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   Articles with "dwarf galaxy" as a keyword



Kinematic and metallicity properties of the Aquarius dwarf galaxy from FORS2 MXU spectroscopy

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recommendations! Published in 2019 at "Astronomy and Astrophysics"

DOI: 10.1051/0004-6361/201936136

Abstract: Context: Dwarf galaxies found in isolation in the Local Group (LG) are unlikely to have interacted with the large LG spirals, and therefore environmental effects such as tidal and ram-pressure stripping should not be the… read more here.

Keywords: kinematic metallicity; aquarius dwarf; gas; spectroscopy ... See more keywords

Wide Binaries in an Ultra-faint Dwarf Galaxy: Discovery, Population Modeling, and A Nail in the Coffin of Primordial black hole Dark Matter

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recommendations! Published in 2025 at "Publications of the Astronomical Society of the Pacific"

DOI: 10.1088/1538-3873/ae11d2

Abstract: We report the discovery and characterization of a wide binary population in the ultrafaint dwarf galaxy Boötes I using deep JWST/NIRCam imaging. Our sample consists of 52 candidate binaries with projected separations of 7000–16,000 au… read more here.

Keywords: dark matter; wide binaries; dwarf galaxy; population ... See more keywords

Diverse dark matter profiles in fire dwarfs: black holes, cosmic rays and the cusp-core enigma

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recommendations! Published in 2024 at "Monthly Notices of the Royal Astronomical Society"

DOI: 10.1093/mnras/staf778

Abstract: Dwarf galaxies have historically posed challenges to the cold dark matter (CDM) model and, while many of the so-called ‘dwarf galaxy problems’ have been mitigated by incorporating baryonic processes, the observed diversity of dwarf galaxy… read more here.

Keywords: dark matter; dwarf galaxy; feedback; matter ... See more keywords
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The Local Group on FIRE: dwarf galaxy populations across a suite of hydrodynamic simulations

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recommendations! Published in 2019 at "Monthly Notices of the Royal Astronomical Society"

DOI: 10.1093/mnras/stz1317

Abstract: We present a new set of high-resolution hydrodynamic cosmological zoom-in simulations that apply the Feedback In Realistic Environments physics to both Local Group (LG)-like and isolated Milky Way (MW)-like volumes (10 host systems in total… read more here.

Keywords: odot; local group; mass; galaxy populations ... See more keywords

A DECam view of the diffuse dwarf galaxy Crater II: the colour–magnitude diagram

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recommendations! Published in 2019 at "Monthly Notices of the Royal Astronomical Society"

DOI: 10.1093/mnras/stz2826

Abstract: We present a deep Blanco/DECam colour–magnitude diagram (CMD) for the large but very diffuse Milky Way satellite dwarf galaxy Crater II. The CMD shows only old stars with a clearly bifurcated subgiant branch (SGB) that feeds… read more here.

Keywords: crater; galaxy crater; magnitude diagram; colour magnitude ... See more keywords