CHEMICAL EVOLUTION OF THE GALAXY: THE G-DWARF PROBLEM AND RADIOACTIVE CHRONOLOGY REVISITED TAKING ACCOUNT OF THE THICK DISK [PDF]
, 2001 Thin and Thick disk metallicities overlap, but alpha(Fe) relations differ; there is also a hiatus in time before the first thin-disk stars, with a minimum metallicity [Fe/H] = -0.6. Thus there are two `G-dwarf' problems. We fit metallicity distribution functions (MDFs) for the two disks derived by Wyse & Gilmore (1995) with analytical models (for O
B. E. J. Pagel
openalex +4 more sources
Botanical Extract-Infused Shampoo and Hair Tonic for Hair Loss in Androgenetic Alopecia: A TREND-Compliant, Prospective Single-Arm Preexperimental Study. [PDF]
J Cosmet DermatolABSTRACT Background Androgenetic alopecia (AGA) is the most prevalent form of hair loss, often leading to treatment discontinuation due to the adverse effects and perceived ineffectiveness of conventional treatments. Botanical extracts are gaining attention for their potential benefits in managing AGA with minimal side effects.
Choi DG, Shin WC.
europepmc +2 more sources
Lack of nuclear clusters in dwarf spheroidal galaxies: implications for massive black holes formation and the cusp/core problem [PDF]
Monthly Notices of the Royal Astronomical Society, 2016 12 pages, 14 figures, 4 tables, in press in the ...
Manuel Arca Sedda, R. Capuzzo‐Dolcetta
openalex +4 more sources
Star formation histories of dwarf galaxies from the Colour-Magnitude diagrams of their resolved stellar populations [PDF]
, 2009 In this tutorial paper we summarize how the star formation (SF) history of a galactic region can be derived from the colour-magnitude diagram (CMD) of its resolved stars.
Cignoni, Michele, Tosi, Monica
core +4 more sources
Dwarf Galaxies in Voids: Dark Matter Halos and Gas Cooling [PDF]
, 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.
Gottloeber, Stefan, Hoeft, Matthias
core +3 more sources
Small Dwarf Galaxies Within Larger Dwarfs: Why Some Are Luminous While Most Go Dark [PDF]
, 2008 We consider the possibility that the Magellanic Clouds were the largest members of a group of dwarf galaxies that entered the Milky Way (MW) halo at late times. Seven of the eleven brightest satellites of the MW may have been part of this system.
Alcock +40 more
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, 2018 The isolated elliptical (IE) NGC 7796 is accompanied by an interesting early-type dwarf galaxy, named NGC7796-DW1. It exhibits a tidal tail, very boxy isophotes, and multiple nuclei or regions (A, B, and C) that are bluer than the bulk population of the ...
Gómez, M. +6 more
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Environmental effect on the subhalo abundance -- a solution to the missing dwarf problem
, 2008 Recent high-resolution simulations of the formation of dark-matter halos have shown that the distribution of subhalos is scale-free, in the sense that if scaled by the velocity dispersion of the parent halo, the velocity distribution function of galaxy ...
Fukushige, Toshiyuki +2 more
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Galactic and Cosmic Chemical Evolution with Hypernovae
, 2005 We provide new nucleosynthesis yields depending on metallicity and energy (i.e., (normal supernovae and hypernovae), and show the evolution of heavy element abundances from C to Zn in the solar neighborhood.
Kobayashi, Chiaki
core +1 more source
The Vortex State of Ultralight Dark Matter and the Fornax Timing Problem
UniverseWe investigate the impact of the vortex state of ultralight dark matter (ULDM) on the dynamical friction acting on moving globular clusters. Comparing this force with that for the solitonic ground state, it is shown that the internal structure and ...
Volodymyr Gorkavenko +6 more
doaj +1 more source