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J/A+A/389/845       Spectra of blue compact galaxies               (Kong+, 2002)

Spectroscopic study of blue compact galaxies. I. The spectra. Kong X., Cheng F.Z. <Astron. Astrophys. 389, 845 (2002)> =2002A&A...389..845K
ADC_Keywords: Galaxies, spectra Keywords: atlases - galaxies: active - galaxies: evolution - galaxies: stellar content - techniques: spectroscopic Abstract: 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, HI 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 δV<67km/s. The average signal-to-noise ratio of sample spectra is ∼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. File Summary:
FileName Lrecl Records Explanations
ReadMe 80 . This file table3.dat 99 97 Observation parameters for our 97 blue compact galaxies 132 3850 Calibrated spectra, Figure 4, part 1 132 3850 Calibrated spectra, Figure 4, part 2 132 3838 Calibrated spectra, Figure 4, part 3 132 3857 Calibrated spectra, Figure 4, part 4 132 3909 Calibrated spectra, Figure 4, part 5 132 3897 Calibrated spectra, Figure 4, part 6 132 3641 Calibrated spectra, Figure 4, part 7
See also: J/A+A/373/24 : Blue compact galaxies from SBS (Pustilnik+ 2001) J/A+AS/137/419 : Dynamics of blue compact galaxies I. The data (Oestlin + 1999) J/A+AS/139/1 : HI in Byurakan blue compact galaxies (Thuan+, 1999) J/ApJ/511/639 : Abundances in blue compact galaxies (Izotov+, 1999) Byte-by-byte Description of file: table3.dat
Bytes Format Units Label Explanations
1- 10 A10 --- Name Name of the galaxy 12- 20 A9 --- Fig Name of the figure containing the spectrum 22- 31 A10 "DD/MM/YYYY" Date(1) Observation date for the first time 34- 37 I4 s Exp(1) Exposure time for the first time 40- 43 F4.2 --- Air(1) Airmass at the observation 46- 55 A10 "DD/MM/YYYY" Date(2) Observation date for the second time 58- 61 I4 s Exp(2) ? Exposure time for the second time 64- 67 F4.2 --- Air(2) ? Airmass at the observation 70- 76 F7.1 km/s Vobs The recession velocities of galaxies 78 A1 --- leVobs [~] Limit flag on e_Vobs 79- 82 F4.1 km/s e_Vobs Uncertainties of the recession velocities 84- 91 F8.4 10-17W/m2/nm F5500 Flux on 5500Å (from 5475 to 5525Å) 94- 98 F5.1 --- SNRs Signal-to-noise ratios of the spectra
Acknowledgements: Xu Kong
(End) Patricia Bauer [CDS] 20-Jun-2002
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