Please note that eDoc will be permanently shut down in the first quarter of 2021!      Home News About Us Contact Contributors Disclaimer Privacy Policy Help FAQ

Home
Search
Quick Search
Advanced
Fulltext
Browse
Collections
Persons
My eDoc
Session History
Login
Name:
Password:
Documentation
Help
Support Wiki
Direct access to
document ID:


          Institute: MPI für Astronomie     Collection: Publikationen_mpia     Display Documents



  history
ID: 448041.0, MPI für Astronomie / Publikationen_mpia
A library of galaxy spectra for Gaia
Authors:Tsalmantza, P.; Kontizas, M.; Rocca-Volmerange, B.; Bailer-Jones, C. A. L.; Kontizas, E.; Bellas-Velidis, I.; Korakitis, R.; Livanou, E.; Dapergolas, A.; Vallenari, A.; Fioc, M.
Language:English
Publisher:AIP, Springer
Date of Publication (YYYY-MM-DD):2009
Title of Proceedings:Probing Stellar Populations Out to the Distant Universe
Start Page:79
End Page:82
Title of Series:AIP Conference Proceedings
Volume (in Series):1111
Place of Conference/Meeting:Cefalu, Sicily, Italy
Review Status:not specified
Audience:Experts Only
Abstract / Description:The ESA satellite mission Gaia will acquire spectrophotometric observations of several million unresolved galaxies during its five years of operation. In order to implement a classification scheme for these observations we need to build a new library of galaxy spectra which covers the necessary parameter space. Using the evolutionary code PÉGASE.2 we have produced a library of 28885 synthetic galaxy spectra at zero redshift covering four general spectral types of galaxies over the wavelength range from 250 to 1050 nm, at a sampling of 1 nm or less. The library was also reproduced for four random values of redshift in the range of 0-0.2 and it is computed on a random grid of four key astrophysical parameters (3 for SFR and 1 for timescale of the infall of gas). The synthetic library was compared with various photometric and spectroscopic observations (e.g. from SDSS) and found in good agreement with them.
Free Keywords:red shift; galaxies; gamma-ray spectroscopy
Comment of the Author/Creator:Date: 2009, May 1, 2009
External Publication Status:published
Document Type:Conference-Paper
Communicated by:N. N.
Affiliations:MPI für Astronomie
Identifiers:ISBN:978-0-7354-0648-3 [ID No:1]
URL:http://adsabs.harvard.edu/abs/2009AIPC.1111...79T [ID No:2]
The scope and number of records on eDoc is subject to the collection policies defined by each institute - see "info" button in the collection browse view.