497 citations
Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- National Institute of TechnologyJP21 papers
- National Astronomical Observatory of JapanJP13 papers
- Kyoto UniversityJP11 papers
- The University of TokyoJP11 papers
- Institute of Astronomy and Astrophysics, Academia SinicaTW10 papers
- The Graduate University for Advanced Studies, SOKENDAIJP10 papers
- Ehime UniversityJP9 papers
- National Tsing Hua UniversityTW7 papers
- Tohoku UniversityJP7 papers
- Daido UniversityJP6 papers
- Centre National de la Recherche ScientifiqueFR5 papers
- Institute of Space and Astronautical ScienceJP5 papers
3 papers · 2 filters
General formulae for the periapsis shift of a quasi-circular orbit in static spherically symmetric spacetimes and the active gravitational mass density
Tomohiro Harada, Takahisa Igata, Hiromi Saida +1
We study the periapsis shift of a quasi-circular orbit in general static spherically symmetric spacetimes. We derive two formulae in full order with respect to the gravitational fi…
Periapsis shifts in dark matter distribution with a dense core
Takahisa Igata, Yohsuke Takamori
We consider the periapsis shifts in dark matter distribution with a dense core. We model the dark matter distribution as an isotropic gas sphere, the Emden polytropic sphere of ind…
Periapsis shifts in dark matter distribution around a black hole
Takahisa Igata, Tomohiro Harada, Hiromi Saida +1
We consider the periapsis shifts of bound orbits of stars on static clouds around a black hole. The background spacetime is constructed from a Schwarzschild black hole surrounded b…