Interstellar extinction in the Small Magellanic Cloud
نویسندگان
چکیده
منابع مشابه
Dust in the Small Magellanic Cloud: Interstellar Polarization and Extinction
The typical extinction curve for the Small Magellanic Cloud (SMC), in contrast to that for the Galaxy, has no bump at 2175 Å and has a steeper rise into the far ultraviolet. For the Galaxy the interpretation of the extinction and, therefore, the dust content of the interstellar medium has been greatly assisted by measurements of the wavelength dependence of the polarization. To the present no s...
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The recent discovery that the UV dust extinction in starburst galaxies is similar to that found in the Small Magellanic Cloud (SMC) motivated us to re-investigate the ultraviolet (UV) extinction found in the SMC. We have been able to improve significantly on previous studies by carefully choosing pairs of well matched reddened and unreddened stars. In addition, we benefited from the improved S/...
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The infrared emission from interstellar dust in the Small Magellanic Cloud is modeled using a mixture of amorphous silicate and carbonaceous grains, including a population of polycyclic aromatic hydrocarbon (PAH) molecules. We show the following: (1) This dust model is able to reproduce the spectral energy distribution from near-IR to far-IR for the entire SMC Bar region, provided that the PAH ...
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We present our catalog of U , B, V , and I stellar photometry of the central 18 sq.◦ area of the Small Magellanic Cloud. We combine our data with the 2MASS and DENIS catalogs to provide, when available, U through KS data for stars. Internal and external astrometric and photometric tests using existing optical photometry (U , B, and V from Massey’s bright star catalog; B, V , and I from the micr...
متن کاملThe Morphologies of the Small Magellanic Cloud.
We compare the distribution of stars of different spectral types, and hence mean age, within the central SMC and find that the asymmetric structures are almost exclusively composed of young main-sequence stars. Because of the relative lack of older stars in these features and the extremely regular distribution of red giant and clump stars in the SMC central body, we conclude that tides alone ar...
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ژورنال
عنوان ژورنال: Monthly Notices of the Royal Astronomical Society
سال: 1982
ISSN: 0035-8711,1365-2966
DOI: 10.1093/mnras/201.1.1p