Results 1 to 10 of about 28,214 (291)
Dynamics of stellar and HI streams in the Milky Way halo
EPJ Web of Conferences, 2012 Stellar streams are key players in many aspects of Milky Way studies and, in particular, studying their orbital dynamics is crucial for furthering our understanding of the Milky Wayʼs gravitational potential.
Jin S.
doaj +3 more sources
Streams on FIRE: Populations of Detectable Stellar Streams in the Milky Way and FIRE
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 +2 more sources
Stellar streams as gravitational experiments I. The case of Sagittarius [PDF]
Astronomy & Astrophysics, 2017 Tidal streams of disrupting dwarf galaxies orbiting around their host galaxy offer a unique way to constrain the shape of galactic gravitational potentials. Such streams can be used as leaning tower gravitational experiments on galactic scales.
Famaey, Benoit +4 more
core +5 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 +4 more sources
The Information Content in Cold Stellar Streams [PDF]
Astrophysical Journal, 2018 Abstract 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 constraints on the shape of the dark matter halo.
Ana Bonaca, David W Hogg
exaly +4 more sources
Stellar streams in the Gaia era
New Astronomy ReviewsReview article for New Astronomy Reviews (as part of a Special Issue: "Gaia, the first crop of discoveries"). Comments are welcome!
Ana Bonaca, Adrian M Price-Whelan
exaly +3 more sources
Stellar Streams Discovered in the Dark Energy Survey [PDF]
Astrophysical Journal, 2018 Abstract We perform a search for stellar streams around the Milky Way using the first 3 yr of multiband optical imaging data from the Dark Energy Survey (DES). We use DES data covering ∼5000 deg2 to a depth of g > 23.5 with a relative photometric calibration uncertainty of <1%.
A Drlica-Wagner, E Balbinot, T S Li
exaly +7 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 ...
V A Marsakov, M L Gozha
exaly +2 more sources
Variation in the stellar mass function along stellar streams [PDF]
Monthly Notices of the Royal Astronomical Society, 2021 ABSTRACT Stellar streams are the inevitable end product of star cluster evolution, with the properties of a given stream being related to its progenitor. We consider how the dynamical history of a progenitor cluster, as traced by the evolution of its stellar mass function, is reflected in the resultant stream.
Jeremy J Webb, Jo Bovy
openaire +2 more sources
Stellar streams in chameleon gravity [PDF]
Physical Review D, 2020 Theories of gravity that incorporate new scalar degrees of freedom typically require screening mechanisms to ensure consistency with Solar System tests. One widely-studied mechanism -- the chameleon -- can lead to violations of the equivalence principle (EP), as screened and unscreened objects fall differently.
A. P. Naik +4 more
openaire +4 more sources