3 papers
astro-ph.GA2026
An Energetic Consistency Test for Feedback-Driven Gas Loss in Milky Way Dwarf Satellites
Sena A. Matsui, Tsutomu T. Takeuchi, Suchetha Cooray +1
Dwarf spheroidal galaxies (dSphs) contain little detectable cold gas, but the relative roles of stellar feedback, reionization, and environmental effects in their gas loss remain u…
gr-qc2024
Parametrized-Post-Newtonian Test of Black Hole Spacetime for Galactic Center Massive Black Hole Sgr A*: Formulation and Fitting
Hiromi Saida, Sena A. Matsui, Tsutomu T. Takeuchi +4
We have performed a parametrized post-Newtonian (PPN) test of a black hole spacetime using observational data of the star S0-2/S2 orbiting the massive black hole at our galactic ce…
astro-ph.SR2023
Photometric Observations and Period Analysis of an SU UMa-type Dwarf Nova, MASTER OT J004527.52+503213.8
Sena A. Matsui, Tsutomu T. Takeuchi, Kai T. Kono +1
MASTER OT J004527.52+503213.8 (hereafter MASTER J004527) is a dwarf nova discovered by the MASTER project in 2013. At 18:20 UTC on 24 October 2020, brightening of this object was r…