Results 221 to 230 of about 346,903 (248)
Atacama Large Aperture Submillimeter Telescope (AtLAST) science: Surveying the distant Universe. [PDF]
Open Res Eurvan Kampen E +29 more
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The Stellar Halo of the Galaxy [PDF]
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.
Amina Helmi
exaly +4 more sources
Parametrizing the Stellar Haloes of Galaxies [PDF]
Monthly Notices of the Royal Astronomical Society, 2014 Submitted to MNRAS, 18 pages, 19 ...
Richard Anthony D’Souza +2 more
exaly +4 more sources
The Stellar Halo Metallicity—Luminosity Relationship for Spiral Galaxies [PDF]
Monthly Notices of the Royal Astronomical Society: Letters, 2005 Abstract The stellar haloes of spiral galaxies bear important chemodynamical signatures of galaxy formation. We present here the analysis of 89 semi-cosmological spiral galaxy simulations, spanning ∼4 mag in total galactic luminosity. These simulations sample a wide variety of merging histories and show significant dispersion in halo ...
Daisuke Kawata +2 more
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The Dependence of the Galaxy Stellar-to-Halo Mass Relation on Galaxy Morphology
Monthly Notices of the Royal Astronomical Society, 2020 ABSTRACT We investigate the dependence of the local galaxy stellar-to-halo mass relation (SHMR) on galaxy morphology. We use data from the Sloan Digital Sky Survey (SDSS) data release 7 with morphological classifications from Galaxy Zoo, and compare with the EAGLE cosmological simulation. At fixed halo mass in the mass range $10^{11.7}\!-
Joop Schaye, Camila A Correa
exaly +6 more sources
Direct Detection of Galaxy Stellar Halos: NGC 3957 as a Test Case [PDF]
Astronomy and Astrophysics, 2010 We present a direct detection of the stellar halo of the edge-on S0 galaxy NGC 3957, using ultra-deep VLT/VIMOS V and R images. This is achieved with a sky subtraction strategy based on infrared techniques.
Annette Ferguson +2 more
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The Galaxy and Its Stellar Halo: Insights on Their Formation From a Hybrid Cosmological Approach [PDF]
Monthly Notices of the Royal Astronomical Society, 2008 20 pages, 14 figures. Minor revisions to match version accepted to MNRAS. Version with high-resolution figures available at: http://www.mpa-garching.mpg.de/~lucia/astro-ph/mw_delucia_rev ...
Gabriella de Lucia, Amina Helmi
exaly +5 more sources
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Detecting Stellar Streams in the Halos of Galaxies with Voronoi Tessellations
4th International Symposium on Voronoi Diagrams in Science and Engineering (ISVD 2007), 2007Galaxy formation models oriented towards a ACDM cosmology envision galaxies as being built through the accretion of dwarf galaxies. Such galaxy accretion should appear as tidally-disrupted streams of stars in the halo of the host galaxy. Yet these stellar streams have very low surface brightnesses, making their detection difficult.
Jonathan Sick, Roelof de Jong
openaire +1 more source
2016
In this thesis, we observationally parametrize the average properties of the stellar haloes of galaxies in order to constrain the physics of galaxy formation. By stacking aligned mosaics of a large number of face-on central galaxies from the Sloan Digital Sky Survey (SDSS), we study the properties of the stellar haloes of galaxies as a function of ...
openaire +2 more sources
In this thesis, we observationally parametrize the average properties of the stellar haloes of galaxies in order to constrain the physics of galaxy formation. By stacking aligned mosaics of a large number of face-on central galaxies from the Sloan Digital Sky Survey (SDSS), we study the properties of the stellar haloes of galaxies as a function of ...
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Stellar Halos: Unmasking a Galaxy’s History
2010We present the first results from an ongoing study to characterize the substructure in stellar halos as predicted by semi-analytic galaxy formation models in the context of the Aquarius project. The model stellar halos depict a wealth of substructure: broad overdensities akin those observed around the Milky Way as well as very narrow faint streams ...
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