中文
相关论文

相关论文: A stellar over-density associated with the Small M…

200 篇论文

The discovery of multiple MSs in NGC2808 and Omega Centauri, and multiple SGBs in NGC1851 and NGC6388 has challenged the long-held paradigm that GCs consist of simple stellar populations. This picture has been further complicated by recent…

天体物理学 · 物理学 2009-11-13 A. P. Milone , L. R. Bedin , G. Piotto , J. Anderson

The structure of the Small Magellanic Cloud (SMC) is very complex, in particular in the periphery that suffers more from the interactions with the Large Magellanic Cloud (LMC). A wealth of observational evidence has been accumulated…

We present optical, radio and X-ray data that confirm a new supernova remnant (SNR) in the Large Magellanic Cloud (LMC) discovered using our deep H-alpha imagery. Optically, the new SNR has a somewhat filamentary morphology and a diameter…

星系天体物理 · 物理学 2016-03-08 Warren A. Reid , Milorad Stupar , Luke M. Bozzetto , Quentin A. Parker , Miroslav D. Filipovic

We present the first results from the Swift Ultraviolet Survey of the Magellanic Clouds (SUMaC), the highest resolution ultraviolet (UV) survey of the Magellanic Clouds yet completed. In this paper, we focus on the Small Magellanic Cloud…

星系天体物理 · 物理学 2017-04-19 Lea M. Z. Hagen , Michael H. Siegel , Erik A. Hoversten , Caryl Gronwall , Stefan Immler , Alex Hagen

We present for the first time extended stellar density and/or surface brightness radial profiles for almost all the known Large Magellanic Cloud (LMC) old globular clusters (GCs). These were built from DECam images and reach out to ~ 4…

星系天体物理 · 物理学 2018-05-02 A. E. Piatti , A. D. Mackey

Increasing evidences suggest that the Galactic halo is lumpy on kpc scales due to the accretion of at least a dozen small galaxies (LMC/SMC, Sgr, Fornax etc.). Faint stars in such lumpy structures can significant microlense a background…

天体物理学 · 物理学 2009-10-30 HongSheng Zhao

We present results from photometric and spectroscopic data obtained with SOAR and Gemini observatory facilities in the field of a recently discovered star cluster. The cluster, projected towards the Eastern side of the outer disc of the…

星系天体物理 · 物理学 2018-10-17 Andrés E. Piatti , Ricardo Salinas , Eva K. Grebel

We report the discovery of 15 stars in the H3 survey that lie, in projection, near the tip of the trailing gaseous Magellanic Stream (MS). The stars have Galactocentric velocities $< -155$ km s$^{-1}$, Galactocentric distances of $\approx…

We present FORS2@VLT follow-up photometry of YMCA-1, a recently discovered stellar system located 13\degr~from the Large Magellanic Cloud (LMC) center. The deep color-magnitude diagram (CMD) reveals a well-defined main sequence (MS) and a…

We report the first detection of hot molecular cores in the Small Magellanic Cloud, a nearby dwarf galaxy with 0.2 solar metallicity. We observed two high-mass young stellar objects in the SMC with ALMA, and detected emission lines of CO,…

星系天体物理 · 物理学 2023-04-12 Takashi Shimonishi , Kei E. I. Tanaka , Yichen Zhang , Kenji Furuya

The spatial distribution of sources populating different regions of the colour-magnitude diagram (I-J, I) extracted from the DENIS catalogue towards the Magellanic Clouds (DCMC -- Cioni et al. 2000) reveal significantly different…

天体物理学 · 物理学 2007-05-23 Maria-Rosa L. Cioni , Harm J. Habing , Frank P. Israel

[Abridged] We present first results from a large-area (~80degx20deg), sparsely sampled two-filter (B,R) imaging survey towards the Canis Major stellar over-density, claimed to be a disrupting Milky Way satellite galaxy. Utilizing stellar…

天体物理学 · 物理学 2008-11-26 D. J. Butler , D. Martinez-Delgado , H-W. Rix , J. Penarrubia , J. T. A. de Jong

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

We trace the star formation regions in the SMC and study their properties. The size and spatial distribution of these regions is found to support the hierarchical scenario of star formation, whereas, the evaluation of their intensity,…

天体物理学 · 物理学 2008-11-26 E. Livanou , I. Gonidakis , E. Kontizas , U. Klein , M. Kontizas , D. Kester , Y. Fukui , N. Mizuno , P. Tsalmantza

We present a high quality CMD for a 36'x 36' field located 8 degrees (7 kpc) from the LMC center, as well as a precise determination of the LMC surface brightness derived from the resolved stellar population out to this large galactocentric…

天体物理学 · 物理学 2009-11-10 C. Gallart , P. B. Stetson , E. Hardy , F. Pont , R. Zinn

In the context of a project aimed at characterizing the dynamical evolution of old globular clusters in the Large Magellanic Cloud, we have secured deep HST/WFC3 images of the massive cluster NGC 1835. In the field of view of the acquired…

We use data from the Magellanic Edges Survey (MagES) in combination with Gaia EDR3 to study the extreme southern outskirts of the Small Magellanic Cloud (SMC), focussing on a field at the eastern end of a long arm-like structure which wraps…

星系天体物理 · 物理学 2022-10-26 L. R. Cullinane , A. D. Mackey , G. S. Da Costa , S. E. Koposov , D. Erkal

We derive the spatially-resolved star formation history (SFH) for a $96$ deg$^2$ area across the main body of the Large Magellanic Cloud (LMC), using the near-infrared photometry from the VISTA survey of the Magellanic Clouds (VMC). The…

We observed six fields of the Small Magellanic Cloud (SMC) with the Advanced Camera for Survey on board the Hubble Space Telescope in the F555W and F814W filters. These fields sample regions characterized by very different star and gas…

We use the star formation history of the Small Magellanic Cloud (SMC) to place quantitative limits on the effect of tidal interactions and gas infall on the star formation and chemical enrichment history of the SMC. The coincident timing of…

天体物理学 · 物理学 2009-11-10 Dennis Zaritsky , Jason Harris