منابع مشابه
Fluctuation Properties and Polar Emission Mapping of Pulsar B0834+06 at Decameter Wavelengths
Recent results regarding subpulse-drift in pulsar B0943+10 have led to the identification of a stable system of sub-beams circulating around the magnetic axis of the star. Here, we present single-pulse analysis of pulsar B0834+06 at 35 MHz, using observations from the Gauribidanur Radio Telescope. Certain signatures in the fluctuation spectra and correlations allow estimation of the circulation...
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We present an extensive analysis of large and medium scale radio sources observed with the Nançay Radioheliograph at 169 MHz, over more than four solar rotations in 1984 (during the declining phase of the solar cycle). The large scale emission is dominated by the coronal plateau, the radio counterpart of the coronal plasma sheet, which had an oscillatory structure around the equator. Medium sca...
متن کاملLaser power-meter comparison at far-infrared wavelengths and terahertz frequencies
We have evaluated the responsivity of seven different thermal detectors compared to an electrically calibrated photoacoustic reference detector at 119 μm (2.5 THz) and 394 μm (0.76 THz) laser wavelengths. Among the thermal detectors is an electrically calibrated thermopile having a vertically aligned carbon nanotube array as the absorber. We document the uncertainty contributions attributable t...
متن کاملPrimordial molecules at millimeter wavelengths
Chemistry plays a particular role in astrophysics. After atomic hydrogen, helium and their ions, the Universe probably contains more mass in molecules than in any other species. Molecule formation in the early, pre-galactic Universe may have had much to do with the formation of galaxies themselves. In this context the possible interaction between primordial molecules and photons of the Cosmic M...
متن کاملGravitational Lensing at Millimeter Wavelengths
The study of gas and dust at high redshift gives an unbiased view of star formation in obscured objects as well as the chemical evolution history of galaxies. With today’s millimeter and submillimeter instruments observers use gravitational lensing mostly as a tool to boost the sensitivity when observing distant objects. This is evident through the dominance of gravitationally lensed objects am...
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ژورنال
عنوان ژورنال: Symposium - International Astronomical Union
سال: 1990
ISSN: 0074-1809
DOI: 10.1017/s0074180900088574