Astronomy and Astrophysics – Astronomy
Scientific paper
Oct 2005
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005aabb.book..185r&link_type=abstract
In: Advances in astronomy. Editor: J. M. T. Thompson. Royal Society Series on Advances in Science, Vol. 1. London: Imperial Coll
Astronomy and Astrophysics
Astronomy
Radio Interferometers, Star Formation
Scientific paper
There are many natural sources of radio waves in the cosmos, from magnetised plasmas to molecular gas. These have two things in common; their emission can penetrate dust and clouds which block out optical light, and it can be studied using interferometry giving unparalleled angular resolution. This is invaluable for the study of star formation in our own and other galaxies and its place in stellar and cosmological evolution. Interferometric data comes at a price of complex data processing and very high data rates. The volume of radio astronomy data will increase over a thousandfold in the next few years as optical fibres are used to link ambitious new arrays. Fortunately the results will become more accessible thanks to the development of Virtual Observatories giving remote access not only to data but to data handling tools. Internationally agreed standards for describing images, spectra, catalogues and other data products allow astronomers to extract and compare results from the radio to the X-ray domain and beyond, without leaving their desks. These developments are illustrated by application to two problems; classification of young stellar objects in the Milky Way and the relationship between active galactic nuclei and starburst activity at high redshift.
Laing Robert A.
Richards Anita M. S.
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