Kenji Bekki

Formation of accretion disks around intermediate-mass black holes in ultra-compact dwarf galaxies and nuclear stellar clusters

Sebastian Darr, Kenji Bekki

ABSTRACT Recent observations have found many ultra-compact dwarf galaxies (UCDs) that contain massive black holes (MBHs) typically consisting of $10\mathrm{ -}15{{\ \rm per\ cent}}$ of their total mass, with some as high as $40{{\ \rm per\ cent}}$. However, whether UCDs initially started …

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Formation of globular cluster-rich ultra-diffuse galaxies through mergers

Truman Tapia, Hidenori Matsui, Kenji Bekki, O. Ivy Wong et autres

We use high-resolution, idealized hydrodynamic simulations of gas-rich dwarf-galaxy mergers to test whether such encounters can form ultra-diffuse galaxies (UDGs) with globular cluster (GC) systems. We simulate 1:1 and 1:2 mergers alongside an isolated control model and identify stellar overdensities as GC …

Formation of globular cluster-rich ultra-diffuse galaxies through mergers

Truman Tapia, Hidenori Matsui, Kenji Bekki, O. Ivy Wong et autres

ABSTRACT We use high-resolution, idealized hydrodynamic simulations of gas-rich dwarf-galaxy mergers to test whether such encounters can form ultra-diffuse galaxies (UDGs) with globular cluster (GC) systems. We simulate 1:1 and 1:2 mergers alongside an isolated control model and identify stellar overdensities as …

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Globular cluster formation with multiple stellar populations: A comprehensive overview of a star-cloud interaction scenario

Kenji Bekki, Madeleine McKenzie

We present a new scenario of globular cluster (GC) formation with multiple stellar populations (MPs) in which both the first and second populations (1P and 2P, respectively) of stars form from giant molecular clouds (GMCs) polluted by asymptotic giant branch (AGB) stars …

Globular cluster formation with multiple stellar populations: A comprehensive overview of a star-cloud interaction scenario

Kenji Bekki, Madeleine McKenzie

We present a new scenario of globular cluster (GC) formation with multiple stellar populations (MPs) in which both the first and second populations (1P and 2P, respectively) of stars form from giant molecular clouds (GMCs) polluted by asymptotic giant branch (AGB) stars …

au, us (code pays fourni par la source)

Insights into Jet-Induced Cloud Disruption in NGC 1316: ALMA Reveals a Spatially Extended Molecular Gas

Kana Morokuma-Matsui, Alexander Y. Wagner, F. M. Maccagni, Lauranne Lanz et autres

We present ALMA CO($J=1-0$) observations of a nearby radio galaxy NGC1316 at a 100-pc resolution to investigate the impact of AGN jets on the molecular gas. The molecular gas exhibits complex spatial and kinematic distributions, with broad CO line widths ($>50$ km …

Insights into Jet-Induced Cloud Disruption in NGC 1316: ALMA Reveals a Spatially Extended Molecular Gas

Kana Morokuma-Matsui, Alexander Y. Wagner, Filippo M. Maccagni, Lauranne Lanz et autres

We present ALMA CO($J=1-0$) observations of a nearby radio galaxy NGC1316 at a 100-pc resolution to investigate the impact of AGN jets on the molecular gas. The molecular gas exhibits complex spatial and kinematic distributions, with broad CO line widths ($>50$ km …

FAST and Dark: a catalogue of dark galaxy candidates within 50 Mpc

Marco Monaci, Duncan A Forbes, Jonah S. Gannon, Bärbel S. Koribalski et autres

ABSTRACT Using the first data release of the Five-hundred-meter Aperture Spherical radio Telescope All-Sky H i survey (FASHI), we compile a catalogue of 70 dark galaxy candidates (DGCs) within 50 Mpc. We select DGCs without an identified optical counterpart at a limiting …

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FAST and Dark: A catalogue of Dark Galaxy Candidates within 50 Mpc

Marco Monaci, Duncan A. Forbes, Jonah S. Gannon, Bärbel S. Koribalski et autres

Using the first data release of the Five-hundred-meter Aperture Spherical radio Telescope (FAST) All-Sky HI survey (FASHI), we compile a catalogue of 70 dark galaxy candidates (DGCs) within 50 Mpc. We select DGCs without an identified optical counterpart at a limiting g-band …

FAST and Dark: A catalogue of Dark Galaxy Candidates within 50 Mpc

Marco Monaci, Duncan A. Forbes, Jonah S. Gannon, Bärbel S. Koribalski et autres

Using the first data release of the Five-hundred-meter Aperture Spherical radio Telescope (FAST) All-Sky HI survey (FASHI), we compile a catalogue of 70 dark galaxy candidates (DGCs) within 50 Mpc. We select DGCs without an identified optical counterpart at a limiting g-band …

The VMC survey

Sreepriya Vijayasree, Florian Niederhofer, Maria-Rosa L. Cioni, Lara R. Cullinane et autres

Context. The study of the internal kinematics of galaxies provides insights into their past evolution, current dynamics, and future trajectory. The Large Magellanic Cloud (LMC), as the largest and one of the nearest satellite galaxies of the Milky Way (MW), presents unique …

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The VMC survey

Luca Cioni, N. J. G. Cross, V. Ripepi, L. Girardi et autres

Context. The near-infrared YJKs Visual and Infrared Survey Telescope for Astronomy (VISTA) survey of the Magellanic Clouds (VMC) is complete, along with data from additional programmes contributing to the enhancement of its quality over the original footprints. Aims. This work presents the …

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