Results 11 to 20 of about 30,917 (286)

Chemical Inhomogeneities in the Milky Way Stellar Halo [PDF]

The Astronomical Journal, 2008
We have compiled a sample of 699 stars from the recent literature with detailed chemical abundance information (spanning -4.2 < [Fe/H] < +0.3), and we compute their space velocities and Galactic orbital parameters.
Allende Prieto, Argast, Beers, Bonifacio, Bonifacio, Carney, Carretta, Chiba, Chiba, Cohen, Cutri, Dinescu, Dinescu, Dinescu, Dinescu, Dinescu, Dinescu, Edvardsson, Farouqi, Frebel, Fulbright, Fulbright, Fulbright, Geisler, Hanson, Helmi, Ian U. Roederer, Iben, Ivans, Kepley, Kerr, Koch, Korn, Lee, Lee, Lee, McCall, McWilliam, Mihalas, Monet, Morrison, Mottini, Newberg, Nissen, Perryman, Piatek, Piatek, Piatek, Piatek, Preston, Pritzl, Prochaska, Qian, Sadakane, Schörck, Shetrone, Shetrone, Siegel, Sneden, Sommer-Larsen, Stephens, Stephens, Tautvaišiene, Tolstoy, Unavane, Urban, Venn, Yoshii, Zacharias, Zacharias   +69 more
core   +2 more sources

Stellar Population Variations in the Milky Way's Stellar Halo [PDF]

The Astronomical Journal, 2010
If the stellar halos of disk galaxies are built up from the disruption of dwarf galaxies, models predict highly structured variations in the stellar populations within these halos.
Abazajian, Bell, Belokurov, Belokurov, Belokurov, Blanton, Brown, Bullock, Bullock, Carney, Chou, Christine Ruhland, Cooper, David W. Hogg, de Jong, Dotter, Dotter, Duffau, Eric F. Bell, Font, Grillmair, Grillmair, Grillmair, Grillmair, Gunn, Gunn, Hans-Walter Rix, Hills, Hogg, Ibata, Ibata, Ibata, Ivezić, Jurić, Kazantzidis, Keller, Kinman, Law, Law, Lupton, Majewski, Martínez-Delgado, McCrea, Newberg, Newberg, Newberg, Niederste-Ostholt, Odenkirchen, Perets, Peñarrubia, Pier, Preston, Richardson, Robertson, Ruhland, Sirko, Smith, Stoughton, Strauss, Tumlinson, Wilhelm, Xiang Xiang Xue, Xue, Yanny   +63 more
core   +4 more sources

Mapping the Milky Way with LAMOST II: the stellar halo [PDF]

Monthly Notices of the Royal Astronomical Society, 2017
The radial number density and flattening of the Milky Way's stellar halo is measured with $\mathrm{5351}$ metal-poor ([Fe/H]$
Cao, Zihuang, Carlin, Jeffrey L., Deng, Li-Cai, Hou, Yonghui, Li, Jing, Liu, Chao, Newberg, Heidi Jo, Wang, Yuefei, Xia, Qi-Ran, Xu, Yan, Xue, Xiang-Xiang, Zhang, Yong   +11 more
core   +2 more sources

Diverse Stellar Haloes in Nearby Milky Way-Mass Disc Galaxies [PDF]

Monthly Notices of the Royal Astronomical Society, 2016
We have examined the resolved stellar populations at large galactocentric distances along the minor axis (from 10 kpc up to between 40 and 75 kpc), with limited major axis coverage, of six nearby highly-inclined Milky Way-mass disc galaxies using HST ...
Bailin, Jeremy, Bell, Eric F., de Jong, Roelof S., Harmsen, Benjamin, Holwerda, Benne W., Monachesi, Antonela, Radburn-Smith, David J.   +6 more
core   +8 more sources

Progenitor Diversity in the Accreted Stellar Halos of Milky Way–like Galaxies

The Astrophysical Journal
Ongoing large stellar spectroscopic surveys of the Milky Way seek to reconstruct the major events in the assembly history of the Galaxy. Chemical and kinematic observations can be used to separate the contributions of different progenitor galaxies to the
Sy-Yun Pu, Andrew P. Cooper, Robert J. J. Grand, Facundo A. Gómez, Antonela Monachesi   +4 more
doaj   +3 more sources

Stellar haloes in Milky-Way mass galaxies: From the inner to the outer haloes [PDF]

Monthly Notices of the Royal Astronomical Society, 2014
We present a comprehensive study of the chemical properties of the stellar haloes of Milky-Way mass galaxies, analysing the transition between the inner to the outer haloes.
Beers, T., Carollo, D., Scannapieco, C., Tissera, P.   +3 more
core   +2 more sources

The cold veil of the Milky Way stellar halo [PDF]

Monthly Notices of the Royal Astronomical Society, 2012
49
Deason, A.J., Belokurov, V., Evans, N.W., Koposov, S.E., Cooke, R.J., Peñarrubia, J., Laporte, C.F.P., Fellhauer, M., Walker, M.G., Olszewski, E.W.   +9 more
openaire   +9 more sources

The kinematic properties of Milky Way stellar halo populations [PDF]

Monthly Notices of the Royal Astronomical Society, 2021
ABSTRACT In the Gaia era, stellar kinematics are extensively used to study Galactic halo stellar populations, to search for halo structures, and to characterize the interface between the halo and hot disc populations. We use distribution function-based models of modern data sets with 6D phase space data to qualitatively describe a ...
James M M Lane, Jo Bovy, J Ted Mackereth
openaire   +2 more sources

Building Blocks of the Milky Way's Stellar Halo [PDF]

Proceedings of the International Astronomical Union, 2015
AbstractWe study the assembly history of the stellar halo of Milky Way-like galaxies using the six high-resolution Aquarius dark matter simulations combined with the Munich-Groningen semi-analytic galaxy formation model. Our goal is to understand the stellar population contents of the building blocks of the Milky Way halo, including their star ...
Oirschot, P. van, Starkenburg, E., Helmi, A., Nelemans, G.A., Bragaglia, A., Arnaboldi, M., Rejkuba, M., Romano, D.   +7 more
openaire   +3 more sources

THE HERCULES SATELLITE: A STELLAR STREAM IN THE MILKY WAY HALO? [PDF]

The Astrophysical Journal, 2010
8 pages, 4 figures, accepted for publication in ...
Martin, Nicolas F., Jin, Shoko
openaire   +3 more sources