Tomoaki Oyama
2 papers · Latest:
Galaxies & Cosmology
East Asian VLBI Network astrometry toward the star-forming region G040.96+02.48 in the Extreme Outer Galaxy
VLBI astrometry of G040.96+02.48 in the Extreme Outer Galaxy reveals its distance, proper motion, and a significant warp in the outer Galactic disk.
2604.23963
Galaxies & CosmologyFull-polarization millimeter wavelength variability of Sagittarius A* during the 2018 EHT campaign
Sgr A* shows distinct millimeter-wave polarization and intensity variability, challenging standard accretion models with new insights from an X-ray flare.
2604.10287
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