The Digitized First Byurakan Survey

Details The Digitized First Byurakan Survey The Digitized First Byurakan Survey

Dec 2008

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2008dfbs.book.....m&link_type=abstract

ARACNE Editrice, Rome, Italy, 78 pages

Computer Science

Databases

3

Surveys, Databases, Low-Dispersion Spectra, Agn

Scientific paper

Stars and Galaxies in the Universe are evolving objects: their physical conditions change with time, and consequently the radiation emitted by them which brings us information about their nature also changes. This evolution generally happens on time scales much longer than human life, so that it cannot be detected. Sometimes, however, large variations happen on time scales extremely shorter than cosmic evolution, down to fractions of a second. Examples of such processes are the explosion of a star at the end of its life (Supernova explosions) or fast variations in the nuclei of some distant active galactic nuclei. One of the most important achievements of modern astronomy was the understanding of the role of such phenomena in the general evolution of the Universe. The "historic" nature of astronomical research has become therefore more evident, and the need for keeping observational data collected over the years to discover changes in astronomical objects is more and more important to the astronomical community. Furthermore, in a more general context, it is important to keep track of the intellectual legacy that made possible the realization of astronomical discoveries, which are part of the more evident, and the need for keeping observational data collected over the years to discover changes in astronomical objects is more and more important to the astronomical community. Furthermore, in a more general context, it is important to keep track of the intellectual legacy that made possible the realization of astronomical discoveries, which are part of the general history of human Science. For these reasons, in the framework of a collaboration between the members of the group of High Energy Cosmic Sources (SCAE) within the Department of Physics at the University La Sapienza, Rome, and scientists of the Byurakan Astrophysical Observatory, we decided to preserve the large collection of spectral astronomical plates known as the First Byurakan Survey (FBS) by transforming it into an electronic archive, accessible by computers through the World Wide Web. This collection was obtained by Benjamin E. Markarian and collaborators in the years 1965-80 and covers a large part of the sky observable at our latitudes. The Infrared Projects Group within the Department of Astronomy at Cornell University (USA) joined this project. The project has been carried on during several years and required a substantial e ort, largely sustained by funding from the Sapienza University and the Italian Ministry of Research (MIUR), with additional support from the US Civilian and Research Development Foundation. Today the results are freely accessible to the world astronomical community through a dedicated web interface and include digitization of 90% of the FBS. This book describes the history of the FBS, the most important results obtained with it, and presents the electronic version (Digitized First Byurakan Survey, DFBS) developed by us. It describes also in detail the procedures for its scientific use and some examples of research with the DFBS.

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