Zobrazeno 1 - 10
of 937
pro vyhledávání: '"Refracting telescope"'
Autor:
Henok Mawi, Cristian E. Gutiérrez
Publikováno v:
Applied Mathematics & Optimization. 84:1877-1902
A numerical scheme is presented to solve the one source near field refractor problem to arbitrary precision and it is proved that the scheme terminates in a finite number of iterations. The convergence of the algorithm depends upon proving appropriat
Publikováno v:
Annales de l'Institut Henri Poincaré C, Analyse non linéaire. 38:577-600
We establish local C 1 , α estimates for one source near field refractors under structural assumptions on the target, and with no assumptions on the smoothness of the densities.
Autor:
L. G. Romanenko, I. S. Izmailov
Publikováno v:
Astronomy Reports. 65:209-223
We use a modified method of the apparent motion parameters (AMP), in which the initial data from the Gaia DR2 catalog are not only high-precision coordinates, parallaxes, and radial velocities of the components of the studied wide binary stars, but a
Publikováno v:
Astrophysics. 63:511-522
Results are presented from a study of the binary star ADS 7251 (STF 1321) based on a uniform series of observations on the 65-cm refractor at Pulkovo from 1962 through 2018. The errors in the yearly average positions ρ and θ are equal to 0′′.00
Publikováno v:
Astrophysical Bulletin. 75:425-436
—According to the exact positions and proper motions of the three components of the star ADS48 from Gaia DR2, their parallax and radial velocities for the epoch 2015.5 the instantaneous relative positions and motions of the components were determin
Publikováno v:
Astronomische Nachrichten. 341:762-769
Autor:
D. A. Bikulova, A. M. Kulikova, M. Yu. Khovrichev, T. A. Vasil’eva, I. S. Izmailov, N. V. Narizhnaya
Publikováno v:
Solar System Research. 54:344-352
We present the results of the re-reduction of Pulkovo photographic plates with images of Saturn’s major satellites in the Gaia DR2 catalog system (169 plates, 3007 individual positions). Astronegatives were taken with the 26-inch refractor at the P
Publikováno v:
Near Surface Geophysics. 18:205-215
In this work, we describe an experiment concerning global–local full‐waveform inversion, carried out on a P‐wave seismic reflection profile that was acquired at Luni, an archaeological site in Italy. The global full‐waveform inversion makes u
Publikováno v:
Advances in Space Research. 65:1990-2002
Asia-Pacific ground-based Optical Space object Observation System (APOSOS) is an international cooperation project, which is initiated and supported by Asia-Pacific Space Cooperation Organization (APSCO). Currently, APOSOS consists of three Observati
Autor:
R. Basu Thakur, P. A. R. Ade, Mark Halpern, Sarah M. Harrison, S. Fliescher, Howard Hui, A. D. Turner, E. Bullock, E. Karpel, C. Tucker, B. Racine, Bryan Steinbach, S. A. Kernasovskiy, Lorenzo Moncelsi, Mandana Amiri, Victor Buza, T. St. Germaine, H. T. Nguyen, K. L. Thompson, E. M. Leitch, J. R. Cheshire, Chao Zhang, C. L. Kuo, J. J. Bock, H. Boenish, S. Fatigoni, L. Duband, S. R. Hildebrandt, King Tong Lau, E. Young, Roger O'Brient, John M Kovac, Kirit Karkare, Abigail G. Vieregg, Toshiya Namikawa, Zeeshan Ahmed, D. V. Wiebe, R. Schwarz, C. Pryke, Alessandro Schillaci, C. D. Sheehy, E. Yang, Kent D. Irwin, Stefan Richter, R. V. Sudiwala, S. Kefeli, S. Palladino, W. L. K. Wu, J. Cornelison, A. Wandui, Marion Dierickx, Carl D. Reintsema, C. L. Wong, J. Willmert, J. E. Tolan, G. Hall, K. G. Megerian, Gene C. Hilton, Denis Barkats, C. Yu, A. Cukierman, Jake Connors, R. W. Ogburn, J. A. Grayson, M. Crumrine, K. W. Yoon, C. Umilta, A. C. Weber, Colin A. Bischoff, J. Kang, Calvin B. Netterfield, Jeffrey P. Filippini, Ahmed Soliman
Publikováno v:
Journal of Low Temperature Physics. 199:824-832
The BICEP/Keck experiment (BK) is a series of small-aperture refracting telescopes observing degree-scale Cosmic Microwave Background (CMB) polarization from the South Pole in search of a primordial $B$-mode signature. This $B$-mode signal arises fro