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Dust in the small magellanic cloud (Document No: 19940025193)
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Magalhaes, Antonio Mario |
| Copyright Year | 1994 |
| Description | Observations of reddened stars in the Small Magellanic Cloud (SMC) indicate that the interstellar grains in that galaxy may show distinct optical properties from those in the galaxy. The ultimate aim of this research is to determine the extinction law in the direction of these three objects, correlating the results with polarimetric data and building dust models that fit both extinction and polarization. UV extinction and optical polarization data suggest that stars with the 'typical' SMC extinction, i.e., with no bump at bluer wavelengths than the galaxy, have wavelengths of maximum polarization smaller than the galactic average. This shows that the carbon abundance is not the only parameter distinguishing the dust properties for the galaxy and the SMC, the grain size distribution being another distinguishing factor. |
| File Size | 121895 |
| Page Count | 5 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_19940025193 |
| Archival Resource Key | ark:/13960/t3pw1dt6s |
| Language | English |
| Publisher Date | 1994-04-27 |
| Access Restriction | Open |
| Subject Keyword | Astrophysics Ultraviolet Radiation Particle Size Distribution Optical Polarization Magellanic Clouds Cosmic Dust Interstellar Extinction Optical Properties Stellar Radiation Polarimetry Interstellar Matter Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Technical Report |
