Extragalactic observations with optical space arrays

Details Extragalactic observations with optical space arrays Extragalactic observations with optical space arrays

Apr 1985

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1985esasp.226....7b&link_type=abstract

In ESA Colloq. on Kilometric Opt. Arrays in Space p 7-9 (SEE N86-11096 01-89)

Astronomy and Astrophysics

Astronomy

Intergalactic Media, Michelson Interferometers, Spaceborne Astronomy, Spaceborne Telescopes, Synthetic Arrays, Gravitational Lenses, H Ii Regions, Quasars, Seyfert Galaxies, Supernovae, Very Long Base Interferometry

Scientific paper

Results achievable by optical arrays in space with resolution of 0.000001 arcsec are assessed from theoretical models predicting small scale features, and VLBI radio domain results. Extragalactic topics which could be investigated by a space interferometer allowing, in addition to high resolution imaging, the possibility of precise measurements of proper motions and parallaxes in nearby galaxies, are reviewed. Objects such as HII regions and supernovae in external galaxies, as well as the broad line region in Seyfert's and QSO's are good candidates for interferometric observations, while interesting effects caused by gravitational lenses can be detected.

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