Results 51 to 60 of about 8,688,256 (155)

Deep Potential: Recovering the Gravitational Potential and Local Pattern Speed in the Solar Neighborhood with GDR3 Using Normalizing Flows

The Astrophysical Journal
The gravitational potential of the Milky Way encodes information about the distribution of all matter—including dark matter—throughout the Galaxy. Gaia Data Release 3 has revealed a complex structure that necessitates flexible models of the Galactic ...
Taavet Kalda, Gregory M. Green
doaj   +1 more source

Signatures of a Tidally Induced Spiral Arm at the Anticenter of the Milky Way and a Kinematically Extended Anticenter Stream Using DESI Data Release 2

The Astronomical Journal
Using the Dark Energy Spectroscopic Instrument (DESI) Milky Way Survey, we examine the six-dimensional space of the anticenter region of the Milky Way stellar disk (150° < Galactic longitude < 220°) using 61,883 main-sequence turnoff stars.
Mika Lambert, Constance M. Rockosi, Sergey E. Koposov, Ting S. Li, Monica Valluri, Leandro Beraldo e Silva, Songting Li, João A. S. Amarante, Amanda Byström, Gustavo E. Medina, Nathan R. Sandford, Joan Najita, Namitha Kizhuprakkat, Jessica N. Aguilar, Steven Ahlen, Davide Bianchi, David Brooks, Todd Claybaugh, Kyle Dawson, Axel de la Macorra, Peter Doel, Jaime E. Forero-Romero, Enrique Gaztañaga, Satya Gontcho A Gontcho, Gaston Gutierrez, Richard Joyce, Anthony Kremin, Claire Lamman, Martin Landriau, Laurent Le Guillou, Marc Manera, Aaron Meisner, Ramon Miquel, John Moustakas, Adam Myers, Seshadri Nadathur, Will Percival, Francisco Prada, Ignasi Pérez-Ràfols, Graziano Rossi, Eusebio Sanchez, David Schlegel, Michael Schubnell, Joseph H. Silber, David Sprayberry, Gregory Tarlé, Benjamin A. Weaver, Rongpu Zhou, Hu Zou   +48 more
doaj   +1 more source

The Orbital Anisotropy Profile of the Gaia-Sausage/Enceladus Accretion Remnant

The Astrophysical Journal
The Gaia - Sausage/Enceladus (GS/E) accretion remnant is one of the most important stellar populations in the Milky Way halo. Recent simulation-based work has suggested that the anisotropy profiles of remnants like GS/E decline towards the center and may
James M. M. Lane, Jo Bovy
doaj   +1 more source

Modelling the Milky Way Disc [PDF]

, 2012
RAVE, SEGUE and Hipparcos data are used to study the dynamics of stars in the extended solar neighbourhood. The asymmetric drift of thin disc dwarfs is studied as a function of colour and metallicity.
Golubov, Oleksiy
core   +1 more source

Phase Spirals across Galactic Disks. II. Using Large-scale “Macrospirals” in Phase-spiral Amplitude to Derive Perturbation Times

The Astrophysical Journal
Phase-space spirals in the Milky Way disk are a key observable remnant of recent perturbations to the Galaxy. They provide insight into the disk’s potential, dynamical evolution, past interactions, and even substructure.
Kiyan Tavangar, Kathryn V. Johnston, Jason A. S. Hunt, Axel Widmark, Vandana G. Kaushik, Adrian M. Price-Whelan   +5 more
doaj   +1 more source

Milky Way Observatory

, 1998
Set-up shot for Milky Way Video Educational levels: Undergraduate lower division, Undergraduate upper division, Graduate or ...
Alex Kekesi, David Leisawitz, Edgar Russell   +2 more
core  

Observational Constraints of Radial Migration in the Galactic Disk Driven by the Slowing Bar

The Astrophysical Journal Letters
Radial migration is an important dynamical effect that has reshaped the Galactic disk, but its origin has yet to be elucidated. In this work, we present evidence that resonant dragging by the corotation of a decelerating bar could be the main driver of ...
HanYuan Zhang, Vasily Belokurov, N. Wyn Evans, Jason L. Sanders, Yuxi(Lucy) Lu, Chengye Cao, GyuChul Myeong, Adam M. Dillamore, Sarah G. Kane, Zhao-Yu Li   +9 more
doaj   +1 more source

Milky Way Antimatter Plume

, 1998
A flyby of the Milky Way galaxy showing an antimatter plume Educational levels: Undergraduate lower division, Undergraduate upper division, Graduate or ...
Alex Kekesi, David Leisawitz, Edgar Russell   +2 more
core  

The evolution of the Milky Way monitored in the solar neighbourhood

, 2000
To appear in 'Dynamics of Star Clusters and the Milky Way'', eds. S. Deiters et alConsiglio Nazionale delle Ricerche - Biblioteca Centrale - P.le Aldo Moro, 7 Rome; International School for Advanced Studies, Via Beirut, 7 Trieste / CNR - Consiglio ...
Jahreiss, H., Dettbarn, C., Fuchs, B., Wielen, R., International School for Advanced Studies, Trieste (Italy)   +4 more
core  

Synthetic Gaia DR3 Surveys from the FIRE Cosmological Simulations of Milky Way-mass Galaxies

The Astrophysical Journal
The third data release (DR3) of Gaia has provided a fivefold increase in the number of radial velocity measurements of stars, as well as a stark improvement in parallax and proper motion measurements.
Tri Nguyen, Xiaowei Ou, Nondh Panithanpaisal, Nora Shipp, Lina Necib, Robyn Sanderson, Andrew Wetzel   +6 more
doaj   +1 more source