Census of the Galaxy: Challenges for Photometry and Spectrometry with GAIA: Proceedings of the Workshop held in Vilnius, Lithuania 2-6 July 2001

by Vladas Vansevicius (Editor), Arunas Kucinskas (Editor), Jokubas Sudzius (Editor)

Overview

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.

Product Details

ISBN-13:	9781402005961
Publisher:	Springer Netherlands
Publication date:	06/30/2002
Series:	Proceedings of the First Gaia Photometry Working Group, Viln
Edition description:	2002
Pages:	194
Product dimensions:	6.10(w) x 9.25(h) x 0.02(d)

Table of Contents

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.