INTERSTELLAR DUST IN M51 FROM IRC IMAGES
نویسندگان
چکیده
منابع مشابه
Dust emission from IRC + 10216
Infrared emission from the dust shell around IRC+10216 is analysed in detail, employing a self-consistent model for radiatively driven winds around late-type stars that couples the equations of motion and radiative transfer in the dust. The resulting model provides agreement with the wealth of available data, including the spectral energy distribution in the range 0.5–1000 μm, and visibility an...
متن کاملPolarized Emission from Interstellar Dust
Observations of far-infrared (FIR) and submillimeter (SMM) polarized emission are used to study magnetic fields and dust grains in dense regions of the interstellar medium (ISM). These observations place constraints on models of molecular clouds, star-formation, grain alignment mechanisms, and grain size, shape, and composition. The FIR/SMM polarization is strongly dependent on wavelength. We h...
متن کاملInterstellar Dust
In the interstellar medium of the Milky Way, certain elements – e.g., Mg, Si, Al, Ca, Ti, Fe – reside predominantly in interstellar dust grains. These grains absorb, scatter, and emit electromagnetic radiation, heat the interstellar medium by photoelectric emission, play a role in the ionization balance of the gas, and catalyze the formation of molecules, particularly H2. I review the state of ...
متن کاملInfrared Emission from Interstellar Dust. Ii. the Diffuse Interstellar Medium
We present a quantitative model for the infrared emission from dust in the di†use interstellar medium. The model consists of a mixture of amorphous silicate grains and carbonaceous grains, each with a wide size distribution ranging from molecules containing tens of atoms to large grains km in diameter. Z1 We assume that the carbonaceous grains have properties like polycyclic aromatic hydrocarbo...
متن کاملInterstellar Dust Grains
This review surveys the observed properties of interstellar dust grains: the wavelength-dependent extinction of starlight, including absorption features, from UV to infrared; optical luminescence; infrared emission; microwave emission; optical, UV, and X-ray scattering by dust; and polarization of starlight and of infrared emission. The relationship between presolar grains in meteorites and the...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Publications of The Korean Astronomical Society
سال: 2012
ISSN: 1225-1534
DOI: 10.5303/pkas.2012.27.4.253