Results 51 to 60 of about 30,715 (290)

Assembly of the outer Galactic stellar halo in the hierarchical model

, 2010
We provide a set of numerical N-body simulations for studying the formation of the outer Milky Ways's stellar halo through accretion events. After simulating minor mergers of prograde and retrograde orbiting satellite halo with a Dark Matter main halo ...
Adelman-McCarthy, Belokurov, Binney, Boylan-Kolchin, Bullock, Chiba, Curir, Grillmair, Huang, Miceli, Moore, Navarro, Press, White, Yanny, Zolotov   +15 more
core   +1 more source

A mass-dependent density profile for dark matter haloes including the influence of galaxy formation [PDF]

, 2014
We introduce a mass-dependent density profile to describe the distribution of dark matter within galaxies, which takes into account the stellar-to-halo mass dependence of the response of dark matter to baryonic processes.
Aaron A. Dutton, Agertz, Alexander Knebe, Andrea V. Macciò, Arianna Di Cintio, Battaglia, Blumenthal, Brook, Brook, Brook, Bullock, Catena, Chabrier, Chris B. Brook, Cole, de Blok, de Blok, Deason, Del Popolo, Del Popolo, Di Cintio, Di Cintio, Duffy, Dutton, Dutton, Dutton, Dutton, El-Zant, Freyer, Gao, Gill, Gnedin, Goerdt, Goerdt, Governato, Governato, Greg S. Stinson, Guo, Hernquist, Jaffe, Kannan, Kannan, Katz, Kay, Kennicutt, Knollmann, Kuzio de Naray, Kuzio de Naray, Macciò, Macciò, Macciò, Martizzi, Mashchenko, Merritt, Mo, Moore, Moster, Muñoz-Cuartas, Navarro, Navarro, Navarro, Navarro, Nesti, Obreja, Oh, Peñarrubia, Pontzen, Pontzen, Power, Prada, Read, Read, Romano-Díaz, Salucci, Schmidt, Shen, Simon, Spergel, Springel, Stinson, Stinson, Stinson, Teyssier, Tonini, Wadsley, Walker, Zolotov   +86 more
core   +2 more sources

Stellar haloes of simulated Milky-Way-like galaxies: chemical and kinematic properties [PDF]

Monthly Notices of the Royal Astronomical Society, 2013
12 pages, 6 figures. Accepted version.
P. B. Tissera, C. Scannapieco, T. C. Beers, D. Carollo   +3 more
openaire   +3 more sources

The Dichotomy of the Halo of the Milky Way

, 2008
We summarize evidence that the halo of the Milky Way comprises two different, and broadly overlapping, stellar components. The two structures exhibit different chemical compositions, spatial distributions, and kinematics.
Akira Ohnishi, Daniela Carollo, Kiyoshi Kato, Masayuki Y. Fujimoto, Shigeru Kubono, Takaya Nozawa, Takuma Suda, Timothy C. Beers, Toshitaka Kajino   +8 more
core   +1 more source

The Milky Way's stellar halo - lumpy or triaxial?

Journal of Physics: Conference Series, 2006
10 pages, 10 figs, to appear in proceedings of conference "Physics at the end of the Galactic Cosmic Ray Spectrum", Journal of Physics: Conf. series, eds. G.
Newberg, Heidi Jo, Yanny, Brian
openaire   +2 more sources

Are dSph galaxies Galactic building blocks?

EPJ Web of Conferences, 2012
Dwarf spheroidal galaxies (dSph) are frequently assumed to represent surviving examples of a vast now destroyed population of small systems in which many of the stars now forming the Milky Way were formed. Ongoing accretion and considerable sub-structure
Gilmore G., Asiri H.M.
doaj   +1 more source

Group accretion in Milky Way-like stellar haloes

Astronomy & Astrophysics
As galaxies form hierarchically, larger satellites can accrete alongside smaller companions in group infall events. This coordinated accretion is likely to have left signatures in the Milky Way's stellar halo that we can see today. Our goal is to characterise the possible groups of companions that accompanied larger known accretion events of our Galaxy,
Callingham, Thomas M., Helmi, Amina
openaire   +3 more sources

Reliability of the Measured Velocity Anisotropy of the Milky Way Stellar Halo [PDF]

The Astrophysical Journal, 2017
Abstract Determining the velocity distribution of halo stars is essential for estimating the mass of the Milky Way and for inferring its formation history. Since the stellar halo is a dynamically hot system, the velocity distribution of halo stars is well described by the three-dimensional velocity dispersions
Kohei Hattori, Monica Valluri, Sarah R. Loebman, Eric F. Bell   +3 more
openaire   +2 more sources

The Age of the Milky Way Inner Halo

, 2012
The Milky Way galaxy is observed to have multiple components with distinct properties, such as the bulge, disk, and halo. Unraveling the assembly history of these populations provides a powerful test to the theory of galaxy formation and evolution, but ...
A Dotter, A Dotter, A Dotter, A Renzini, A Sarajedini, A Zolotov, AS Font, B Paczyński, BR Oppenheimer, D Carollo, DR Soderblom, E Gates, E-M Pauli, G Wegner, Jason S. Kalirai, JS Kalirai, JS Kalirai, JS Kalirai, JS Kalirai, LR Bedin, M Kilic, P Bergeron, P Jofré, P-E Tremblay, P-E Tremblay, R Napiwotzki, S Moehler, SL Shapiro, TC Beers   +28 more
core   +1 more source

Peptide‐based ligand antagonists block a Vibrio cholerae adhesin

FEBS Letters, EarlyView.
The structure of a peptide‐binding domain of the Vibrio cholerae adhesin FrhA was solved by X‐ray crystallography, revealing how the inhibitory peptide AGYTD binds tightly at its Ca2+‐coordinated pocket. Structure‐guided design incorporating D‐amino acids enhanced binding affinity, providing a foundation for developing anti‐adhesion therapeutics ...
Mingyu Wang, Grace Du, Charity Yongo‐Luwawa, Angelina Lu, Brett Kinrade, Kim Munro, Karl E. Klose, William D. Lubell, Peter Davies, Shuaiqi Guo   +9 more
wiley   +1 more source