716 citations · 5.3k across the 91 of their papers we have counts for
93 papers
The Study of Detailed Morphology of Milky Way Dwarf Galaxies: Draco and Boötes I
Kyosuke S. Sato, Masafumi Yagi, Sakurako Okamoto
We present a photometric study of the outer stellar structures of the Milky Way dwarf spheroidal galaxies (dSphs) Draco and Boötes I, using deep wide-field imaging data. The old ma…
ALMA-JELLY II. Constraining the radial profiles of the quenching timescales in ram-pressure-stripped galaxies
Roberto P. Infurna, Matteo Fossati, Alessandro Boselli +21
We investigate the environmental quenching histories and spatial progression of ram-pressure stripping in 11 galaxies in the nearby Coma, Norma, and A1367 clusters. As part of the…
The Extended Stellar Distribution in the Outskirts of the Ursa Minor Dwarf Spheroidal Galaxy
Kyosuke S. Sato, Sakurako Okamoto, Masafumi Yagi +7
We discover an extended distribution of main-sequence (MS) stars along the minor axis of the Ursa Minor (UMi) dwarf spheroidal galaxy (dSph). This study is enabled by deep, wide Su…
ALMA-JELLY I: High Resolution CO(2-1) Observations of Ongoing Ram Pressure Stripping in NGC 4858 Reveal Asymmetrical Gas Tail Formation and Fallback
Harrison J. Souchereau, Jeffrey D. P. Kenney, Pavel Jachym +13
We present new CO(2-1) observations (resolution pc) of the Coma cluster jellyfish galaxy NGC 4858 obtained from the ALMA-JELLY large program. Analyzing this data alon…
The Star Formation and Chemical Evolution Histories of Ursa Minor Dwarf Spheroidal Galaxy
Kyosuke S. Sato, Yutaka Komiyama, Sakurako Okamoto +8
We derive the star formation history (SFH) and chemical evolution history (CEH) of the Ursa Minor (UMi) dwarf spheroidal galaxy (dSph). We detect two distinct stellar populations t…
Spin Parity of Spiral Galaxies IV -- Differential Reddening of Globular Cluster Systems of Nearby Spiral Galaxies
Masanori Iye, Masafumi Yagi
The northwest side of the disk of M31 is known to be the near side because of the differential reddening of globular clusters found from their photographic photometry. This paper r…