Please use this identifier to cite or link to this item:
http://hdl.handle.net/20.500.12386/28888
Title: | ITA-JPN Broadband VLBI Experiment for Optical Clock Comparison | Authors: | Sekido, M. Takefuji, K. Ujihara, H. Hachisu, H. Nemitz, N. Pizzocaro, M. Clivati, C. Calonico, D. Ido, T. Tsutsumi, M. Kawai, E. Namba, K. Okamoto, Y. Takahashi, R. Komuro, J. Ichikawa, R. Ishijima, H. Bregolin, F. Levi, F. Cantoni, E. Cerretto, G. PERINI, FEDERICO MACCAFERRI, GIUSEPPE NEGUSINI, MONIA RICCI, ROBERTO Mura, Alberto |
Issue Date: | 2019 | Volume: | Proceedings of the 24th European VLBI Group for Geodesy and Astrometry Working Meeting | Editors: | Haas, Rüdiger; García-Espada, Susana; López Fernández, José Antonio | First Page: | 52 | Abstract: | NICT has developed a broadband VLBI (very-long-baseline interferometry) system for intercontinental frequency transfer. After domestic tests in Japan, a 2.4 m diameter VLBI station was exported and installed at Medicina astronomy observatory of INAF in Italy in 2018. We have started VLBI experiments for optical clock comparison on an Italy-Japan intercontinental baseline. Reference signals generated by an ytterbium (Yb) optical lattice clock at INRiM in Torino and by a strontium (Sr) lattice clock at NICT headquarters in Koganei are compared by a series of links, which include a coherent optical fiber link between INRiM and Medicina and intercontinental VLBI observation between Medicina and Koganei. A series of VLBI experiments was performed from Oct. 2018 to Feb. 2019. Yb and Sr lattice clocks were repeatedly operated throughout the same period for frequency comparison. | Conference Name: | 24th European VLBI Group for Geodesy and Astrometry Working Meeting | Conference Place: | Las Palmas de Gran Canaria, Spain | Conference Date: | 17-19 March, 2019 | URI: | http://hdl.handle.net/20.500.12386/28888 | URL: | https://www.sea-astronomia.es/24th-meeting-european-vlbi-group-geodesy-and-astrometry-evga | ISBN: | 978-84-416-5634-5 | Bibcode ADS: | 2019evga.conf...52S | Fulltext: | open |
Appears in Collections: | 3.01 Contributi in Atti di convegno |
Files in This Item:
File | Description | Size | Format | |
---|---|---|---|---|
EVGA2014_Proceedings.pdf | Pdf editoriale | 6.25 MB | Adobe PDF | View/Open |
Page view(s)
66
checked on Mar 21, 2023
Download(s)
17
checked on Mar 21, 2023
Google ScholarTM
Check
Altmetric
Items in DSpace are published in Open Access, unless otherwise indicated.