中文
相关论文

相关论文: Interacting star clusters in the LMC - Overmerging…

200 篇论文

Among those objects formed out of collisional debris during galaxy mergers, the prominent gaseous accumulations observed near the tip of some long tidal tails are the most likely to survive long enough to form genuine recycled galaxies.…

天体物理学 · 物理学 2009-11-10 Pierre-Alain Duc , Frederic Bournaud , Frederic Masset

We address the presently exciting issue of the presence of stellar clusters in the periphery of the Magellanic Clouds (MCs) and beyond by making use of a wealth of wide-field high-quality images released in advance from the Magellanic…

星系天体物理 · 物理学 2017-01-18 Andrés E. Piatti

We present a photometric analysis of the rich star cluster population in the tidal tails of NGC 6872. We find star clusters with ages between 1 - 100 Myr distributed in the tidal tails, while the tails themselves have an age of less than…

天体物理学 · 物理学 2009-11-10 N. Bastian , M. Hempel , M. Kissler-Patig , N. Homeier , G. Trancho

We report on HST observations of six candidate old globular clusters in the Large Magellanic Cloud: NGC 1754, NGC 1835, NGC 1898, NGC 1916, NGC 2005 and NGC 2019. Deep exposures with the F555W and F814W filters provide us with…

天体物理学 · 物理学 2015-06-24 K. A. G. Olsen , P. W. Hodge , M. Mateo , E. W. Olszewski , R. A. Schommer , N. B. Suntzeff , A. R. Walker

New, deep HST photometry allowed us to identify and study eight compact and bright (M_V< -5.8) star clusters in the outskirts of the star-forming isolated dwarf galaxy NGC5238 (M_*= 10^8 M_sun). Five of these clusters are new discoveries,…

We present Washington system colour-magnitude diagrams (CMDs) for 17 practically unstudied star clusters located in the bar as well as in the inner disc and outer regions of the Large Magellanic Cloud (LMC). Cluster sizes were estimated…

太阳与恒星天体物理 · 物理学 2015-06-24 Tali Palma , Juan J. Clariá , Doug Geisler , Luciana V. Gramajo , Andrea V. Ahumada

We present Gemini optical spectroscopy of three young star clusters in the western tidal tail of NGC3256. Compact star clusters (as opposed to dwarf-galaxy candidates) in tidal tails are rare, with these three clusters the first for which…

天体物理学 · 物理学 2009-11-11 Gelys Trancho , Nate Bastian , Francois Schweizer , Bryan W. Miller

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

Aims. We aim to identify and classify BCs using high-precision astrometric and kinematic data, and to investigate their physical properties, mutual gravitational interactions, and formation rates. Methods. We used a comprehensive star…

星系天体物理 · 物理学 2025-10-08 Guimei Liu , Yu Zhang , Jing Zhong , Songmei Qin , Yueyue Jiang , Li Chen

We report on the accretion properties of low-mass stars in the LH95 association within the Large Magellanic Cloud (LMC). Using non-contemporaneous wide-band and narrow-band photometry obtained with the HST, we identify 245 low-mass pre-main…

太阳与恒星天体物理 · 物理学 2019-04-24 Katia Biazzo , Giacomo Beccari , Guido De Marchi , Nino Panagia

We present deep colour-magnitude diagrams for three rich intermediate-age star clusters in the Large Magellanic Cloud, constructed from archival ACS F435W and F814W imaging. All three clusters exhibit clear evidence for peculiar…

天体物理学 · 物理学 2009-11-13 A. D. Mackey , P. Broby Nielsen , A. M. N. Ferguson , J. C. Richardson

We introduce a novel theoretical model to explain the long-standing puzzle of the nature of the microlensing events reported towards the Large Magellanic Cloud (LMC) by the MACHO and OGLE collaborations. We propose that a population of…

宇宙学与河外天体物理 · 物理学 2015-06-05 Gurtina Besla , Lars Hernquist , Abraham Loeb

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 the Large Magellanic Cloud (LMC) has a very…

In a sample of 54 galaxy clusters (0.04<z<0.15) containing 3551 early-type galaxies suitable for study, we identify those with tidal features both interactively and automatically. We find that ~3% have tidal features that can be detected…

宇宙学与河外天体物理 · 物理学 2015-06-11 Scott M. Adams , Dennis Zaritsky , David J. Sand , Melissa Graham , Chris Bildfell , Henk Hoekstra , Chris Pritchet

In this paper we discuss the cluster and field star formation in the central part of the Small Magellanic Cloud. The main goal is to study the correlation between young objects and their interstellar environment. The ages of about 164…

天体物理学 · 物理学 2009-11-11 E. Chiosi , A. Vallenari , E. V. Held , L. Rizzi , A. Moretti

We use N-body simulations of star clusters to investigate the possible dynamical origins of the observed spread in core radius among intermediate-age and old star clusters in the Large Magellanic Cloud (LMC). Two effects are considered, a…

In the process of searching the Hubble Space Telescope archive, we have serendipitously discovered three populous Large Magellanic Cloud (LMC) clusters with ages that place them in the LMC `age gap.'. These clusters - NGC 2155, SL663, and…

天体物理学 · 物理学 2007-05-23 Ata Sarajedini

Star clusters can be found in galaxy mergers, not only in central regions, but also in the tidal debris. In both the Eastern and Western tidal tails of NGC 3256 there are dozens of young star clusters, confirmed by their blue colors and…

We report the discovery of tidal structures around the intermediate-aged ($\sim$ 700--800~Myr), nearby ($\sim85$~pc) star cluster Coma Berenices. The spatial and kinematic grouping of stars is determined with the {\it Gaia} DR2 parallax and…