منابع مشابه
Multifrequency Microwave Emission from Forests
Retrieving information on forest biomass and soil under vegetation is crucial for all studies concerning global changes and carbon balance. The capability of microwaves in penetrating vegetation covers is well known, but only few studies have investigated emission from soil under forests and the contribution of single tree elements to total radiation. To further examine quantitatively these asp...
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We find a new two-temperature hot branch of equilibrium solutions for stationary accretion disks around black holes. In units of Eddington accretion rate defined as 10LEdd/c , the accretion rates to which these solutions correspond are within the range ṁ1 <∼ ṁ <∼ 1, here ṁ1 is the critical rate of advection-dominated accretion flow (ADAF). In these solutions, the energy loss rate of the ions by...
متن کاملMolecular hydrogen emission from protoplanetary disks
We have modeled self-consistently the density and temperature profiles of gas and dust in protoplanetary disks, taking into account irradiation from a central star. Making use of this physical structure, we have calculated the level populations of molecular hydrogen and the line emission from the disks. As a result, we can reproduce the observed strong line spectra of molecular hydrogen from pr...
متن کاملAnisotropic hot electron emission from fullerenes.
Photoelectron spectra for fullerenes C(60) and C(70) ionized using 800 nm laser pulses with pulse durations from 120 to 1000 fs show thermal electron kinetic energy distributions but they also exhibit angular anisotropy with respect to the laser light polarization. The effective temperature of electrons, measured along the laser polarization direction, is significantly higher than in the perpen...
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Being dominated by non-thermal (synchrotron and inverse Compton) emission from a relativistic jet, blazars offer important clues to the structure and radiative processes in extragalactic jets. Crucial information is provided by blazars’ spectral energy distributions from radio to gamma-rays (GeV and TeV energies), their trends with bolometric luminosity, and their correlated variability propert...
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ژورنال
عنوان ژورنال: The Astrophysical Journal Supplement Series
سال: 1994
ISSN: 0067-0049,1538-4365
DOI: 10.1086/192009