Results 131 to 140 of about 200,659 (240)

All-sky Kinematics of the Distant Halo: The Reflex Response to the LMC

The Astrophysical Journal
The infall of the Large Magellanic Cloud (LMC) is predicted to displace the inner Milky Way (MW), imprinting an apparent “reflex motion” on the observed velocities of distant halo stars. We construct the largest all-sky spectroscopic data set of luminous
Vedant Chandra, Rohan P. Naidu, Charlie Conroy, Nicolas Garavito-Camargo, Chervin Laporte, Ana Bonaca, Phillip A. Cargile, Emily Cunningham, Jiwon Jesse Han, Benjamin D. Johnson, Hans-Walter Rix, Yuan-Sen Ting, Rebecca Woody, Dennis Zaritsky   +13 more
doaj   +1 more source

Flipping of the Tidal Tails of the Ophiuchus Stream due to the Decelerating Galactic Bar

The Astrophysical Journal
The Ophiuchus stellar stream presents a puzzle due to its complicated morphology, with a substructure perpendicular to the main track (spur), a broadened tail (fanning), and a shorter than expected angular extent given its old stellar population and ...
Yong Yang, Geraint F. Lewis, Denis Erkal, Ting S. Li, Andrew P. Li, Sarah L. Martell, Lara R. Cullinane, Guilherme Limberg, Daniel B. Zucker, Joss Bland-Hawthorn, Andrew B. Pace, Gary S. Da Costa, Alexander P. Ji, Sergey E. Koposov, Kyler Kuehn, Nora Shipp, Miles Pearson, Sam A. Usman, S5 Collaboration   +18 more
doaj   +1 more source

Tracing Red Giant Members of the Globular Cluster Palomar 5 with APOGEE and Gaia

The Astrophysical Journal
The globular cluster Palomar 5 (Pal 5) is in the process of being tidally shredded as it orbits the Milky Way. Its core is currently at a heliocentric distance of ∼21 kpc, near apogalacticon (∼18 kpc), and it reaches ∼5–7 kpc at perigalacticon.
Allyson A. Sheffield, Sarah Pearson, Lenin F. Nolasco, Rachael L. Beaton, Adrian M. Price-Whelan, Rafael Guerço, Katia Cunha, Verne V. Smith   +7 more
doaj   +1 more source

3D self-consistent N-body barred models of the Milky Way: I. Stellar dynamics

, 1997
R. Fux
openalex   +2 more sources

On The Dynamics Of The Milky Way And Its Satellites In The Gaia Era

, 2017
We live in a new era in Astrophysics driven by the launch of the European satellite Gaia. Gaia is currently mapping our Galaxy by measuring distances and motions of one billion stars with exquisite accuracy and unprecedented detail. It is fair to say that the impact of this space mission on our understanding of galaxy evolution and dynamics will be ...
openaire   +2 more sources

The Face-on View of the Milky Way: Gas Dynamics in the COBE NIR Bulge and Disk

, 1998
P. Englmaier, Ortwin Gerhard
openalex   +2 more sources

Mapping dark matter in the Milky Way, a synopsis

, 2015
Mapping the dark matter distribution across our Galaxy represents a central challenge for the near future as a new generation of space-borne and ground-based astronomical surveys swiftly comes online.
Iocco, Fabio, Pato, Miguel
core  

Local Group timing in Milgromian dynamics. A past Milky Way-Andromeda encounter at z>0.8 [PDF]

, 2013
Hongsheng Zhao, Benoît Famaey, Fabian Lüghausen, Pavel Kroupa   +3 more
openalex   +1 more source

Semianalytic Modeling of Dark Matter Subhalo Encounters with Thin Stellar Streams: Statistical Predictions for GD-1-like Streams in Cold Dark Matter

The Astrophysical Journal
Stellar streams from disrupted globular clusters are dynamically cold structures that are sensitive to perturbations from dark matter subhalos, allowing them in principle to trace the dark matter substructure in the Milky Way.
Duncan K. Adams, Aditya Parikh, Oren Slone, Rouven Essig, Manoj Kaplinghat, Adrian M. Price-Whelan   +5 more
doaj   +1 more source

Structure and Dynamics of the Milky Way: an Astro2010 Science White Paper

, 2009
M. J. Reid, K. M. Menten, A. Brunthaler, G. Moellenbrock   +3 more
openalex   +2 more sources