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The Magellanic Clouds are a local laboratory for understanding the evolution and properties of dwarf irregular galaxies. To reveal the extended structure and interaction history of the Magellanic Clouds we have undertaken a large-scale…

It is a longstanding problem that HII regions and very young stellar populations in the Large Magellanic Cloud (LMC) have the nitrogen abundances ([N/H]) by a factor of ~7 lower than the solar value. We here discuss a new scenario in which…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-19 Kenji Bekki , Takuji Tsujimoto

The Magellanic System (MS), consisting of the Large Magellanic Cloud (LMC), the Small Magellanic Cloud (SMC) and the Magellanic Bridge (MBR), contains diverse sample of star clusters. Their spatial distribution, ages and chemical abundances…

The Small Magellanic Cloud (SMC) is an excellent laboratory to study the formation of solar-mass stars in a low-metallicity environment, similar to the conditions expected in the early phases of galactic evolution. Here we present…

Astrophysics · Physics 2007-05-23 Valentin D. Ivanov , Ray Jayawardhana

The chemical abundances of a galaxy's metal-poor stellar population can be used to investigate the earliest stages of its formation and chemical evolution. The Magellanic Clouds are the most massive of the Milky Way's satellite galaxies and…

Astrophysics of Galaxies · Physics 2021-11-17 Henrique Reggiani , Kevin C. Schlaufman , Andrew R. Casey , Joshua D. Simon , Alexander P. Ji

Young massive stars and stellar clusters continuously form in the Galactic disk, generating new HII regions within their natal giant molecular clouds and subsequently enriching the interstellar medium via their winds and supernovae. Massive…

High-mass stars are commonly found in stellar clusters promoting the idea that their formation occurs due to the physical processes linked with a young stellar cluster. It has recently been reported that isolated high-mass stars are present…

Astrophysics of Galaxies · Physics 2017-11-29 William E. Lucas , Matus Rybak , Ian A. Bonnell , Mark Gieles

We have applied the unsharp-masking technique to the 24 $\mu$m image of the Small Magellanic Cloud (SMC), obtained with the Spitzer Space Telescope, to search for high-extinction regions. This technique has been used to locate very dense…

The projected distribution of stars in the Small Magellanic Cloud (SMC) from the Magellanic Clouds Photometric Survey is analysed. Stars of different ages are selected via criteria based on V magnitude and V-I colour, and the degree of…

Astrophysics · Physics 2011-07-21 M. Gieles , N. Bastian , B. Ercolano

We examine the recent star formation associated with four supergiant shells (SGSs) in the Large Magellanic Cloud (LMC): LMC 1, 4, 5, and 6, which have been shown to have simple expanding-shell structures. H II regions and OB associations…

Solar and Stellar Astrophysics · Physics 2010-12-07 Laura G. Book , You-Hua Chu , Robert A. Gruendl , Yasuo Fukui

We observed a sample of evolved stars in the Large and Small Magellanic Clouds (LMC and SMC) with the Infrared Spectrograph on the Spitzer Space Telescope. Comparing samples from the SMC, LMC, and the Galaxy reveals that the dust-production…

We report on the astrophysical properties of a sample of star clusters in the Small Magellanic Cloud (SMC). They have been selected with the aim of looking for the connection between their ages, heliocentric distances and metallicities with…

Astrophysics of Galaxies · Physics 2025-03-12 Denis M. F. Illesca , Andrés E. Piatti , Matías Chiarpotti , Roberto Butrón

We present a spectroscopic study of the most massive stars in the young (4 Myr old) stellar cluster LH 95 in the Large Magellanic Cloud. This analysis allows us to complete the census of the stellar population of the system, previously…

Astrophysics of Galaxies · Physics 2015-06-04 N. Da Rio , D. Gouliermis , B. Rochau , A. Pasquali , J. Setiawan , G. De Marchi

Young massive clusters (YMCs) are the most compact, high-mass stellar systems still forming at the present day. The precursor clouds to such systems are, however, rare due to their large initial gas mass reservoirs and rapid dispersal…

We present our recent work on the conditions under which star formation occurs in a metal-poor environment, the Large Magellanic Cloud ([Fe/H] ~ -0.4). Water masers are used as beacons of the current star formation in HII regions. Comparing…

Astrophysics · Physics 2015-06-24 J. M. Oliveira , J. Th van Loon , S. Stanimirovic

We studied star formation activities in the molecular clouds in the Large Magellanic Cloud. We have utilized the second catalog of 272 molecular clouds obtained by NANTEN to compare the cloud distribution with signatures of massive star…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-13 A. Kawamura , Y. Mizuno , T. Minamidani , M. D. Fillipovic , L. Staveley-Smith , S. Kim , N. Mizuno , T. Onishi , A. Mizuno , Y. Fukui

In this chapter we review the young stars and molecular clouds found at high Galactic latitudes $(|b| \ge 30^\circ)$. These are mostly associated with two large-scale structures on the sky, the Gould Belt and the Taurus star formation…

Astrophysics · Physics 2008-11-24 Peregrine M. McGehee

High resolution imaging with the HST uncovers the so far hidden stellar content and the nebular features of the high excitation compact HII region N83B in the Large Magellanic Cloud (LMC). We discover that the HII region is powered by the…

This article compares the Ks magnitude distribution of Small Magellanic Cloud asymptotic giant branch stars obtained from the DENIS and 2MASS data with theoretical distributions. Theoretical Ks magnitude distributions have been constructed…

Astrophysics · Physics 2011-07-21 M. -R. L. Cioni , L. Girardi , P. Marigo , H. J. Habing

Star formation in starbursts appears to be biased toward compact clusters, with up to 20% of all stars formed in them. Observations with HST show that many of these clusters have luminosities (-9 > Mv > -16), UBVI colors, and half-light…

Astrophysics · Physics 2007-05-23 Francois Schweizer