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相关论文: On interpretation of recent proper motion data for…

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The Magellanic Clouds are a nearby pair of interacting dwarf galaxies and satellites of the Milky Way. Studying their kinematic properties is essential to understanding their origin and dynamical evolution. They have prominent tidal…

It has been recently shown that the cosmic repulsion can have a highly significant influence on the motion of Magellanic Clouds (MC) in the gravitational field of Milky Way, treated in the framework of the Cold Dark Matter (CDM) halo model.…

星系天体物理 · 物理学 2015-06-18 Jan Schee , Zdenek Stuchlik , Martin Petrasek

In the self--lensing framework, we estimate the modal values of the mass of the gravitational lenses found by the MACHO collaboration towards the Large Magellanic Cloud (LMC). Our results suggest that only the events located near the center…

天体物理学 · 物理学 2011-10-18 L. Mancini , S. Calchi Novati , Ph. Jetzer , G. Scarpetta

We present a study of the shape of the Large Magellanic Cloud disk. We use the brightnesses of core helium-burning red clump stars identified in V-I,I color-magnitude diagrams of 50 randomly selected LMC fields, observed with the CTIO 0.9-m…

天体物理学 · 物理学 2007-05-23 K. A. G. Olsen , C. Salyk

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. To correct for line-of-sight dust extinction,…

We present results from photometric and spectroscopic data obtained with SOAR and Gemini observatory facilities in the field of a recently discovered star cluster. The cluster, projected towards the Eastern side of the outer disc of the…

星系天体物理 · 物理学 2018-10-17 Andrés E. Piatti , Ricardo Salinas , Eva K. Grebel

The distribution of core radii of rich clusters in the Large Magellanic Cloud (LMC) systematically increases in both upper limit and spread with increasing cluster age. Cluster-to-cluster variations in the stellar initial mass function…

We present a model for the formation of the Magellanic Stream (MS) due to ram pressure stripping. We model the history of the Small and Large Magellanic Clouds in the recent cosmological past in a static Milky Way potential with diffuse…

星系天体物理 · 物理学 2023-05-10 Peter Craig , Sukanya Chakrabarti , Stefi Baum , Benjamin T. Lewis

We present N-body and hydrodynamical simulations of the response of the Milky Way's baryonic disc to the presence of the Large Magellanic Cloud during a first infall scenario. For a fiducial galactic model reproducing the gross properties…

The 3D observed velocities of the Large and Small Magellanic Clouds(LMC and SMC) provide an opportunity to probe the Galactic potential in the outskirt of the Galactic halo. Based on a canonical NFW model of the Galactic potential, Besla et…

星系天体物理 · 物理学 2015-06-11 Xiaojia Zhang , Douglas N. C. Lin , Andreas Burkert , Ludwig Oser

Hubble Space Telescope V,I photometry of stars in the Large Magellanic Cloud Cluster NGC 1866 shows a well defined cluster main sequence down to V=25 mag, with little contamination from field or foreground stars. We use the main sequence…

天体物理学 · 物理学 2009-11-07 A. R. Walker , G. Raimondo , E. Di Carlo , E. Brocato , V. Castellani , V. Hill

We model the potentially observable populations of normal and millisecond radio pulsars in the Large and Small Magellanic Clouds (LMC and SMC) where the known population currently stands at 19 normal radio pulsars. Taking into account the…

星系天体物理 · 物理学 2015-05-19 J. P. Ridley , D. R. Lorimer

The off-centered "bar" of the Large Magellanic Cloud (LMC) is commonly assumed, for simplicity's sake, to lie in the same plane as the LMC disk. Relaxing this assumption to the extent allowed by the observations, we can drastically change…

天体物理学 · 物理学 2009-10-31 H. S. Zhao , N. W. Evans

The distance modulus of the Large Magellanic Cloud (LMC) is the first step on the determination of the cosmic distance scale. In this paper it is obtained from a new calibration of the classical Cepheid Period-Luminosity (PL) relation. Our…

天体物理学 · 物理学 2007-05-23 Xavier Luri , J. Torra , F. Figueras , A. E. Gomez , M. J. Goupil , J. P. Beaulieu

The Magellanic Clouds, especially the Large Magellanic Cloud, are places where multiple distance indicators can be compared with each other in a straight-forward manner at considerable precision. We here review the distances derived from…

星系天体物理 · 物理学 2015-06-03 Alistair R Walker

We use stellar proper motions (PM) from Gaia Data Release 2 for studying the internal kinematics of Milky Way globular clusters. In addition to statistical measurement errors, there are significant spatially correlated systematic errors,…

星系天体物理 · 物理学 2019-08-07 Eugene Vasiliev

We use kinematic data of proper motions from Gaia of forty-two globular and open clusters from Large Magellanic Cloud (LMC) to explore the possibility of them having extragalactic origins. We find the difference between the proper motions…

星系天体物理 · 物理学 2026-03-11 Tamojeet Roychowdhury , Navdha Bhalla

The LM method, designed to exploit the Hipparcos data to obtain luminosity calibrations, is applied to derive luminosity calibrations for RR Lyrae and classical Cepheids. From these calibrations the distance to the Large Magellanic Cloud…

天体物理学 · 物理学 2007-05-23 X. Luri , A. E. Gomez , J. Torra , F. Figueras , M. O. Mennessier

This proceeding overviews our current understanding of the orbital history and mass of the Large and Small Magellanic Clouds. Specifically I will argue that the Clouds are on their first infall about our Milky Way and that their total…

星系天体物理 · 物理学 2015-11-12 Gurtina Besla

We report the discovery of a substantial stellar overdensity in the periphery of the Large Magellanic Cloud (LMC), found using public imaging from the first year of the Dark Energy Survey. The structure appears to emanate from the edge of…

星系天体物理 · 物理学 2016-04-27 Dougal Mackey , Sergey E. Koposov , Denis Erkal , Vasily Belokurov , Gary S. Da Costa , Facundo A. Gómez