Results 11 to 20 of about 439,382 (287)
Streams on FIRE: Populations of Detectable Stellar Streams in the Milky Way and FIRE [PDF]
Astrophysical Journal, 2023 We present the first detailed comparison of populations of dwarf galaxy stellar streams in cosmological simulations and the Milky Way. In particular, we compare streams identified around 13 Milky Way analogs in the FIRE-2 simulations to streams observed ...
Nora Shipp +21 more
exaly +7 more sources
Stellar Population Properties in the Stellar Streams around SPRC047
The Astrophysical JournalWe have investigated the properties (e.g., age, metallicity) of the stellar populations of a ringlike tidal stellar stream (or streams) around the edge-on galaxy SPRC047 ( z = 0.031) using spectral energy distribution (SED) fits to ...
Seppo Laine +7 more
doaj +7 more sources
The Southern Stellar Stream Spectroscopic Survey (S5): Chemical Abundances of Seven Stellar Streams [PDF]
The Astronomical Journal, 2021 We present high-resolution Magellan/MIKE spectroscopy of 42 red giant stars in seven stellar streams confirmed by the Southern Stellar Stream Spectroscopic Survey (S5): ATLAS, Aliqa Uma, Chenab, Elqui, Indus, Jhelum, and Phoenix.
Mackey, Dougal +12 more
core +6 more sources
Extragalactic stellar tidal streams: Observations meet simulation [PDF]
Astronomy & AstrophysicsContext. According to the well-established hierarchical framework for galaxy evolution, galaxies grow through mergers with other galaxies. The ΛCDM cosmological model predicts that the stellar halos of massive galaxies are rich in remnants resulting from
Kuijken, Konrad +13 more
core +4 more sources
Streams in the Aquarius stellar haloes [PDF]
Monthly Notices of the Royal Astronomical Society, 2013 We use the very high resolution, fully cosmological simulations from the Aquarius Project, coupled to a semi-analytical model of galaxy formation, to study the phase-space distribution of halo stars in 'solar neighbourhood' like volumes.
Navarro, Julio F. +11 more
core +6 more sources
Effects of chaos on the detectability of stellar streams [PDF]
Monthly Notices of the Royal Astronomical Society, 2019 Observations show that stellar streams originating in satellite dwarf galaxies are frequent in the Universe. While such events are predicted by theory, it is not clear how many of the streams that are generated are washed out afterwards to the point in ...
Mestre, Martín +4 more
core +8 more sources
The Information Content in Cold Stellar Streams [PDF]
The Astrophysical Journal, 2018 Cold stellar streams—produced by tidal disruptions of globular clusters—are long-lived, coherent dynamical features in the halo of the Milky Way. They hold the promise of delivering precise information about the gravitational potential, including ...
Bonaca, A., Hogg, D.
core +4 more sources
Properties of Stellar Streams in the Galactic Disk
Open Astronomy, 2016 Stars of the Sirius, Coma Berenices, Hyades, Pleiades, Wolf 630, Dehnen 6, Dehnen 14, HR 1614, η Cephei, γ Leo streams, the newly identified two subgroups of the Hercules stream, and the streams BB 14, BB 17, BB 20, and BB 21 are selected using the ...
M L Gozha, V A Marsakov
exaly +2 more sources
Inferring Globular Cluster Initial Mass Function from Stellar Streams
The Astrophysical Journal LettersThe Gaia mission has provided precise astrometry and spectrophotometry for billions of stars in the Milky Way, enabling the identification and kinematic characterization of stellar streams. These streams, remnants of disrupted globular clusters and dwarf
Claire S. Ye, Raymond G. Carlberg
doaj +2 more sources
Stellar streams as gravitational experiments [PDF]
Astronomy and Astrophysics, 2018 Kinematically cold tidal streams of globular clusters (GC) are excellent tracers of the Galactic gravitational potential at moderate Galactocentric distances, and can also be used as probes of the law of gravity on Galactic scales.
G. F. Thomas +11 more
core +5 more sources