE Proceedings, 2014
The Large Size Telescopes, LSTs, located at the center of the Cherenkov Telescope Array, CTA, will be sensitive for low energy gamma-rays. The camera on the LST focal plane is optimized to detect low energy events based on a high photon detection efficiency and high speed electronics.
Inome, Y, Ambrosi, G., Awane, Y., Baba, H., Bamba, A., Barceló, M., Barres De Almeida, U., Barrio, J. A., Blanch Bigas, O., Boix, J., Brunetti, L., Carmona, E., Chabanne, E., Chikawa, M., Cho, N., Colin, P., Contreras, J. L., Cortina, J., Dazzi, F., Deangelis, A., Deleglise, G., Delgado, C., Díaz, C., Dubois, F., Fiasson, A., Fink, D., Fouque, N., Freixas, L., Fruck, C., Gadola, A., García, R., Gascón, D., Geffroy, N., Giglietto, N., Giordano, F., Grañena, F., Gunji, S., Hagiwara, R., Hamer, N., Hanabata, Y., Hassan, T., Hatanaka, K., Haubold, T., Hayashida, M., Hermel, R., Herranz, D., Hirotani, K., Hose, J., Hugh, D., Inoue, S., Inoue, Y., Ioka, K., Jablonski, C., Kagaya, M., Katagiri, H., Kataoka, J., Kellermann, H., Kishimoto, T., Knoetig, M., Kodani, K., Kohri, K., Kojima, T., Konno, Y., Koyama, S., Kubo, H., Kushida, J., Lamanna, G., Le Flour, T., López-Moya, M., López, R., Lorenz, E., Majumdar, P., Manalaysay, A., Mariotti, M., Martínez, G., Martinez, M., Masuda, S., Matsuoka, S., Mazin, D., Menzel, U., Miranda, J. M., Mirzoyan, R., Monteiro, I., Moralejo, A., Murase, K., Nagataki, S., Nagayoshi, T., Nakajima, D., Nakamori, T., Nishijima, K., Noda, K., Nozato, A., Ogino, M., Ohira, Y., Ohishi, M., Ohoka, H., Okumura, A., Ono, S., Orito, R., Panazol, J. L., Paneque, D., Paoletti, R., Paredes, J. M., Pauletta, G., Podkladkin, S., Prast, J., Rando, R., Reimann, O., Ribó, M., Rosier-Lees, S., Saito, K., Saito, T., Saito, Y., Sakaki, N., Sakonaka, R., Sanuy, A., Sawada, M., Scalzotto, V., Schultz, S., Schweizer, T., Shibata, T., Shu, S., Sieiro, J., Stamatescu, V., Steiner, S., Straumann, U., Sugawara, R., Tajima, H., Takami, H., Takahashi, M., Tanaka, S., Tanaka, M., Tejedor, L. A., Terada, Y., Teshima, M., Tomono, Y., Totani, T., Toyama, T., Tsubone, Y., Tsuchiya, Y., Tsujimoto, S., Ueno, H., Umehara, K., Umetsu, Y., Vollhardt, A., Wagner, R., Wetteskind, H., Yamamoto, T., Yamazaki, R., Yoshida, A., Yoshida, T., Yoshikoshi, T.   +151 more
openaire   +5 more sources

Commissioning a laser metrology truss for active optics on the Large Binocular Telescope

, 2022
LBTO, in partnership with GMTO, has been developing a laser-truss-based metrology system for the active alignment of telescope main optical components.
Sitarski, B., Choi, H., Schoenell, W., Veillet, C., Kuhn, O., Bec, M., Brendel, T., Rakich, A., Hill, J., Zhang, Y.   +9 more
core   +1 more source