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Title:
From 1000 AU to 1000 pc: high proper-motion stars in the solar neighbourhood radio sources in the sigma Orionis cluster, and new X-ray stars surrounding Alnilam
Authors:
Caballero, J. A.
Publication:
Multi-wavelength Astronomy and Virtual Observatory, Proceedings of the EURO-VO Workshop, held at the European Space Astronomy Centre of ESA, Villafranca del Castillo, Spain, 1-3 December, 2008, Eds.: D. Baines and P. Osuna, Published by the European Space Agency., p.3
Publication Date:
07/2009
Origin:
AUTHOR
Bibliographic Code:
2009mavo.proc....3C

Abstract

The Virtual Observatory is useful. I summarise some of my works where I extensively use the Aladin sky atlas. Topics cover from the search and common proper motion confirmation of very low-mass stars and brown dwarfs in wide (ρ > 1000 AU) binaries and multiple systems, to the identification and characterisation of stellar and substellar populations in young open clusters and OB associations at heliocentric distances of up to 1000 pc. I present three practical examples of what one can do with Aladin in one morning: a fruitful proper-motion search of objects with available ugrizJHKs photometry, an analysis of the 21 cm radio sources towards the young σ Orionis cluster, and a novel study of X-ray young stars surrounding Alnilam in the Orion Belt.
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