A Population of Accreted SMC Stars in the LMC

@article{Olsen2011APO,
  title={A Population of Accreted SMC Stars in the LMC},
  author={K. A. G. Olsen and Dennis Zaritsky and Robert D. Blum and Martha L. Boyer and Karl D. Gordon},
  journal={arXiv: Astrophysics of Galaxies},
  year={2011}
}
We present an analysis of the stellar kinematics of the Large Magellanic Cloud based on ~5900 new and existing velocities of massive red supergiants, oxygen-rich and carbon-rich AGB stars, and other giants. After correcting the line-of-sight velocities for the LMC's space motion and accounting for asymmetric drift in the AGB population, we derive a rotation curve that is consistent with all of the tracers used, as well as that of published HI data. The amplitude of the rotation curve is v_0=87… Expand

Figures from this paper

Old, Metal-poor Extreme Velocity Stars in the Solar Neighborhood
We report the discovery of 30 stars with extreme space velocities (> 480 km/s) in the Gaia-DR2 archive. These stars are a subset of 1743 stars with high-precision parallax, large tangential velocityExpand
CONSTRAINTS ON THE MAGELLANIC CLOUDS' INTERACTION FROM THE DISTRIBUTION OF OB STARS AND THE KINEMATICS OF GIANTS
Young, OB-type candidates are identified in a ~7900?deg2 region encompassing the Large and Small Magellanic Clouds (LMC/SMC) periphery, the Bridge, part of the Magellanic Stream (MS), and Leading ArmExpand
Third-epoch Magellanic Cloud Proper Motions. II. The Large Magellanic Cloud Rotation Field in Three Dimensions
We present the first detailed assessment of the large-scale rotation of any galaxy based on full three-dimensional velocity measurements. We do this for the LMC by combining our Hubble SpaceExpand
IDENTIFICATION OF A CLASS OF LOW-MASS ASYMPTOTIC GIANT BRANCH STARS STRUGGLING TO BECOME CARBON STARS IN THE MAGELLANIC CLOUDS
We have identified a new class of Asymptotic Giant Branch (AGB) stars in the Small and Large Magellanic Clouds (SMC/LMC) using optical to infrared photometry, light curves, and optical spectroscopy.Expand
Young stars in the periphery of the Large Magellanic Cloud
Despite their close proximity, the complex interplay between the two Magellanic Clouds, the Milky Way, and the resulting tidal features, is still poorly understood. Recent studies have shown that theExpand
SMASHing the LMC: Mapping a Ring-like Stellar Overdensity in the LMC Disk
We explore the stellar structure of the Large Magellanic Cloud (LMC) disk using data from the Survey of the MAgellanic Stellar History (SMASH) and the Dark Energy Survey. We detect a ring-likeExpand
Stellar streams around the Magellanic Clouds in 4D
We carried out a spectroscopic follow-up program of the four new stellar stream candidates detected by Belokurov & Koposov (2016) in the outskirts of the Large Magellanic Cloud (LMC) using FORS2Expand
An Expanded Chemo-dynamical Sample of Red Giants in the Bar of the Large Magellanic Cloud
We report new spectroscopic observations obtained with the Michigan/Magellan Fiber System of 308 red giants (RGs) located in two fields near the photometric center of the bar of the Large MagellanicExpand
SMASHing the LMC: A Tidally Induced Warp in the Outer LMC and a Large-scale Reddening Map
We present a study of the three-dimensional (3D) structure of the Large Magellanic Cloud (LMC) using ~2.2 million red clump (RC) stars selected from the Survey of the MAgellanic Stellar History. ToExpand
A Tidally Stripped Stellar Component of the Magellanic Bridge
Deep photometry of the Small Magellanic Cloud (SMC) stellar periphery (R = 4°, 4.2 kpc) is used to study its line-of-sight depth with red clump (RC) stars. The RC luminosity function is affectedExpand
...
1
2
3
4
5
...

References

SHOWING 1-10 OF 51 REFERENCES
The Velocity Structure of Large Magellanic Cloud Carbon Stars: Young Disk, Old Disk, and Perhaps a Separate Population
We analyze the velocity residuals of 551 carbon stars relative to a rotating-disk model of the inner ~70 deg2 of the Large Magellanic Cloud (LMC). We find that the great majority of the stars in thisExpand
Evidence for Tidal Effects in the Stellar Dynamics of the Large Magellanic Cloud
We present a combined analysis of the kinematics of the Large Magellanic Cloud through its H I gas, carbon stars, and red supergiant stars. After correcting the line-of-sight velocities for theExpand
The Evolution of Massive Stars. I. Red Supergiants in the Magellanic Clouds
We investigate the red supergiant (RSG) content of the SMC and LMC using multiobject spectroscopy on a sample of red stars previously identified by BVR CCD photometry. We obtained high-accuracy (<1Expand
A Radial Velocity and Calcium Triplet Abundance Survey of Field Small Magellanic Cloud Giants
We present the results of a pilot wide-field radial velocity and metal abundance survey of red giants in 10 fields in the Small Magellanic Cloud (SMC). The targets lie at projected distances of 0.9Expand
A Warp in the Large Magellanic Cloud Disk
We present a study of the shape of the Large Magellanic Cloud (LMC) disk. We use the brightnesses of core helium burning red clump stars identified in V-I, I color-magnitude diagrams of 50 randomlyExpand
Spectroscopy of red giants in the large magellanic cloud bar : Abundances, kinematics, and the age-metallicity relation
We report metallicities and radial velocities derived from spectra at the near-infrared calcium triplet for 373 red giants in a 200 arcmin2 area at the optical center of the LMC bar. These are theExpand
New Understanding of Large Magellanic Cloud Structure, Dynamics, and Orbit from Carbon Star Kinematics
We formulate a new and coherent understanding of the structure and dynamics of the Large Magellanic Cloud (LMC) and its orbit around and interaction with the Milky Way. Much of our understanding ofExpand
A new look at the large-scale H I structure of the Large Magellanic Cloud
We present a Parkes multibeam H i survey of the Large Magellanic Cloud (LMC). This survey, which is sensitive to spatial structure in the range 200 pc ∼ 10 kpc, complements the Australia TelescopeExpand
Is the SMC Bound to the LMC? The Hubble Space Telescope Proper Motion of the SMC
We present a measurement of the systemic proper motion of the Small Magellanic Cloud (SMC) made using the Advanced Camera for Surveys (ACS) on the Hubble Space Telescope (HST). We tracked the SMC'sExpand
The Dynamics of the Large Magellanic Cloud Periphery: Mass Limit and Polar Ring
Radial velocities of 759 carbon stars on the periphery of the LMC are used to determine the rotation curve from 3 to 12 kpc. After a peak of 42 km s-1 at 4 kpc, the velocities decline to 35 km s-1 atExpand
...
1
2
3
4
5
...