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相关论文: A 2dF survey of the Small Magellanic Cloud

200 篇论文

Large spectroscopic surveys of individual massive stars, such as ULLYSES and XSHOOTU, provide observational data for hundreds of massive stars. Their analysis requires large numbers of synthetic spectra so that stellar parameters can be…

太阳与恒星天体物理 · 物理学 2024-08-21 W. Marcolino , J. -C. Bouret , F. Martins , D. J. Hillier

We present an analysis of the deepest pure-UV observations with the highest angular resolution ever performed, a set of 12 exposures with the HST WFPC2 and F160BW filter obtained in parallel observing mode, which cover $\sim$12 square…

天体物理学 · 物理学 2009-10-30 Noah Brosch , Michael Shara , John MacKenty , David Zurek , Brian McLean

The blue supergiant (BSG) domain contains a large variety of stars whose past and future evolutionary paths are still highly uncertain. Since binary interaction plays a crucial role in the fate of massive stars, investigating the…

We present the catalog of 1459 eclipsing binary stars detected in the central 2.4 square degree area of the Small Magellanic Cloud during the OGLE-II microlensing search. The sample includes objects brighter than I=20 mag with periods…

天体物理学 · 物理学 2007-05-23 A. Udalski , I. Soszynski , M. Szymanski , M. Kubiak , G. Pietrzynski , P. Wozniak , K. Zebrun

The Small Magellanic Cloud (SMC) hosts 12 known Wolf-Rayet (WR) stars, seven of which are apparently single. Their formation is a challenge for current stellar evolution models because line-driven winds are generally assumed to be quenched…

We report the first-ever discovery of a Wolf-Rayet (WR) star in the Large Magellanic Cloud via detection of a circular shell with the Spitzer Space Telescope. Follow-up observations with Gemini-South resolved the central star of the shell…

太阳与恒星天体物理 · 物理学 2015-06-19 V. V. Gvaramadze , A. -N. Chene , A. Y. Kniazev , O. Schnurr , T. Shenar , A. Sander , R. Hainich , N. Langer , W. -R. Hamann , Y. -H. Chu , R. A. Gruendl

We present an analysis of high-resolution FLAMES spectra of approximately 50 early B-type stars in three young clusters at different metallicities, NGC6611 in the Galaxy, N11 in the Large Magellanic Cloud (LMC) and NGC346 in the Small…

天体物理学 · 物理学 2014-10-13 I. Hunter , P. L. Dufton , S. J. Smartt , R. S. I. Ryans , C. J. Evans , D. J. Lennon , C. Trundle , I. Hubeny , T. Lanz

The list of 127 eclipsing stars in optical coincidence with star clusters from the SMC is presented. It was prepared using the catalogs of eclipsing systems and star clusters from the SMC based on observations collected during the OGLE-II…

天体物理学 · 物理学 2007-05-23 G. Pietrzynski , A. Udalski

Swift J004929.5-733107 is an X-ray source in the Small Magellanic Cloud (SMC) that has been reported several times, but the optical counterpart has been unclear due to source confusion in a crowded region of the SMC. Previous works proposed…

高能天体物理现象 · 物理学 2021-04-21 M. J. Coe , J. A. Kennea , P. A. Evans , L. J. Townsend , A. Udalski , I. M. Monageng , D. A. H. Buckley

We present our catalog of U, B, V, and I stellar photometry of the central 18 sq. degree area of the Small Magellanic Cloud. We combine our data with the 2MASS and DENIS catalogs to provide, when available, U through K_S data for stars.…

天体物理学 · 物理学 2011-07-18 Dennis Zaritsky , Jason Harris , Ian B. Thompson , Eva K. Grebel , Philip Massey

We present the results of a search for Be stars in six fields centered on the young clusters NGC 330 and NGC 346 in the SMC, and NGC 1818, NGC 1948, NGC 2004 and NGC 2100 in the LMC. Be stars were identified by differencing R band and…

天体物理学 · 物理学 2009-10-30 Stefan C Keller , Peter R Wood , Michael S Bessell

The Large Magellanic Cloud (LMC) currently hosts around 23 high mass X-ray binaries (HMXBs) of which most are Be/X-ray binaries. The LMC XMM-Newton survey provided follow-up observations of previously known X-ray sources that were likely…

高能天体物理现象 · 物理学 2017-12-20 N. van Jaarsveld , D. A. H. Buckley , V. A. McBride , F. Haberl , G. Vasilopoulos , C. Maitra , A. Udalski , B. Miszalski

We report the results of an intense, spectroscopic survey of all 41 late-type, nitrogen-rich Wolf-Rayet (WR) stars in the Large Magellanic Cloud (LMC) observable with ground-based telescopes. This survey concludes the decade-long effort of…

天体物理学 · 物理学 2009-11-13 O. Schnurr , A. F. J. Moffat , N. St-Louis , N. I. Morrell , M. A. Guerrero-Roncel

The fourth part of the OGLE-III Catalog of Variable Stars presents 91 995 long-period variables (LPVs) in the Large Magellanic Cloud (LMC). This sample consists of 79 200 OGLE Small Amplitude Red Giants (OSARGs), 11 128 semiregular…

太阳与恒星天体物理 · 物理学 2014-11-20 I. Soszynski , A. Udalski , M. K. Szymanski , M. Kubiak , G. Pietrzynski , L. Wyrzykowski , O. Szewczyk , K. Ulaczyk , R. Poleski

The Small Magellanic Cloud is increasingly an invaluable laboratory for studying accreting and isolated X-ray pulsars. We add to the class of compact SMC objects by reporting the discovery of three new long period X-ray pulsars detected…

天体物理学 · 物理学 2010-05-12 D. J. Macomb , D. W. Fox , R. C. Lamb , T. A. Prince

We have observed a sample of 36 objects in the Small Magellanic Cloud (SMC) with the Infrared Spectrometer on the Spitzer Space Telescope. Nineteen of these sources are carbon stars. An examination of the near- and mid-infrared photometry…

天体物理学 · 物理学 2014-10-13 G. C. Sloan , K. E. Kraemer , M. Matsuura , P. R. Wood , S. D. Price , M. P. Egan

The Large Magellanic Cloud (LMC) has been observed by both the Midcourse Space Experiment (MSX) in the mid-infrared and the Two Micron All Sky Survey (2MASS) in the near-infrared. We have performed a cross-correlation of the 1806 MSX…

天体物理学 · 物理学 2009-11-06 Michael P. Egan , Schuyler D. Van Dyk , Stephan D. Price

We carried out a spectroscopic follow-up program of the four new stellar stream candidates detected by Belokurov & Koposov (2016) in the outskirts of the Large Magellanic Cloud (LMC) using FORS2 (VLT). The medium-resolution spectra were…

The Large Magellanic Cloud (LMC) is an irregular satellite galaxy of the Milky Way, which has been observed extensively in Very-High-Energy (VHE) gamma rays with the H.E.S.S. telescopes since 2004 and reaches now a total observation time of…

高能天体物理现象 · 物理学 2020-01-23 Nukri Komin , Maria Haupt , H. E. S. S. Collaboration

Results of the deep survey of the Large Magellanic Cloud (LMC), performed with the INTEGRAL observatory, are presented. The long exposure (~7 Ms) allowed us to detect twenty one sources in this sky region: ten belonging to the LMC itself (7…

高能天体物理现象 · 物理学 2015-06-05 S. A. Grebenev , A. A. Lutovinov , S. S. Tsygankov , I. A. Mereminskiy