Gaia-DR2 extended kinematical maps

@article{LpezCorredoira2020GaiaDR2EK,
  title={Gaia-DR2 extended kinematical maps},
  author={M. L{\'o}pez-Corredoira and Francisco Garz{\'o}n and H.-F. Wang and Francesco Sylos Labini and Roman Nagy and Ž. Chrob{\'a}kov{\'a} and J. Chang and Beatriz Villarroel},
  journal={arXiv: Astrophysics of Galaxies},
  year={2020}
}
Context: In our Paper I, by using statistical deconvolution methods, extended kinematics maps of Gaia-DR2 data have been produced in a range of heliocentric distances that are a factor of two to three larger than those analyzed previously by the Gaia Collaboration with the same data. It added the range of Galactocentric distances between 13 kpc and 20 kpc to the previous maps. Aims: Here, we investigate the dynamical effects produced by different mechanisms that can explain the radial and… Expand
Gaia Early Data Release 3
Aims. We aim to demonstrate the scientific potential of the Gaia Early Data Release 3 (EDR3) for the study of different aspects of the Milky Way structure and evolution and we provide, at the sameExpand
A Case against a Significant Detection of Precession in the Galactic Warp
Recent studies of warp kinematics using Gaia DR2 data have produced detections of warp precession for the first time, which greatly exceeds theoretical predictions of models. However, this detectionExpand
Vertical Structure of Galactic Disk Kinematics from LAMOST K Giants
We examine the vertical structure of Galactic disk kinematics over a Galactocentric radial distance range of R = 5–15 kpc and up to 3 kpc away from the Galactic plane, using the K-type giantsExpand
Dark matter local density determination: recent observations and future prospects
TLDR
The growing evidence for local disequilibrium and broken symmetries in the present configuration of the Milky Way, as well as uncertainties associated with the galactic distribution of baryons are reviewed. Expand
Structure of the outer Galactic disc with Gaia DR2
AIMS. We calculate the stellar density using star counts obtained from Gaia DR2 up to a Galactocentric distance R=20 kpc with a deconvolution technique for the parallax errors. Then we analyse theExpand
The Flare and Warp of the Young Stellar Disk Traced with LAMOST DR5 OB-type Stars
We present an analysis of the spatial density structure for the outer disk from 8–14 kpc with the LAMOST DR5 13,534 OB-type stars and observe similar flaring on the north and south sides of theExpand
A revised view of the Canis Major stellar overdensity with DECam and Gaia: new evidence of a stellar warp of blue stars
We present DECam imaging combined with Gaia DR2 data to study the Canis Major overdensity. The presence of the so-called Blue Plume stars in a low-pollution area of the color-magnitude diagram allowsExpand
Diagonal Ridge Pattern of Different Age Populations Found in Gaia-DR2 with LAMOST Main-sequence Turnoff and OB-type Stars
We revisit the diagonal ridge feature (diagonal distributions in the $R, v_{\phi}$ plane) found in $Gaia$ and present timing analysis for it between Galactocentric distances of $R=7.5$ and 12 \,kpc,Expand
Evidence of a dynamically evolving Galactic warp
In a cosmological setting, the disk of a galaxy is expected to continuously experience gravitational torques and perturbations from a variety of sources, which can cause the disk to wobble, flare andExpand
Exploring the Galactic Warp through Asymmetries in the Kinematics of the Galactic Disk
Previous analyses of large databases of Milky Way stars have revealed the stellar disk of our Galaxy to be warped and that this imparts a strong signature on the kinematics of stars beyond the solarExpand
...
1
2
...

References

SHOWING 1-10 OF 70 REFERENCES
Gaia-DR2 extended kinematical maps
Context. The Gaia Collaboration has used Gaia-DR2 sources with six-dimensional (6D) phase space information to derive kinematical maps within 5 kpc of the Sun, which is a reachable range for starsExpand
Kinematics with Gaia DR2: the force of a dwarf
We use Gaia DR2 astrometric and line-of-sight velocity information combined with two sets of distances obtained with a Bayesian inference method to study the 3D velocity distribution in the MilkyExpand
Gaia kinematics reveal a complex lopsided and twisted Galactic disc warp
Context. There are few warp kinematic models of the Galaxy able to characterise both structure and kinematics, since these require high accuracy at large distances. These models are necessary to shedExpand
The Galactic warp revealed by Gaia DR2 kinematics
Using Gaia DR2 astrometry, we map the kinematic signature of the Galactic stellar warp out to a distance of 7 kpc from the Sun. Combining Gaia DR2 and 2MASS photometry, we identify, via aExpand
Mapping the Galactic disc with the LAMOST and Gaia red clump sample: II. 3D asymmetrical kinematics of mono-age populations in the disc between 6–14  kpc
We perform analysis of the 3D kinematics of Milky Way disc stars in mono-age populations. We focus on stars between Galactocentric distances of R = 6 and 14  kpc, selected from the combined LAMOSTExpand
Vertical velocities from proper motions of red clump giants
Aims. We derive the vertical velocities of disk stars in the range of Galactocentric radii of R = 5−16 kpc within 2 kpc in height from the Galactic plane. This kinematic information is connected toExpand
A guided map to the spiral arms in the galactic disk of the Milky Way
Abstract An up-to-date overview of the recent history is given, aiming is to present a helpful working guide to the literature and at the same time introduce key systems and observational results,Expand
Detection of a radial velocity gradient in the extended local disc with RAVE
Using a sample of 213 713 stars from the Radial Velocity Experiment (RAVE) survey, limited to a distance of 2 kpc from the Sun and to |z| rsim 3 km s-1 kpc-1, where K and C are the Oort constantsExpand
Modelling the Galactic disc: perturbed distribution functions in the presence of spiral arms
Starting from an axisymmetric equilibrium distribution function (DF) in action space, representing a Milky Way thin disc stellar population, we use the linearized Boltzmann equation to explicitlyExpand
Transient spiral structure and the disc velocity substructure in Gaia DR2
The second data release from ESA's Gaia mission has revealed many ridge-like structures in the velocity distribution of the Milky Way. We show that these can arise naturally from winding transientExpand
...
1
2
3
4
5
...