Results 1 to 10 of about 247,055 (324)
7Li evolution in the thin and thick discs of the Milky Way [PDF]
Monthly Notices of the Royal Astronomical Society, 2018 Recent detection of the isotope $^7$Be (that decays into $^7$Li) in the outburst of classical novae confirms the suggestion made in the 70s that novae could make $^7$Li. We reconsidered the role of novae as producers of Li by means of a detailed model of
G. Cescutti, P. Molaro
semanticscholar +5 more sources
Measuring magnetism in the Milky Way with the Square Kilometre Array [PDF]
, 2015 Magnetic fields in the Milky Way are present on a wide variety of sizes and strengths, influencing many processes in the Galactic ecosystem such as star formation, gas dynamics, jets, and evolution of supernova remnants or pulsar wind nebulae ...
Akahori, Takuya +19 more
core +2 more sources
Chemical Evolution in the Milky Way: Rotation-based Ages for APOGEE-Kepler Cool Dwarf Stars [PDF]
Astrophysical Journal, 2019 We use models of stellar angular momentum evolution to determine ages for ∼500 stars in the APOGEE-Kepler Cool Dwarfs sample. We focus on lower-main-sequence stars, where other age-dating tools become ineffective.
Z. Claytor +7 more
semanticscholar +1 more source
Heavy element evolution in the inner regions of the Milky Way [PDF]
, 2020 We present results for the evolution of the abundances of heavy elements (O, Mg, Al, Si, K, Ca, Cr, Mn, Ni and Fe) in the inner Galactic regions ($R_{GC} < 4$kpc).
F. Matteucci +3 more
semanticscholar +1 more source
The Imprint of Clump Formation at High Redshift. II. The Chemistry of the Bulge
The Astrophysical Journal, 2023 In Paper I, we showed that clumps in high-redshift galaxies, having a high star formation rate density (Σ _SFR ), produce disks with two tracks in the [Fe/H]–[ α /Fe] chemical space, similar to that of the Milky Way’s (MW’s) thin+thick disks.
Victor P. Debattista +13 more
doaj +1 more source
Galactic Halo substructure in the Sloan Digital Sky Survey: the ancient tidal stream from the Sagittarius dwarf galaxy [PDF]
, 2000 Two studies have recently reported the discovery of pronounced Halo substructure in the Sloan Digital Sky Survey (SDSS) commissioning data. Here we show that this Halo substructure is almost in its entirety due to the expected tidal stream torn off the ...
Ibata, Rodrigo +3 more
core +4 more sources
Overview and public data release of the augmented Auriga Project: cosmological simulations of dwarf and Milky Way-mass galaxies [PDF]
Monthly notices of the Royal Astronomical SocietyWe present an extended suite of the Auriga cosmological gravo-magnetohydrodynamical “zoom-in” simulations of 40 Milky Way-mass halos and 26 dwarf galaxy-mass halos run with the moving-mesh code arepo.
R. Grand +6 more
semanticscholar +1 more source
The Astrophysical Journal, 2023 Orbital characteristics based on Gaia Early Data Release 3 astrometric parameters are analyzed for ∼1700 r -process-enhanced (RPE; [Eu/Fe] > +0.3) metal-poor stars ([Fe/H] ≤ −0.8) compiled from the R -Process Alliance, the GALactic Archaeology with ...
Derek Shank +10 more
doaj +1 more source
ATLAS probe: Breakthrough science of galaxy evolution, cosmology, Milky Way, and the Solar System [PDF]
Publications Astronomical Society of Australia, 2018 Astrophysics Telescope for Large Area Spectroscopy Probe is a concept for a National Aeronautics and Space Administration probe-class space mission that will achieve ground-breaking science in the fields of galaxy evolution, cosmology, Milky Way, and the
Yun Wang +47 more
semanticscholar +1 more source
, 2007 The Milky Way is the only galaxy for which we can resolve individual stars at all evolutionary phases, from the Galactic center to the outskirt. The last decade, thanks to the advent of near IR detectors and 8 meter class telescopes, has seen a great ...
Alard +15 more
core +1 more source