245 citations
- The University of TokyoJP2 papers
- Chalmers University of TechnologySE1 paper
- Gifu UniversityJP1 paper
- Ibaraki UniversityJP1 paper
- Institute of Space and Astronautical ScienceJP1 paper
- Japan Aerospace Exploration AgencyJP1 paper
- Japan Science and Technology AgencyJP1 paper
- National Astronomical Observatory of JapanJP1 paper
- National Institute of Information and Communications TechnologyJP1 paper
- RIKENJP1 paper
- RIKEN Center for Advanced PhotonicsJP1 paper
- TU WienAT1 paper
3 papers
physics.geo-ph2020★ 13 cited
Observing UT1-UTC with VGOS
Rüdiger Haas, Eskil Varenius, Saho Matsumoto +1
We present first results of UT1-UTC determinations using the VLBI Global Observing System (VGOS). During December 2019 through February 2020 a series of 1~hour long observing sessi…
physics.atom-ph2016★ 245 cited
Real-time geopotentiometry with synchronously linked optical lattice clocks
Tetsushi Takano, Masao Takamoto, Ichiro Ushijima +7
According to the Einstein's theory of relativity, the passage of time changes in a gravitational field. On earth, raising a clock by one centimetre increases its tick rate by 1.1 p…
astro-ph.GA2014★ 12 cited
No Microwave Flare of Sagittarius A* around the G2 Periastron Passing
Masato Tsuboi, Yoshiharu Asaki, Osamu Kameya +11
In order to explore any change caused by the G2 cloud approaching, we have monitored the flux density of Sgr A* at 22 GHz from Feb. 2013 to Aug. 2014 with a sub-array of Japanese V…