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ALMA Imprint of Intergalactic Dark Structures in the Gravitational Lens SDP.81
Kaiki Taro Inoue, Takeo Minezaki, Satoki Matsushita +1
We present an analysis of the ALMA long baseline science verification data of the gravitational lens system SDP.81. We fit the positions of the brightest clumps at redshift z=3.042…
Structural properties of non-spherical dark halos in Milky Way and Andromeda dwarf spheroidal galaxies
Kohei Hayashi, Masashi Chiba
We investigate the non-spherical density structure of dark halos of the dwarf spheroidal (dSph) galaxies in the Milky Way and Andromeda galaxies based on revised axisymmetric mass…
Gas Inflow and Outflow Histories in Disk Galaxies as Revealed from Observations of Distant Star-Forming Galaxies
Daisuke Toyouchi, Masashi Chiba
We investigate gas inflow and outflow histories in Milky Way-like disk galaxies, to get new insights into the baryonic processes in galaxy formation and evolution. For this purpose…
Chemical abundances of giant stars in NGC 5053 and NGC 5634, two globular clusters associated with the Sagittarius dwarf Spheroidal galaxy?
L. Sbordone, L. Monaco, C. Moni Bidin +8
The tidal disruption of the Sagittarius dwarf Spheroidal galaxy (Sgr dSph) is producing the most prominent substructure in the Milky Way (MW) halo, the Sagittarius Stream. Aside fr…
Thirty Meter Telescope International Observatory Detailed Science Case 2024
Warren Skidmore, Bob Kirshner, David Andersen +168
The Thirty Meter Telescope (TMT) International Observatory (TIO) will be a revolutionary leap forward in astronomical observing capabilities, enabling us to address some of the mos…
A common surface-density scale for the Milky Way and Andromeda dwarf satellites as a constraint on dark matter models
Kohei Hayashi, Masashi Chiba
In an attempt to place an explicit constraint on dark matter models, we define and estimate a mean surface density of a dark halo within a radius of maximum circular velocity, whic…