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...
متن کاملInfrared Emission from Interstellar Dust. Iii. the Small Magellanic Cloud
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 ...
متن کاملThe Interstellar Medium in the Magellanic Bridge
HST ultra-violet and ground-based optical spectroscopy are presented for DI 1388, an early-type star in the Magellanic Bridge. These data have been supplemented with H I radio mapping of its environment. The spectroscopy shows interstellar components at LSR velocities of 0, 90 and 200 km s-l corresponding to the local ISM, a high velocity cloud and the Magellanic Bridge ISM, respectively. The l...
متن کاملTHE GLOBAL CONTENT, DISTRIBUTION, AND KINEMATICS OF INTERSTELLAR O vi IN THE LARGE MAGELLANIC CLOUD
We present Far Ultraviolet Spectroscopic Explorer (FUSE) observations of interstellar O vi absorption toward 12 early-type stars in the LargeMagellanic Cloud (LMC). The observations have a velocity resolution of.20 km s 1 (FWHM) and clearly show O vi 1031.926 Å absorption at LMC velocities toward all 12 stars. From these observations we derive column densities of interstellar O vi in this nearb...
متن کاملMagellanic-cloud-type Interstellar Dust along Low Density Sightlines in the Galaxy
We have studied the UV extinction properties along 30 Galactic sightlines using data from the International Ultraviolet Explorer (IUE) archive that have never been previously examined. These distant (d > 1 kpc) sightlines were selected to investigate the distribution and physical conditions of gas located in low density regions of the Galactic disk and halo. The average densities along these si...
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ژورنال
عنوان ژورنال: Symposium - International Astronomical Union
سال: 1999
ISSN: 0074-1809
DOI: 10.1017/s0074180900117334