عنوان

Census of the Galaxy: Challenges for Photometry and Spectrometry with GAIA

9789401003612

9789401039116

b408725

Census of the Galaxy: Challenges for Photometry and Spectrometry with GAIA

[Book]

Proceedings of the Workshop held in Vilnius, Lithuania 2-6 July 2001 /

edited by Vladas Vansevičius, Arūnas Kučinskas, Jokūbas Sūdžius.

Dordrecht :

Imprint: Springer,

2002.

GAIA: An astrometric and photometric survey of our galaxy -- GAIA: Photometry -- GAIA photometry: Selected topics -- Determination of stellar parameters with GAIA -- GAIA photometric system: Evaluation of performance -- GAIA photometric system: Simultaneous 4-D parameterization -- GAIA photometric system: Simulation of photometric observations -- The spectro point spread function for GAIA -- On the tolerances of filters for GAIA medium band photometric system -- Bandwidth effects in the 3G photometric system -- Transformations between Vilnius and Strömgren photometric systems -- Systematic errors of high-precision photometric catalogues -- The Asiago Database on Photometric Systems (ADPS) and the design of the GAIA photometric system -- BaSeL: A library of synthetic spectra and colours for GAIA -- Japanese astrometry satellite mission for infrared exploration -- GAIA: Astrophysical Issues -- Methods to account for interstellar extinction -- 3-D structure of the galactic interstellar matter: A contribution from GAIA -- A synthetic map of the galactic interstellar extinction -- Diffuse interstellar band at 862 nm as a reddening tracer for GAIA -- GAIA and population II visual binaries -- Unresolved binaries and the initial mass function -- Binary star detection with the GAIA radial velocity spectrometer -- Detection of extra-solar planets by GAIA photometry -- ?-Process elements in the galaxy: A possible GAIA contribution -- Asymptotic giant branch stars as tracers of star formation histories: the GAIA context -- Globular clusters in the large magellanic cloud: An impact from GAIA photometry -- GAIA and the extragalactic distance scale -- Discussion -- Ground based testing of the GAIA filters -- General discussion and photometric system for GAIA.

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Astrometry from space was performed for the first time and with great success by the ESA Hipparcos satellite (1989-93). This mission was designed as an as trometry mission, but the use of a photon counting detector made it possible to produce very important photometric results: the most accurate astronomical pho tometry ever by the main Hipparcos mission in a very broad band of 120000 stars, and the two-colour Tycho-2 photometry of 2.5 million stars. The cornerstone ESA mission GAIA was approved in October 2000 for launch not later than 2012. This mission will use CCDs in time-delayed integration mode instead of the photo-cathode detectors used in Hipparcos. Due to the higher quantum efficiency of the CCDs, simultaneous integration of many stars, and larger tele scope apertures GAIA will utilize the star light a million times more efficiently than Hipparcos, resulting in astrometry and multi-colour photometry for one billion stars. GAIA photometry is crucial for the scientific utilization of the astrometric results, and the photometric data have a high scientific content in themselves.

9789401039116

Springer eBooks

Physics.

Vansevičius, Vladas.

Kučinskas, Arūnas.

Sūdžius, Jokūbas.

SpringerLink (Online service)

20190301075300.0

[Book]

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