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ALMA observations of HCN and HCO+ outflows in the merging galaxy NGC 3256
Tomonari Michiyama, Daisuke Iono, Kazimierz Sliwa +7
We report ~2" resolution Atacama Large Millimeter/submillimeter Array observations of the HCN(1-0), HCO+(1-0), CO(1-0), CO(2-1), and CO(3-2) lines towards the nearby merging double…
Galaxy mergers up to z<2.5 I : The star formation properties of merging galaxies at separations 3-15 kpc
Andrea Silva, Danilo Marchesini, John D. Silverman +7
We present a study of the influence of galaxy mergers on star formation at 0.3<z<2.5. Major mergers are selected from the CANDELS/3D-HST catalog using a peak-finding algorithm. Mer…
Molecular gas and Star Formation Properties in Early Stage Mergers: SMA CO(2-1) Observations of the LIRGs NGC 3110 and NGC 232
D. Espada, S. Martin, S. Verley +13
Mergers of galaxies are an important mode for galaxy evolution because they serve as an efficient trigger of powerful starbursts. However, observational studies of the molecular ga…
A gravitationally unstable gas disk of a starburst galaxy 12 billion years ago
Ken-ichi Tadaki, Daisuke Iono, Min S. Yun +18
Submillimeter bright galaxies in the early Universe are vigorously forming stars at ~1000 times higher rate than the Milky Way. A large fraction of stars is formed in the central 1…
A high dust emissivity index beta for a CO-faint galaxy in a filamentary Lyman-alpha nebula at z=3.1
Yuta Kato, Yuichi Matsuda, Daisuke Iono +15
We present CO J=4-3 line and 3 mm dust continuum observations of a 100 kpc-scale filamentary Lyα nebula (SSA22 LAB18) at z=3.1 using the Atacama Large Millimeter/submillimeter Arra…
Spatially-resolved Dense Molecular Gas Excitation in the Nearby LIRG VV 114
Toshiki Saito, Daisuke Iono, Daniel Espada +14
We present high-resolution observations (0".2-1".5) of multiple dense gas tracers, HCN and HCO ( = 1-0, 3-2, and 4-3), HNC ( = 1-0), and CS ( = 7-6) lines, toward the…