Astronomy and Astrophysics – Astronomy
Scientific paper
Mar 1988
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1988faom.work..105d&link_type=abstract
In NASA, Lyndon B. Johnson Space Center, Future Astronomical Observatories on the Moon p 105-112 (SEE N89-15810 07-89)
Astronomy and Astrophysics
Astronomy
Interstellar Space, Lunar Bases, Lunar Observatories, Radio Waves, Very Long Baseline Array (Vlba), Wave Scattering, Astronomical Observatories, Diffraction Patterns, Interplanetary Medium, Radio Sources (Astronomy), Scintillation, Spectral Resolution
Scientific paper
Interstellar scattering can irretrievably blur the images of compact radio sources when examined with extremely high resolution. Because of this effect, diffraction limited observations of extragalactic sources with an Earth-Moon baseline will only be possible at frequencies above about 7 GHz, in which case the resolution will be approx. = to or less than 20 microarcsec. Preliminary observations to determine the potential usefulness of such resolving power are discussed. The simplest of these would consist of a search for interstellar scintillations in compact sources at 10 GHz, which would provide an effective resolution about equal to that of an Earth-Moon baseline at this frequency. Also important in this context is the development of very long baseline interferometry in near-Earth orbit, as any ultra high resolution observations, if appropriate, would require intermediate baselines for mapping.
No associations
LandOfFree
Radiowave scattering and ultra-long-baseline interferometry does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Radiowave scattering and ultra-long-baseline interferometry, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Radiowave scattering and ultra-long-baseline interferometry will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1673863