منابع مشابه
OBSERVATIONS OF THE 1991 ECLIPSE AT 3.5 mm WAVELENGTH
We report preliminary results of the partial eclipse seen from the BIMA millimeterwavelength interferometer in northern California. The use of an interferometer has many advantages over previous single-dish eclipse observations at 3 mm, and in particular it allows a quite different type of measurement of the height of the "3-mm limb" which is direct and precise : we find it to be 11.9" ± 0.4" a...
متن کاملProcesses of auroral thermal structure at Jupiter: Analysis of multispectral temperature observations with the Jupiter Thermosphere General Circulation Model
[1] We use our three-dimensional Jupiter Thermosphere General Circulation Model (JTGCM) to quantify thermal processes that take place in the auroral thermosphere. These processes tend to control the thermal budget in the Jovian ovals and polar caps and maintain thermospheric temperatures consistent with those derived from multispectral observations of Jupiter’s aurora. The main heat source in t...
متن کاملVlba Imaging at 7 Mm and Linear Polarimetric Observations at 6 Cm and 3 Mm of Sgr A* 1. 7 Mm Vlba Imaging of Sgr A*
We summarize the results of 7 mm VLBA imaging of Sgr A* and discuss some of the diiculties of accurately constraining the size of Sgr A* with VLBI observations. Our imaging results are fully consistent with the hypothesis that the VLBA image of Sgr A* is a resolved elliptical Gaussian caused by the scattering of an intervening thermal plasma. We show that determination of the minor axis size at...
متن کامل(Sub)mm continuum observations of NGC 6334A
We present 2 mm, 1.1 mm, 850 μm, 800 μm, and 450 μm mapping and photometry of the field surrounding NGC 6334A. We find a prominent east–west dust ridge, approximately centered on NGC 6334A. We interpret this ridge as a collimating dust disk or torus and derive a mass of ∼60 M from our continuum data. It is possible though, that this disk– like structure is contaminated on the west-side by a pro...
متن کامل- mm Observations of Luminous Infrared Galaxies
Measurements at a wavelength of 1.25 mm have been obtained for 17 IRAS galaxies selected on the basis of high far-infrared luminosity. These measurements are used to estimate the lower and upper limits to the mass of cold dust in infrared galaxies. As a lower limit on dust mass, all of the galaxies can be successfully modeled without invoking any dust colder than the dust responsible for the 60...
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: Journal of Research of the National Bureau of Standards, Section D: Radio Science
سال: 1965
ISSN: 0502-2568
DOI: 10.6028/jres.069d.168