L773:1609 042X
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- Söderhjelm, StaffanLund University,Lunds universitet,Astronomi - Genomgår omorganisation,Institutionen för astronomi och teoretisk fysik - Genomgår omorganisation,Naturvetenskapliga fakulteten,Lund Observatory - Undergoing reorganization,Department of Astronomy and Theoretical Physics - Undergoing reorganization,Faculty of Science (author)
Census of binaries - The big picture
- Article/chapterEnglish2005
Publisher, publication year, extent ...
- 2005
Numbers
- LIBRIS-ID:oai:lup.lub.lu.se:8657c608-b667-4856-b810-70012ab6ef5f
- https://lup.lub.lu.se/record/615846URI
Supplementary language notes
- Language:English
- Summary in:English
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Notes
- Gaia will observe huge numbers of binaries with a large range of periods. The present contribution tries to present some estimates of the expected number of detections and/or orbit determinations, based on simplified but large-scale simulations. The simulations have to model both a Galaxy with binaries, the instrument and observations, and the reduction programs. As in previous studies, there are marked distance-effects, with the solar neighbourhood (within a few hundred pc) much more completely sampled than more typical (few kpc) Gaia distances. The large number of simulated solutions allows also a study of some systematic effects in the astrometry of undetected binaries.
Subject headings and genre
- NATURVETENSKAP Fysik Astronomi, astrofysik och kosmologi hsv//swe
- NATURAL SCIENCES Physical Sciences Astronomy, Astrophysics and Cosmology hsv//eng
- Gaia reductions
- Statistical distributions
- Galaxy model
- Binary stars
- Systematic effects
- Gaia
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- Astronomi - Genomgår omorganisationInstitutionen för astronomi och teoretisk fysik - Genomgår omorganisation (creator_code:org_t)
Related titles
- In:European Space Agency, (Special Publication) ESA SP576, s. 97-1041609-042X0379-6566
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