Dwarf Galaxies with the Highest Concentration Are Not Thicker than Ordinary Dwarf Galaxies [PDF]
The Astrophysical Journal, 2023 The formation mechanism of high-concentration dwarf galaxies is still a mystery. We perform a comparative study of the intrinsic shape of nearby low-mass galaxies with different stellar concentration.
Lijun Chen +7 more
doaj +4 more sources
Dwarf Galaxies in Voids: Dark Matter Halos and Gas Cooling [PDF]
Advances in Astronomy, 2010 Galaxy surveys have shown that luminous galaxies are mainly distributed in large filaments and galaxy clusters. The remaining large volumes are virtually devoid of luminous galaxies.
Matthias Hoeft, Stefan Gottlöber
doaj +4 more sources
Tidal Dwarf Galaxies and Missing Baryons [PDF]
Advances in Astronomy, 2010 Tidal dwarf galaxies form during the interaction, collision, or merger of massive spiral galaxies. They can resemble “normal” dwarf galaxies in terms of mass, size, and become dwarf satellites orbiting around their massive progenitor.
Frederic Bournaud
doaj +4 more sources
Star formation histories of dwarf galaxies in the FIRE simulations: dependence on mass and Local Group environment [PDF]
Monthly notices of the Royal Astronomical Society, 2019 We study star formation histories (SFHs) of $\simeq500$ dwarf galaxies (stellar mass $M_\ast = 10^5 - 10^9\,M_\odot$) from FIRE-2 cosmological zoom-in simulations.
Boylan-Kolchin, Michael +15 more
core +6 more sources
Bose-Einstein Condensate Dark Matter Halos Confronted with Galactic Rotation Curves [PDF]
Advances in High Energy Physics, 2017 We present a comparative confrontation of both the Bose-Einstein Condensate (BEC) and the Navarro-Frenk-White (NFW) dark halo models with galactic rotation curves.
M. Dwornik +3 more
doaj +4 more sources
Searching for nearby diffuse dwarf galaxies in the COSMOS field [PDF]
Frontiers in Astronomy and Space SciencesIt remains challenging to systematically survey nearby diffuse dwarf galaxies and address the formation mechanism of this population distinguishing from regular ones.
Dong Dong Shi +7 more
doaj +2 more sources
Modelling chemical abundance distributions for dwarf galaxies in the Local Group: the impact of turbulent metal diffusion [PDF]
, 2017 We investigate stellar metallicity distribution functions (MDFs), including Fe and ${\alpha}$-element abundances, in dwarf galaxies from the Feedback in Realistic Environments (FIRE) project.
Escala, Ivanna +8 more
core +5 more sources
The Gas Content and Stripping of Local Group Dwarf Galaxies [PDF]
Astrophysical Journal, 2021 The gas content of the complete compilation of Local Group dwarf galaxies (119 within 2 Mpc) is presented using H i survey data. Within the virial radius of the Milky Way (224 kpc here), 53 of 55 dwarf galaxies are devoid of gas to limits of M H i < 104 ...
M. Putman +6 more
semanticscholar +1 more source
A Sample of Massive Black Holes in Dwarf Galaxies Detected via [Fe x] Coronal Line Emission: Active Galactic Nuclei and/or Tidal Disruption Events [PDF]
Astrophysical Journal, 2021 The massive black hole (BH) population in dwarf galaxies (M BH ≲ 105 M ⊙) can provide strong constraints on the origin of BH seeds. However, traditional optical searches for active galactic nuclei (AGNs) only reliably detect high-accretion, relatively ...
M. Molina +4 more
semanticscholar +1 more source
Hidden AGNs in Dwarf Galaxies Revealed by MaNGA: Light Echoes, Off-nuclear Wanderers, and a New Broad-line AGN [PDF]
Astrophysical Journal, 2020 Active galactic nuclei (AGNs) in dwarf galaxies could host the relics of those early universe seed black holes that did not grow into supermassive black holes. Using MaNGA integral field unit (IFU) spectroscopy we have found a sample of 37 dwarf galaxies
M. Mezcua, H. Domínguez Sánchez
semanticscholar +1 more source