From the 1 of 17 papers with an AI index.
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- The University of TokyoJP7 papers
- National Astronomical Observatory of JapanJP6 papers
- Kyoto UniversityJP5 papers
- Center for Astrophysics Harvard & SmithsonianUS4 papers
- Ehime UniversityJP4 papers
- Goddard Space Flight CenterUS4 papers
- Institute of Space and Astronautical ScienceJP4 papers
- International University of KagoshimaJP4 papers
- Nagoya UniversityJP4 papers
- Rikkyo UniversityJP4 papers
- Shizuoka UniversityJP4 papers
- Tohoku UniversityJP4 papers
9 papers · 1 filter
Molecular absorption lines toward the Galactic ISM detected at 89 GHz with VLBI
Keisuke Nakashima, Hiroshi Imai, Youngjoo Yun
As the first step to explore the Galactic foreground interstellar medium (ISM) with high angular resolution, we investigated the detectability of molecular absorption lines with ve…
A differentiable hydrodynamical approach to the Milky Way bar pattern speed with CO longitude--velocity data
Junichi Baba, Kohei Hattori
The paper presents a differentiable hydrodynamical framework that simulates gas flow in the Milky Way’s barred potential and uses CO longitude‑velocity data to constrain the bar’s…
Axisymmetric Jeans modelling systematically overestimates the circular speed in the inner Milky Way
Tomoki Yamaguchi, Junichi Baba
We quantify systematic biases in rotation curves inferred from steady, axisymmetric Jeans modelling when the underlying stellar velocity field is non-axisymmetric. Using a high-res…
A Fast, Hot Wind from a Nuclear Starburst
XRISM Collaboration, Marc Audard, Hisamitsu Awaki +137
Galaxies with intense star formation often host multiphase, galaxy-scale winds powered by supernovae and fast stellar winds. These are strong enough to disrupt the star-forming int…
Bar-Informed Kinematic-Distance Mapping of Molecular Gas in the Inner Milky Way
Junichi Baba
We present a bar-informed kinematic-distance (BIKD) method to reconstruct face-on molecular-gas maps of the inner Milky Way from PPV data, relaxing the standard assumption of axisy…
Galaxy fly-bys sustain bar-halo friction and bar slowdown in disk galaxies
Rumi Kodama, Rimpei Chiba, Tetsuro Asano +2
Bars in disk galaxies slow down as they transfer their angular momentum to their dark matter halo via dynamical friction from near-resonant orbits. This bar-halo dynamical friction…