Zobrazeno 1 - 10
of 53
pro vyhledávání: '"Chopo, Ma"'
Autor:
Tobias Nilsson, R. Gaume, Axel Nothnagel, E. Skurikhina, Zinovy Malkin, Patrick Charlot, S. Bolotin, David Gordon, David Mayer, A. de Witt, Johannes Böhm, Sébastien Lambert, O. Titov, Alan L. Fey, Christopher S. Jacobs, E. F. Arias, Robert Heinkelmann, Dan MacMillan, Chopo Ma, Geraldine Bourda
Publikováno v:
Astronomy and Astrophysics-A&A
Astronomy and Astrophysics-A&A, EDP Sciences, 2020, 644, pp.A159. ⟨10.1051/0004-6361/202038368⟩
Astronomy and Astrophysics
Astronomy and Astrophysics-A&A, EDP Sciences, 2020, 644, pp.A159. ⟨10.1051/0004-6361/202038368⟩
Astronomy and Astrophysics
A new realization of the International Celestial Reference Frame (ICRF) is presented based on the work achieved by a working group of the International Astronomical Union (IAU) mandated for this purpose. This new realization, referred to as ICRF3, is
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::821c32215725e1896767e2ac71f1c124
http://hdl.handle.net/20.500.12278/95208
http://hdl.handle.net/20.500.12278/95208
Autor:
Chopo Ma
Publikováno v:
Gayana, Vol 68, Iss 2, Pp 362-364 (2004)
Externí odkaz:
https://doaj.org/article/e4dd73d6312f4b66b29128c310a414bf
Autor:
Alan L. Fey, Alison B. Peck, David Gordon, Chopo Ma, David A. Boboltz, Anthony Beasley, Ralph A. Gaume, Christopher S. Jacobs, Patrick Charlot, Oleg Titov
Publikováno v:
The Astronomical Journal
The Astronomical Journal, American Astronomical Society, 2016, 151 (6), pp.id. 154. ⟨10.3847/0004-6256/151/6/154⟩
The Astronomical Journal, American Astronomical Society, 2016, 151 (6), pp.id. 154. ⟨10.3847/0004-6256/151/6/154⟩
International audience; Six very successful Very Long Baseline Array (VLBA) calibrator survey campaigns were run between 1994 and 2007 to build up a large list of compact radio sources with positions precise enough for use as very long baseline inter
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6286867bb64e48fcfebc95509ec02ba8
https://europepmc.org/articles/PMC6010998/
https://europepmc.org/articles/PMC6010998/
Autor:
Jan Vondrak, Dennis D. McCarthy, Toshio Fukushima, George H. Kaplan, Joseph A. Burns, Zoran Knezevic, Irina I. Kumkova, Daffyd W. Evans, Aleksander Brzezinski, Chopo Ma, Pascale Defraigne, Richard N. Manchester, Sergei A. Klioner, Gerard Petit
Publikováno v:
Proceedings of the International Astronomical Union. 6:107-115
There were four 1.5-hour sessions of Division I business meetings during the XXVIIth IAU General Assembly. The first three were devoted to the reports of Commissions, Working Groups and services associated with the Division, discussion about plans fo
Autor:
Patrick Charlot, L. D. Zhang, David A. Boboltz, B. J. Geldzahler, G. E. Lanyi, Alan L. Fey, Edward B. Fomalont, O. J. Sovers, Christopher S. Jacobs, C. J. Naudet, Chopo Ma, David Gordon, Jonathan D. Romney
Publikováno v:
The Astrophysical Journal
The Astrophysical Journal, American Astronomical Society, 2010, 139 (5), pp.1713-1770. ⟨10.1088/0004-6256/139/5/1713⟩
The Astrophysical Journal, American Astronomical Society, 2010, 139 (5), pp.1713-1770. ⟨10.1088/0004-6256/139/5/1713⟩
We have measured the sub-milli-arcsecond structure of 274 extragalactic sources at 24 and 43 GHz in order to assess their astrometric suitability for use in a high frequency celestial reference frame (CRF). Ten sessions of observations with the Very
Autor:
Michael Heflin, Pascal Willis, Donald F. Argus, Susan Owen, W. Richard Peltier, Chopo Ma, Richard G. Gordon, Richard J. Eanes
Publikováno v:
Geophysical Journal International. 180:913-960
SUMMARY Using space geodetic observations from four techniques (GPS, VLBI, SLR and DORIS), we simultaneously estimate the angular velocities of 11 major plates and the velocity of Earth's centre. We call this set of relative plate angular velocities
Autor:
Chopo Ma, Daniel MacMillan
Publikováno v:
Journal of Geodesy. 81:443-453
The source position time-series for many of the frequently observed radio sources in the NASA geodetic very long baseline interferometry (VLBI) program show systematic linear and non-linear variations of as much as 0.5 mas (milli-arc-seconds) to 1.0
Autor:
Axel Nothnagel, Walter Alef, Jun Amagai, Per Helge Andersen, James Anderson, Tatiana Andreeva, Thomas Artz, Sabine Bachmann, Kyriakos Balidakis, Christophe Barache, Alain Baudry, Erhard Bauernfeind, Karen Baver, Christopher Beaudoin, Dirk Behrend, Antoine Bellanger, Anton Berdnikov, Per Bergman, Simone Bernhart, Alessandra Bertarini, Giuseppe Bianco, Ewald Bielmaier, David Boboltz, Johannes Böhm, Sigrid Böhm, Armin Boer, Sergei Bolotin, Mireille Bougeard, Geraldine Bourda, Sylvain Brazeau, Salvo Buttaccio, Letizia Cannizzaro, Roger Cappallo, Brent Carlson, Merri Sue Carter, Patrick Charlot, Chenyu Chen, Maozheng Chen, Jungho Cho, Thomas Clark, Arnaud Collioud, Francisco Colomer, Giuseppe Colucci, Ludwig Combrinck, John Conway, Brian Corey, Ronald Curtis, Mike Daniels, Reiner Dassing, Maria Davis, Pablo de-Vicente, Aletha De Witt, Alexey Diakov, John Dickey, Christopher Dieck, Irv Diegel, Koichiro Doi, Hermann Drewes, Maurice Dube, Gunnar Elgered, Gerald Engelhardt, Mark Evangelista, Qingyuan Fan, Stephen Farley, Leonid Fedotov, Alan Fey, Ricardo Figueroa, Yoshihiro Fukuzaki, Daniel Gambis, Susana Garcia-Espada, Ralph Gaume, Nicole Geiger, John Gipson, Susanne Glaser, Frank Gomez, Jesus Gomez-Gonzalez, David Gordon, Ramesh Govind, Vadim Gubanov, Sergei Gulyaev, Ruediger Haas, David Hall, Sebastian Halsig, Roger Hammargren, Hayo Hase, R. Heinkelmann, Leif Helldner, Cristian Herrera, Ed Himwich, Thomas Hobiger, Christoph Holst, Xiaoyu Hong, Mareki Honma, Xinyong Huang, Urs Hugentobler, Ryuichi Ichikawa, Andreas Iddink, Johannes Ihde, Gennadiy Ilijin, Roxanne Inniss, Alexander Ipatov, Irina Ipatova, Misao Ishihara, D. V. Ivanov, Chris Jacobs, Takaaki Jike, Karl-Ake Johansson, Heidi Johnson, Kenneth Johnston, Hyunhee Ju, Masao Karasawa, Maria Karbon, Pierre Kaufmann, Ryoji Kawabata, Noriyuki Kawaguchi, Eiji Kawai, Michael Kaydanovsky, Mikhail Kharinov, Hideyuki Kobayashi, Kensuke Kokado, Tetsuro Kondo, Edward Korkin, Yasuhiro Koyama, Hana Krasna, Gerhard Kronschnabl, Sergey Kurdubov, Shinobu Kurihara, Jiro Kuroda, Younghee Kwak, Laura La Porta, Ruth Labelle, Jacques LaFrance, Doug Lamb, Sébastien Lambert, Line Langkaas, Roberto Lanotte, Alexey Lavrov, Karine Le Bail, Judith Leek, Bing Li, Huihua Li, Jinling Li, Liu Li, Shiguang Liang, Michael Lindqvist, Xiang Liu, Michael Loesler, Jim Long, Colin Lonsdale, Jim Lovell, Stephen Lowe, Antonio Lucena, Brian Luzum, Chopo Ma, Jun Ma, Giuseppe Maccaferri, Morito Machida, Dan MacMillan, Matthias Madzak, Zinovy Malkin, Seiji Manabe, Franco Mantovani, Vyacheslav Mardyshkin, Dmitry Marshalov, Geir Mathiassen, Shigeru Matsuzaka, Dennis McCarthy, Alexey Melnikov, Linda Messerschmitt, Andrey Mikhailov, Natalia Miller, Donald Mitchell, Julian Andres Mora-Diaz, Arno Mueskens, Yasuko Mukai, Mauro Nanni, Tim Natusch, Monia Negusini, Alexander Neidhardt, Marisa Nickola, George Nicolson, Arthur Niell, Pavel Nikitin, Tobias Nilsson, Tong Ning, Takashi Nishikawa, Carey Noll, Kentarou Nozawa, Clement Ogaja, Hongjong Oh, Hans Olofsson, Per Erik Opseth, Sandro Orfei, Rosa Pacione, Katherine Pazamickas, Felipe Pedreros, William Petrachenko, Lars Pettersson, Pedro Pino, Lucia Plank, Christian Ploetz, Michael Poirier, Joseph Popelar, Markku Poutanen, Zhihan Qian, Jonathan Quick, Ismail Rahimov, Jay Redmond, Brett Reid, John Reynolds, Bernd Richter, Maria Rioja, Andres Romero-Wolf, Chester Ruszczyk, Alexander Salnikov, Pierguido Sarti, Raimund Schatz, Hans-Georg Scherneck, Francesco Schiavone, Ralf Schmid, Ulrich Schreiber, H. Schuh, Walter Schwarz, Cecilia Sciarretta, Anthony Searle, Mamoru Sekido, Manuela Seitz, Stanislav Shabala, Minghui Shao, Kazuo Shibuya, Fengchun Shu, Moritz Sieber, Asmund Skjaeveland, Elena Skurikhina, Sergey Smolentsev, Dan Smythe, Benedikt Soja, Adeildo Sombra, Don Sousa, Ojars Sovers, John Spitzak, Laura Stanford, Carlo Stanghellini, Alan Steppe, Rich Strand, Jing Sun, Igor Surkis, Kazuhiro Takashima, Kazuhiro Takefuji, Hiroshi Takiguchi, Yoshiaki Tamura, Tadashi Tanabe, Emine Tanir, An Tao, Claudio Tateyama, Kamil Teke, Cynthia Thomas, Volkmar Thorandt, Bruce Thornton, Claudia Tierno Ros, Oleg Titov, Mike Titus, Paolo Tomasi, Vincenza Tornatore, Corrado Trigilio, Dmitriy Trofimov, Masanori Tsutsumi, Gino Tuccari, Tasso Tzioumis, Hideki Ujihara, Dieter Ullrich, Minttu Uunila, Daniel Veillette, Tiziana Venturi, Francesco Vespe, Veniamin Vityazev, Alexandr Volvach, Alexander Vytnov, Guangli Wang, Jinqing Wang, Lingling Wang, Na Wang, Shiqiang Wang, Wenren Wei, Stuart Weston, Alan Whitney, Reiner Wojdziak, Yaroslav Yatskiv, Wenjun Yang, Shuhua Ye, Sangoh Yi, Aili Yusup, Octavio Zapata, Reinhard Zeitlhoefler, Hua Zhang, Ming Zhang, Xiuzhong Zhang, Rongbing Zhao, Weimin Zheng, Ruixian Zhou, Nataliya Zubko
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=dedup_wf_001::43e6244dbd2ac64f7ac36f31b7cab422
https://gfzpublic.gfz-potsdam.de/pubman/item/item_2285891
https://gfzpublic.gfz-potsdam.de/pubman/item/item_2285891
Autor:
Michael R. , Pearlman, Alexander, Ipatov, Frank, Lemoine, James, Long, Chopo, Ma, Stephen, Merkowitz, Ruth, Neilan, Carey, E. Noll, Erricos, Pavlis, Harald, Schuh, Victor, Shargorodsky, David, Stowers, Scott, Wetzel
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=jairo_______::e4f1c5f39313ca6828c46692a5852169
http://id.nii.ac.jp/1291/00010331/
http://id.nii.ac.jp/1291/00010331/
Publikováno v:
Journal of Geodesy. 79:71-81
Time series of daily position solutions at eight co-located GPS and VLBI stations are used to assess the frequency features in the solutions over various time-scales. This study shows that there are seasonal and inter-annual signals in all three coor