33 citations · 271 across the 21 of their papers we have counts for
3 papers · 1 filter
Marginally stable circular orbit of a test body in spherically symmetric and static spacetimes
Toshiaki Ono, Tomohito Suzuki, Naomasa Fushimi +2
We study a marginally stable circular orbit (MSCO) such as the innermost stable circular orbit (ISCO) of a timelike geodesic in any spherically symmetric and static spacetime. It t…
Improving the Moment Approach for Astrometric Binaries: Possible Application to Cygnus X-1
Kei Yamada, Masaki Yamaguchi, Hideki Asada +1
A moment approach for orbit determinations of astrometric binaries from astrometric observations alone has been recently studied for a low signal-to-noise ratio (Iwama et al. 2013,…
Possible altitudinal, latitudinal and directional dependence of relativistic Sagnac effect in Chern-Simons modified gravity
Daiki Kikuchi, Naoya Omoto, Kei Yamada +1
Toward a test of parity violation in a gravity theory, possible effects of Chern-Simons (CS) gravity on an interferometer have been recently discussed. Continuing work initiated in…