English
Related papers

Related papers: Two kinematically distinct old globular cluster po…

200 papers

The spatial distribution of known globular clusters (GCs) in the Milky Way shows that the current census of GCs is incomplete in the direction of the Galactic plane. We present the discovery of two new GCs located close to the Galactic…

Astrophysics of Galaxies · Physics 2018-08-29 Jinhyuk Ryu , Myung Gyoon Lee

The study of the kinematics of globular clusters (GCs) offers the possibility of unveiling their long term evolution and uncovering their yet unknown formation mechanism. Gaia DR2 has strongly revitalized this field and enabled the…

Astrophysics of Galaxies · Physics 2020-03-18 P. Bianchini

We present $\it{Hubble}$ $\it{Space}$ $\it{Telescope}$ proper motions in the direction of the star cluster NGC$\,$419 in the Small Magellanic Cloud. Because of the high precision of our measurements, for the first time it is possible to…

Astrophysics of Galaxies · Physics 2020-11-18 Davide Massari , Silvia Raso , Mattia Libralato , Andrea Bellini

We have introduced a semi-automated quantitative method to estimate the age and reddening of 1072 star clusters in the Large Magellanic Cloud (LMC) using the Optical Gravitational Lensing Experiment (OGLE) III survey data. This study brings…

Astrophysics of Galaxies · Physics 2016-08-24 P. K. Nayak , A. Subramaniam , S. Choudhury , G. Indu , Ram Sagar

We present a spectroscopic analysis of main sequence (MS) stars in the young globular cluster NGC1818 (age~40 Myrs) in the Large Magellanic Cloud. Our photometric survey on Magellanic Clouds clusters has revealed that NGC1818, similarly to…

Solar and Stellar Astrophysics · Physics 2018-08-29 A. F. Marino , N. Przybilla , A. P. Milone , G. Da Costa , F. D'Antona , A. Dotter , A. Dupree

I present measurements of the projected rotational velocities of a sample of 100 early B-type main-sequence stars in the Large Magellanic Cloud. This is the first extragalactic study of the distribution of stellar rotational velocities. The…

Astrophysics · Physics 2009-11-10 Stefan C. Keller

Recent observations of the Small Magellanic Cloud (SMC) have revealed that the HI gas shows a significant amount of rotation (V_c 60 km/s), while no or little rotation is evident for the old stellar populations. We suggest that this unique…

Astrophysics · Physics 2009-11-13 Kenji Bekki , Masashi Chiba

Galactic globular clusters are ancient building blocks of our Galaxy. They represent a very interesting family of stellar systems in which some fundamental dynamical processes have been taking place for more than 10 Gyr, but on time scales…

Astrophysics · Physics 2018-03-28 G. Meylan

This is the second paper in a series, which studies the likelihood that some globular clusters (GCs) of the Milky Way (MW) could have originated from a dwarf satellite galaxy (DSG). Using a large suite of three-body simulations we determine…

Astrophysics of Galaxies · Physics 2023-10-30 Ali Rostami Shirazi , Pouria Khalaj , Hosein Haghi

We assemble a catalogue of Magellanic Cloud red giants from Data Release 2 of the $Gaia$ mission and, utilising machine learning methods, obtain photometric metallicity estimates for them. In doing so, we are able to chemically map the…

Astrophysics of Galaxies · Physics 2021-03-24 J. Grady , V. Belokurov , N. W. Evans

We present results from a study of the distances and distribution of a sample of intermediate-age clusters in the Large Magellanic Cloud. Using deep near-infrared photometry obtained with ISPI on the CTIO 4m, we have measured the apparent…

Astrophysics · Physics 2009-06-23 A. J. Grocholski , A. Sarajedini , K. A. G. Olsen , G. P. Tiede , C. L. Mancone

We use multi-epoch near-infrared observations from the VISTA survey of the Magellanic Cloud system (VMC) to measure the proper motion of stars of the LMC, in one tile of 1.5 deg^2 centred at (alpha, delta) = (05:59:23.136, -66:20:28.68) and…

We present results from an extensive spectroscopic survey of field stars in the Small Magellanic Cloud (SMC). 3037 sources, predominantly first-ascent red giants, spread across roughly 37.5 sq. deg, are analysed. The line of sight velocity…

Astrophysics of Galaxies · Physics 2017-01-04 P. D. Dobbie , A. A. Cole , A. Subramaniam , S. Keller

A solution is presented for the past motions of the Magellanic Clouds, the Milky Way galaxy, and M31, fitted to the measured velocities of the Clouds and M31, under some simplifying assumptions. The galaxies are modeled as isolated bodies…

Cosmology and Nongalactic Astrophysics · Physics 2009-07-31 P. J. E. Peebles

The number of star clusters that populate the Large Magellanic Cloud (LMC) at deprojected distances < 4 deg has been recently found to be nearly double the known size of the system. Because of the unprecedented consequences of this outcome…

Astrophysics of Galaxies · Physics 2018-02-14 Andrés E. Piatti

We present the results of a self-consistent $N$-body simulation following the evolution of a primordial population of thick disc globular clusters (GCs). We study how the internal properties of such clusters evolve under the action of…

Astrophysics of Galaxies · Physics 2018-12-12 Sergey Khoperskov , Alessandra Mastrobuono-Battisti , Paola Di Matteo , Misha Haywood

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…

New star cluster candidates projected toward the Large and Small Magellanic Clouds (L/SMC) have been recently discovered from relatively deep imaging surveys. We here conduct a sound analysis of 24 star cluster candidates located in the…

Astrophysics of Galaxies · Physics 2021-03-10 Andrés E. Piatti

We present the stellar radial velocity analysis of the central 1x1' of the young massive Small Magellanic Cloud star cluster NGC 346. Using VLT/MUSE integral field spectroscopy in combination with Hubble Space Telescope photometry we…

Astrophysics of Galaxies · Physics 2022-09-14 Peter Zeidler , Elena Sabbi , Antonella Nota

Recent observational studies using the Hubble Space Telescope (HST) have derived the center-of-mass proper motion (CMPM) of the Large Magellanic Cloud (LMC). Although these studies carefully treated both rotation and perspective effects in…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-27 Kenji Bekki
‹ Prev 1 4 5 6 7 8 10 Next ›