Basic principles of scanning space astrometry
(2011) In EAS Publications Series 45(GAIA: At the Frontiers of Astrometry). p.109-114- Abstract
- We outline the basic principles of scanning space astrometry, such as represented by Hipparcos, Gaia, and some other astrometric satellites planned or proposed. We explain the need for large-angle measurements, why these are essentially one-dimensional, how it is possible to determine absolute parallaxes, and why a Hipparcos-type scanning law is favourable. We discuss the choice of the basic angle between the two viewing directions, the principle of self-calibration, and why the resulting numerical problem must be difficult to solve.
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/1936457
- author
- Lindegren, Lennart LU and Bastian, U.
- organization
- publishing date
- 2011
- type
- Contribution to journal
- publication status
- published
- subject
- in
- EAS Publications Series
- volume
- 45
- issue
- GAIA: At the Frontiers of Astrometry
- pages
- 109 - 114
- publisher
- EDP Sciences
- external identifiers
-
- wos:000289226200018
- scopus:79956150413
- ISSN
- 1633-4760
- DOI
- 10.1051/eas/1045018
- language
- English
- LU publication?
- yes
- id
- 03bd6cdd-d624-4de8-9257-3391f23dcf04 (old id 1936457)
- date added to LUP
- 2016-04-01 10:42:17
- date last changed
- 2024-03-24 16:09:08
@article{03bd6cdd-d624-4de8-9257-3391f23dcf04, abstract = {{We outline the basic principles of scanning space astrometry, such as represented by Hipparcos, Gaia, and some other astrometric satellites planned or proposed. We explain the need for large-angle measurements, why these are essentially one-dimensional, how it is possible to determine absolute parallaxes, and why a Hipparcos-type scanning law is favourable. We discuss the choice of the basic angle between the two viewing directions, the principle of self-calibration, and why the resulting numerical problem must be difficult to solve.}}, author = {{Lindegren, Lennart and Bastian, U.}}, issn = {{1633-4760}}, language = {{eng}}, number = {{GAIA: At the Frontiers of Astrometry}}, pages = {{109--114}}, publisher = {{EDP Sciences}}, series = {{EAS Publications Series}}, title = {{Basic principles of scanning space astrometry}}, url = {{http://dx.doi.org/10.1051/eas/1045018}}, doi = {{10.1051/eas/1045018}}, volume = {{45}}, year = {{2011}}, }