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相关论文: Moment Analysis Applied to LMC Star Clusters

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More than 50 years have elapsed since the first studies of star clusters in the Magellanic Clouds. The wealth of data accumulated since then has not only revealed a large cluster system, but also a diversified one, filling loci in the age,…

天体物理学 · 物理学 2009-11-13 B. X. Santiago

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…

星系天体物理 · 物理学 2018-02-14 Andrés E. Piatti

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…

星系天体物理 · 物理学 2016-08-24 P. K. Nayak , A. Subramaniam , S. Choudhury , G. Indu , Ram Sagar

We present our new, fully-automated method to detect and measure the ages of star clusters in nearby galaxies, where individual stars can be resolved. The method relies purely on statistical analysis of observations and Monte-Carlo…

The characteristics of the cluster systems of the Magellanic Clouds, as inferred from integrated properties, are compared with those from individual cluster studies and from the field population. The agreement is generally satisfactory…

天体物理学 · 物理学 2007-05-23 G. S. Da Costa

The Small Magellanic Cloud (SMC) has recently been found to harbour more than two hundred per cent increase of its known cluster population. We provide here with solid evidence that such an unprecedented number of clusters could be largely…

星系天体物理 · 物理学 2018-06-13 Andrés E. Piatti

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…

星系天体物理 · 物理学 2021-03-10 Andrés E. Piatti

The age distribution function of star clusters in the Large Magellanic Cloud (LMC) is known to present a feature called the cluster age gap, a period of time from ~ 4 to 11 Gyr ago with a remarkable small number of clusters identified. In…

星系天体物理 · 物理学 2025-07-28 Andrés E. Piatti

[ABRIDGED] The LMC star cluster system offers the unique opportunity to independently check the accuracy of age and mass determinations based on a number of complementary techniques, including isochrone analysis. Using our sophisticated…

天体物理学 · 物理学 2009-11-13 Richard de Grijs , Peter Anders

Recently, a noticeable number of new star clusters was identified in the outskirts of the Large Magellanic Cloud (LMC) populating the so-called star cluster age gap, a space of time (~ 4-12 Gyr) where the only known star cluster is…

星系天体物理 · 物理学 2021-03-31 Andrés E. Piatti

This study presents a comprehensive analysis of the youngest stellar clusters in the Large Magellanic Cloud (LMC), utilising a multi-wavelength approach. We analyse data spanning from infrared to ultraviolet wavelengths, with the goal of…

星系天体物理 · 物理学 2025-03-13 Ricardo Chávez , Rosa Amelia González-Lópezlira , Gustavo Bruzual

The evolution of star clusters in the Magellanic Clouds has been the subject of significant recent controversy, particularly regarding the importance and length of the earliest, largely mass-independent disruption phase (referred to as…

天体物理学 · 物理学 2009-11-13 Richard de Grijs , Simon P. Goodwin

We analysed Washington $CMT_1$ photometry of star clusters located along the minor axis of the LMC, from the LMC optical centre up to $\sim$ 39 degrees outwards to the North-West. The data base was exploited in order to search for new star…

星系天体物理 · 物理学 2017-10-18 Andrés E. Piatti , Andrew A. Cole , Bryn Emptage

In the Large Magellanic Cloud (LMC), there have been very few clusters observed with ages between 4 and 11 Gyr. This phenomenon is sometimes referred to as the `LMC age gap'. We constructed a model of the cluster age distribution aimed at…

星系天体物理 · 物理学 2026-05-12 Jonathan H. Klos , Andrés E. Piatti

We present age measurements for 195 star clusters in the Small Magellanic Cloud based on comparison of integrated colors measured from the Magellanic Clouds Photometric Survey with models of simple stellar populations. We find that the…

天体物理学 · 物理学 2008-11-26 Marc Rafelski , Dennis Zaritsky

We performed numerical simulations of star cluster encounters with Hernquist's TREECODE in a CRAY YMP-2E computer. We used different initial conditions (relative positions and velocities, cluster sizes, masses and concentration degrees)…

天体物理学 · 物理学 2009-10-31 M. R. de Oliveira , E. Bica , H. Dottori

We present a detailed view of cluster formation (CF) to trace the evolution and interaction history of the Magellanic Clouds (MCs) in the last 3.5 Gyr. Using the \textit{Gaia} DR3 data, we parameterized 1710 and 280 star clusters in the…

星系天体物理 · 物理学 2024-01-11 S. R. Dhanush , A. Subramaniam , Prasanta K. Nayak , S. Subramanian

Whether or not the rich star cluster population in the Large Magellanic Cloud (LMC) is affected by significant disruption during the first few x 10^8 yr of its evolution is an open question and the subject of significant current debate.…

星系天体物理 · 物理学 2015-06-16 Richard de Grijs , Simon P. Goodwin , Peter Anders

(abridged) We present a comprehensive study of stellar stratification in young star clusters in the Large Magellanic Cloud (LMC). We apply our recently developed effective radius method for the assessment of stellar stratification on…

星系天体物理 · 物理学 2015-05-14 Dimitrios A. Gouliermis , Dougal Mackey , Yu Xin , Boyke Rochau

The aim of this work is to test to what extent the star cluster population of a galaxy can be utilised to constrain or estimate the star formation history, with the Large Magellanic Cloud as our testbed. We follow two methods to extract…

宇宙学与河外天体物理 · 物理学 2015-05-20 Thomas Maschberger , Pavel Kroupa
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