منابع مشابه
Effects of clumping on temperature I: externally heated clouds
We present a study of radiative transfer in dusty, clumpy star-forming regions. A series of self-consistent, three-dimensional, continuum radiative transfer models are constructed for a grid of models parameterized by central luminosity, filling factor, clump radius, and face-averaged optical depth. The temperature distribution within the clouds is studied as a function of this parameterization...
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A photoionization study of CH3I in the presence of SF6 perturbers (up to the perturber density 9.75 x 10 cm) disclosed a red shift of autoionizing features that depends linearly on the perturber number density. From the perturber induced energy shifts of the CH3I nd! Rydbergs (n=9,10,11,12), the electron scattering length of SF6 was found to be A = -0.484 nm, which accords with previously repor...
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The plasma potential, V(p), is a key quantity in experimental plasma physics. Its spatial gradients directly yield the electrostatic field present. Emissive probes operating under space-charge limited emission conditions float close to V(p) even under time-varying conditions. Throughout their long history in plasma physics, they have mostly been constructed with resistively heated tungsten wire...
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Very low temperatures stress a circuit breaker in a complex manner. Mixed-gas circuit breakers were developed for use at temperatures as low as -50C. These breakers utilize a gas mixture of SF6 and CF4 or SF6 and N2 to prevent condensation of the SF6 gas and have been type tested at -50C to ensure travel characteristics, operating times, and gas tightness are acceptably affected. Today’s mixed-...
متن کاملTemperature Inversion in the Surface of Externally Heated Optically Thick Multigrain Dust Clouds
It was recently discovered that the temperature in the surface layer of externally heated optically thick gray dust clouds increases with the optical depth for some distance from the surface, as opposed to the normal decrease in temperature with distance in the rest of the cloud. This temperature inversion is a result of efficient absorption of diffuse flux from the cloud interior by the surfac...
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ژورنال
عنوان ژورنال: SHINKU
سال: 1989
ISSN: 0559-8516,1880-9413
DOI: 10.3131/jvsj.32.232