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Basic principles of scanning space astrometry

Lindegren, Lennart LU and Bastian, U. (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.
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author
organization
publishing date
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
2011-04-29 15:48:59
date last changed
2017-07-23 03:21:54
@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},
  volume       = {45},
  year         = {2011},
}