Results 11 to 20 of about 273,575 (267)
Stellar halos and the link to galaxy formation [PDF]
Proceedings of the International Astronomical Union, 2015 AbstractI present a brief overview of how stellar halos may be used to constrain the process of galaxy formation. In particular, streams and substructure in stellar halos trace merger events but can also be used to determine the mass distribution of the host galaxy and hence put constraints on the nature of dark matter.
Helmi, Amina +4 more
openaire +3 more sources
Tracing Galaxy Formation with Stellar Halos. I. Methods [PDF]
Astrophysical Journal, 2005 22 pages, 16 figures, submitted to ...
Kathryn Johnston, James Bullock
exaly +3 more sources
THE GROWTH OF GALAXY STELLAR MASS WITHIN DARK MATTER HALOS [PDF]
Astrophysical Journal, 2012 13 pages, 8 figures, submitted to ...
Idit Zehavi
exaly +4 more sources
The “Building Blocks” of Stellar Halos [PDF]
Galaxies, 2017 The stellar halos of galaxies encode their accretion histories. In particular, the median metallicity of a halo is determined primarily by the mass of the most massive accreted object.
Kyle A. Oman +2 more
doaj +2 more sources
Parametrizing the stellar haloes of galaxies [PDF]
Monthly Notices of the Royal Astronomical Society, 2014 Submitted to MNRAS, 18 pages, 19 ...
D'Souza, R. +3 more
openaire +3 more sources
THE STELLAR HALOS OF MASSIVE ELLIPTICAL GALAXIES [PDF]
The Astrophysical Journal, 2012 To appear in ApJ, 15 pages, 9 ...
Greene, Jenny E. +4 more
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The Stellar Halo of the Galaxy is Tilted and Doubly Broken
The Astronomical Journal, 2022 Abstract Modern Galactic surveys have revealed an ancient merger that dominates the stellar halo of our galaxy (Gaia–Sausage–Enceladus, GSE). Using chemical abundances and kinematics from the H3 Survey, we identify 5559 halo stars from this merger in the radial range r Gal
Jiwon Jesse Han +9 more
openaire +2 more sources
The stellar halo of the Galaxy [PDF]
The Astronomy and Astrophysics Review, 2008 Stellar halos may hold some of the best preserved fossils of the formation history of galaxies. They are a natural product of the merging processes that probably take place during the assembly of a galaxy, and hence may well be the most ubiquitous component of galaxies, independently of their Hubble type.
openaire +3 more sources
Building up the stellar halo of the Galaxy [PDF]
Monthly Notices of the Royal Astronomical Society, 1999 We study numerical simulations of satellite galaxy disruption in a potential resembling that of the Milky Way. Our goal is to assess whether a merger origin for the stellar halo would leave observable fossil structure in the phase-space distribution of nearby stars.
Helmi, A., White, S.
openaire +3 more sources
Tilted Dark Halos Are Common and Long-lived, and Can Warp Galactic Disks
The Astrophysical Journal Letters, 2023 In the Lambda cold dark matter paradigm, the dark halo governs the gravitational potential within which a galaxy can form and evolve. In this Letter we show that the present-day inner ( r < 50 kpc) dark halo can be significantly misaligned with the ...
Jiwon Jesse Han +3 more
doaj +1 more source