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We summarize recent studies of the predominantly neutral gas in the Magellanic Clouds (MC), based on combinations of high-resolution optical spectra and UV spectra obtained with IUE, HST, and FUSE. Similarities in relative gas-phase…

天体物理学 · 物理学 2007-05-23 Daniel E. Welty

The Small Magellanic Cloud (SMC) provides the only laboratory to study the structure of molecular gas at high resolution and low metallicity. We present results from the Herschel Spectroscopic Survey of the SMC (HS$^{3}$), which mapped the…

This paper presents [CII], [CI] and CO emission line maps of the star-forming regions N66, N25+N26, and N88 in the metal-poor Local Group dwarf galaxy SMC. The spatial and velocity structure of the large HII region N66 reveals an expanding…

星系天体物理 · 物理学 2016-04-13 M. A. Requena-Torres , F. P. Israel , Y. Okada , R. Guesten , J. Stutzki , C. Risacher , R. Simon , H. Zinnecker

We present a study of the mid-infrared properties and dust content of a sample of 27 HII ``blobs'', a rare class of compact HII regions in the Magellanic Clouds. A unique feature of this sample is that even though these HII regions are of…

天体物理学 · 物理学 2010-05-25 V. Charmandaris , M. Heydari-Malayeri , E. Chatzopoulos

Using high-resolution imaging with the Hubble Space Telescope, we study the Large Magellanic Cloud HII region N160A and uncover several striking features of this complex massive star-forming site. The two compact high excitation HII blobs…

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…

天体物理学 · 物理学 2007-05-23 Valentin D. Ivanov , Ray Jayawardhana

In this paper, we have conducted an investigation focused on a segment of the $Spitzer$ mid-infrared bubble N59, specifically referred to as R1 within our study. Situated in the inner Galactic plane, this region stands out for its hosting…

星系天体物理 · 物理学 2024-03-29 Sonu Tabitha Paulson , K. K. Mallick , D. K. Ojha

The Small Magellanic Cloud (SMC), a satellite galaxy of the Milky Way, is an irregular dwarf galaxy exhibiting evidence of recent and ongoing star formation. We performed a spatial clustering analysis of far-ultraviolet stars in the SMC…

星系天体物理 · 物理学 2025-06-11 Sipra Hota , Richard de Grijs , Annapurni Subramaniam

We report the detection of oxygen-rich circumstellar envelopes in stars of the nearby (700 kpc) starburst galaxy IC 10. The star formation history and the chemical environment of this galaxy makes it an ideal target to observe dust…

太阳与恒星天体物理 · 物理学 2015-06-11 V. Lebouteiller , G. C. Sloan , M. A. T. Groenewegen , M. Matsuura , D. Riebel , D. G. Whelan , J. Bernard-Salas , P. Massey , E. Bayet

We present the first interferometric CO(J=1->0) map of the entire H-alpha disk of M33. The 13" diameter synthesized beam corresponds to a linear resolution of 50 pc, sufficient to distinguish individual giant molecular clouds (GMCs). From…

天体物理学 · 物理学 2009-11-10 G. Engargiola , R. Plambeck , E. Rosolowsky , L. Blitz

The Small Magellanic Cloud (SMC) hosts a large number of high-mass X-ray binaries, and in particular of Be/X-ray Binaries (BeXRBs; neutron stars orbiting OBe-type stars), offering a unique laboratory to address the effect of metalicity. One…

太阳与恒星天体物理 · 物理学 2017-11-15 Grigoris Maravelias , Andreas Zezas , Vallia Antoniou , Despina Hatzidimitriou , Frank Haberl

We present initial results of the first large scale survey of embedded star clusters in molecular clouds in the Large Magellanic Cloud (LMC) using near-infrared (NIR) imaging from the VISTA Magellanic Clouds Survey (Cioni et al. 2011). We…

星系天体物理 · 物理学 2016-04-27 Krista Romita , Elizabeth Lada , Maria-Rosa Cioni

We have produced an atlas of Spitzer Infrared Spectrograph (IRS) spectra of mass-losing, evolved stars in the Large Magellanic Cloud. These stars were selected to have high mass-loss rates and so contribute significantly to the return of…

We present Antarctic Submillimeter Telescope and Remote Observatory (AST/RO) observations of 12CO J=4-3 and C I emission in the N44 H II complex in the Large Magellanic Cloud. We detected strong 12CO J=4-3 emission toward the H II region…

天体物理学 · 物理学 2009-11-10 Sungeun Kim , Wilfred Walsh , Kecheng Xiao

We demonstrate that single and binary star clusters can be formed during cloud-cloud collisions triggered by the tidal interaction between the Large and Small Magellanic clouds. We run two different sets of self-consistent numerical…

天体物理学 · 物理学 2009-11-10 Kenji Bekki , Michael A. Beasley , Duncan A. Forbes , Warrick J. Couch

We present a comprehensive study of star formation toward the H II region S155. Star-formation activities therein were investigated based on multi-wavelength data from optical to the far-infrared. The surface density distribution of…

太阳与恒星天体物理 · 物理学 2015-06-19 Ya Fang Huang , Jin Zeng Li , Travis A. Rector , Zhou Fan

Combining the relative vicinity of the Local Group spiral galaxy M33 with the Spitzer images, we investigate the properties of infrared (IR) emission sites and assess the reliability of the IR emission as a star formation tracer. The mid-…

天体物理学 · 物理学 2009-11-13 S. Verley , L. K. Hunt , E. Corbelli , C. Giovanardi

We present HK spectra of three sources located in the N66 region of the Small Magellanic Cloud. The sources display prominent stellar Br Gamma and extended H2 emission, and exhibit infrared excesses at lambda > 2 micron. Based on their…

星系天体物理 · 物理学 2018-08-08 Monica Rubio , Rodolfo H. Barbá , Venu M. Kalari

We have performed Atacama Large Millimeter/submillimeter Array (ALMA) observations in $^{12}$CO($J=2-1$), $^{13}$CO($J=2-1$), C$^{18}$O($J=2-1$), $^{12}$CO($J=3-2$), $^{13}$CO($J=3-2$), and CS($J=7-6$) lines toward the active star-forming…

We present the results of our investigation of the intermediate-age star cluster BS 90, located in the vicinity of the HII region N 66 in the SMC, observed with HST/ACS. The high-resolution data provide a unique opportunity for a very…