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          Institute: MPI für Astrophysik     Collection: Stellar Astrophysics     Display Documents

ID: 13516.0, MPI für Astrophysik / Stellar Astrophysics
Spectroscopic study of blue compact galaxies - I. The spectra
Authors:Kong, X.; Cheng, F. Z.
Date of Publication (YYYY-MM-DD):2002-07
Title of Journal:Astronomy & Astrophysics
Journal Abbrev.:Astron. Astrophys.
Issue / Number:3
Start Page:845
End Page:854
Review Status:Peer-review
Audience:Experts Only
Abstract / Description:Blue compact galaxies are compact objects that are dominated by intense star formation. Most of them have dramatically different properties compared to the Milky Way and many other nearby galaxies. Using the IRAS, H I data, and optical spectra, we wanted to measure the current star formation rates, stellar components, metallicities, and star formation histories and evolution of a large blue compact galaxy sample. We anticipate that our study will be useful as a benchmark for studies of emission line galaxies at high redshift. In the first paper of this series, we describe the selection, spectroscopic observation, data reduction and calibration, and spectrophotometric accuracy of a sample of 97 luminous blue compact galaxies. We present a spectrophotometric atlas of rest-frame spectra, as well as tables of the recession velocities and the signal-to-noise ratios. The recession velocities of these galaxies are measured with an accuracy of deltaV < 67 km s(-1). The average signal-to-noise ratio of sample spectra is &SIM;51. The spectral line strengths, equivalent widths and continuum fluxes are also measured for the same galaxies and will be analyzed in the next paper of this series. The atlas and tables of measurements will be made available electronically.
Free Keywords:atlases; galaxies : active; galaxies : evolution; galaxies : stellar content; techniques : spectroscopic
External Publication Status:published
Document Type:Article
Communicated by:N. N.
Affiliations:MPI für Astrophysik
External Affiliations:Max Planck Inst Astrophys, Karl Schwarzschild Str 1, D-85741; Garching, Germany; Max Planck Inst Astrophys, D-85741 Garching, Germany; Univ Sci & Technol China, Ctr Astrophys, Hefei 230026, Peoples R China; Chinese Acad Sci, Natl Astron Observ, Beijing 100012, Peoples R China
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