Zobrazeno 1 - 10
of 19
pro vyhledávání: '"T. J. Rafferty"'
Autor:
Norbert Zacharias, Jean-Eudes Arlot, Rustem Gumerov, Zhenghong Tang, N. Bazey, William F. van Altena, T. J. Rafferty, Vladimir Rylkov, Jean Souchay, M. Stavinschi, George A. Gontcharov, P. G. Niarchos, Roberto Vieira Martins, Jane L. Russell, Y. Prostyuk, Jose Pereira Osório, A. R. Upgren, T. Pauwels, William Thuillot, A. H. Andrei, M. Luisa Sanchez, A. Pugliano, A. Shulga, Jose L. Muinos Haro, Gennadiy Pinigin, Ramachrisna Teixeira, Marcelo Assafin, Dan Pascu, Jin Wenjing
Publikováno v:
Proceedings of the International Astronomical Union. 4:63-67
At the IAU XXVI General Assembly in 2006, the Division I decided to create the Working Group on Astrometry by Small Ground-Based Telescopes (WG-ASGBT). Its scientic goals are to foster the follow-up of small bodies detected by the large surveys inclu
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::fc708a0e243dddba38d91ecceed8d4b9
https://doi.org/10.1017/s1743921308025313
https://doi.org/10.1017/s1743921308025313
Publikováno v:
The Astronomical Journal. 131:2687-2694
The results of 1683 speckle interferometric observations of double stars, made with the 26 inch (66 cm) refractor of the US Naval Observatory, are presented. Each speckle interferometric observation of a system represents a combination of over 2000 s
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::56e72d3d885e018df3581699351d6c3c
https://doi.org/10.1086/501437
https://doi.org/10.1086/501437
Autor:
T. J. Rafferty, Sean E. Urban, Laura Flagg, William I. Hartkopf, Gary L. Wycoff, Brian D. Mason
Publikováno v:
The Astronomical Journal. 128:3012-3018
The results of 3047 speckle interferometric observations of double stars, made with the 26 inch (66 cm) refractor of the US Naval Observatory, are presented. Each speckle interferometric observation of a system represents a combination of over a thou
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::be6a0a96ee6b0b1170bddc9ae6bc86db
https://doi.org/10.1086/425532
https://doi.org/10.1086/425532
Autor:
Gary L. Wycoff, T. J. Rafferty, Paul Ries, Dan Pascu, E. R. Holdenried, Sean E. Urban, Laura Flagg, William I. Hartkopf, Dean Kang, Brian D. Mason, Greg Hennessy, D. M. Hall
Publikováno v:
The Astronomical Journal. 127:539-548
The results of 3056 speckle interferometric observations of double stars, made with the 26 inch (66 cm) refractor of the US Naval Observatory, are presented. Each speckle interferometric observation of a system represents a combination of over a thou
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::86d4f650c7b4ba45a535b7670dc7c703
https://doi.org/10.1086/379964
https://doi.org/10.1086/379964
Autor:
M. I. Zacharias, A. H. Andrei, Norbert Zacharias, T. J. Rafferty, Marcelo Assafin, D. N. da Silva Neto, R. Vieira Martins
Publikováno v:
The Astronomical Journal. 125:2728-2739
New optical positions on the 30 mas precision level have been obtained for 172 extragalactic International Celestial Reference Frame (ICRF) sources mainly in the range -30° ≤ δ ≤ +25°. Results are presented from a pilot investigation including
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1218626803ce8edc162a927271e4d90a
https://doi.org/10.1086/374630
https://doi.org/10.1086/374630
Autor:
T. J. Rafferty, Greg Hennessy, Gary L. Wycoff, Imants Platais, Dan Pascu, E. R. Holdenried, Sean E. Urban, D. M. Hall, William I. Hartkopf, Brian D. Mason
Publikováno v:
The Astronomical Journal. 124:2254-2272
The results of 2044 speckle interferometric observations of double stars, made with the 26 inch (66 cm) refractor of the US Naval Observatory, are presented. Each speckle interferometric observation of a system represents a combination of over a thou
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::59ddc52c776a18808e00b40aa2a0df83
https://doi.org/10.1086/342545
https://doi.org/10.1086/342545
Autor:
Imants Platais, T. J. Rafferty, Brian L. Pohl, Gary L. Wycoff, Greg Hennessy, William I. Hartkopf, Brian D. Mason, E. R. Holdenried, D. M. Hall, S. E. Urban
Publikováno v:
The Astronomical Journal. 122:1586-1601
The results of 2014 speckle interferometric observations of double stars, made with the 26 inch (66 cm) refractor of the US Naval Observatory, are presented. These observations are averaged into 1266 mean positions and range in separation from 021 to
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::786a5472288105f3fcb128c51364c6c2
https://doi.org/10.1086/322154
https://doi.org/10.1086/322154
Publikováno v:
The Astronomical Journal. 121:3224-3234
The Hipparcos satellite made measurements of over 9734 known double stars, 3406 new double stars, and 11,687 unresolved but possible double stars. The high angular resolution afforded by speckle interferometry makes it an efficient means to confirm t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ed5f3d8adb82e162e5920920d5f1ec50
https://doi.org/10.1086/321096
https://doi.org/10.1086/321096
Autor:
T. J. Rafferty, Tai J. Ragan, Brian D. Mason, Charlie T. Finch, Greg Bredthauer, Eric W. Ferguson, Christopher M. Kilian, G. Wieder, William I. Hartkopf
Publikováno v:
The Astronomical Journal. 153:20
The results of 2408 intensified CCD observations of double stars, made with the 26 inch refractor of the U.S. Naval Observatory, are presented. Each observation of a system represents a combination of over 2000 short-exposure images. These observatio
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1b8a6aea7c7da0e499d655cb74844f49
https://doi.org/10.3847/1538-3881/153/1/20
https://doi.org/10.3847/1538-3881/153/1/20
Autor:
S. E. Urban, L. Winter, T. J. Rafferty, Norbert Zacharias, Gary L. Wycoff, D. M. Hall, E. R. Holdenried, M. E. Germain, David G. Monet, M. I. Zacharias, F. S. Gauss, J. W. Pohlman
Publikováno v:
The Astronomical Journal. 120:2131-2147
The USNO CCD Astrograph (UCA) started an astrometric survey in 1998 February at Cerro Tololo, Chile. This first, preliminary catalog (UCAC1) includes data taken up to 1999 November with about 80% of the Southern Hemisphere covered. Observing continue
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0ebe06628ccbfda7afd5b4965c4a1d07
https://doi.org/10.1086/301563
https://doi.org/10.1086/301563