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J/A+AS/120/323 Long-slit spectroscopy of UCM galaxies (Gallego+ 1996)
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Observations of a complete sample of H{alpha} emission-line
galaxies. Long-slit spectroscopy of galaxies in UCM lists 1 and 2
Gallego J., Zamorano J., Rego M., Alonso O., Vitores A.G.
<Astron. Astrophys. Suppl. Ser. 120, 323 (1996)>
=1996A&AS..120..323G (SIMBAD/NED BibCode)
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ADC_Keywords: Galaxies, spectra
Keywords: galaxies: redshifts; starburst - surveys
Abstract:
Spectroscopic observations for the full sample of H{alpha}
emission-line galaxy candidates (ELGs) from the Universidad
Complutense de Madrid objective-prism survey Lists 1 and 2 have been
obtained in order to investigate fully the properties of the survey
constituents as well as the selection characteristics and completeness
limits of the survey itself. The spectroscopic data include redshifts,
line fluxes, equivalent widths, emission-line ratios, optical
reddening estimates and synthesized color indexes. We find that 74% of
the objects in this sample do exhibit emission lines. We compare our
observational data with parameters given in the published survey lists
in order to assess the usefulness of the latter. The different
emission-line galaxies have been classified according to their spectra
in several groups. Gray-scale images of the CCD spectra near the main
emission lines, spatial profiles at the continuum and the line for
[OIII]{lambda}5007 and H{alpha} lines, as well as plots of the coadded
spectra of selected galaxies are presented, and a number of peculiar
objects are described.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table4 117 212 Summary of emission-line intensities
table4.tex 78 1063 LaTeX version of table4
table5 83 214 Summary of spectroscopic data
table5.tex 78 553 LaTeX version of table5
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See also:
J/ApJS/95/387 : Survey of emission-line galaxies (Zamorano+ 1994)
J/ApJS/105/343 : Universidad Complutense de Madrid list 2 (Zamorano+ 1996)
J/A+AS/118/7 : Photometry & morphology of UCM galaxies (Vitores+, 1996)
Byte-by-byte Description of file: table4
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Bytes Format Units Label Explanations
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1- 9 A9 --- UCM UCM name (Zamorano et al., 1994ApJS...95..387Z)
10 A1 --- m_UCM Multiplicity index on UCM
12- 15 I4 % [OII] ? [OII]{lambda}3727 (1)
17- 19 I3 % Hgamma ? Hgamma{lambda}4340 line flux (1)
21- 23 I3 % Hbeta ? Hbeta{lambda}4861 line flux (1)
25- 27 I3 % [OIII]a ? [OIII]{lambda}4959 line flux (1)
29- 32 I4 % [OIII]b ? [OIII]{lambda}5007 line flux (1)
34- 36 I3 % HeI ? HeI{lambda}5976 line flux (1)
38- 40 I3 % [OI] ? [OI]{lambda}6300 line flux (1)
42- 45 I4 % [NII]a ? [NII]{lambda}6548 line flux (1)
47- 50 I4 % Halpha ? Halpha{lambda}6563 line flux (1)
52- 55 I4 % [NII]b ? [NII]{lambda}6584 line flux (1)
57- 59 I3 % [SII]a ? line flux of [SII]{lambda}6716 line flux (1)
61- 63 I3 % [SII]b ? line flux of [SII]{lambda}6731 line flux (1)
65- 68 I4 % [OII]c ? Reddening-corrected [OII] line flux (1)
70- 72 I3 % Hgammac ? Reddening-corrected Hgamma line flux (1)
74- 76 I3 % Hbetac ? Reddening-corrected Hbeta line flux (=100)
78- 80 I3 % [OIII]ac ? Reddening-corrected [OIII](4959A) line flux (1)
82- 85 I4 % [OIII]bc ? Reddening-corrected [OIII](5007A) line flux (1)
87- 89 I3 % HeIc ? Reddening-corrected HeI line flux (1)
91- 93 I3 % [OI]c ? Reddening-corrected [OI] line flux (1)
95- 98 I4 % [NII]ac ? Reddening-corrected [NII](6548A) line flux (1)
100-103 I4 % Halphac ? Reddening-corrected Halpha line flux (1)
105-108 I4 % [NII]bc ? Reddening-corrected [NII](6584A) line flux (1)
110-112 I3 % [SII]ac ? Reddening-corrected [SII](6716A) line flux (1)
114-116 I3 % [SII]bc ? Reddening-corrected [SII](6731A) line flux (1)
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Note (1): Line fluxes are relative to Hbeta=100 for all emission lines detected.
In case of no Hbeta line apparent, the fluxes are given relatives to
Halpha=100.
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Byte-by-byte Description of file: table5
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Bytes Format Units Label Explanations
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1- 9 A9 --- UCM Name in Zamorano+, 1994ApJS...95..387Z
10 A1 --- m_UCM Multiplicity index on UCM
12- 17 F6.4 --- z Heliocentric redshift
19- 20 I2 --- SNR Signal-to-noise ratio at the continuum
near Halpha (1)
23- 25 I3 0.1nm EW([OII]) ? Equivalent width for [OII]{lambda}3727
emission line
27- 29 I3 0.1nm EW(Hbeta) Equivalent width for Hbeta emission line
31- 34 I4 0.1nm EW([OIII]) Equivalent width for [OIII]{lambda}5007
emission line
37- 39 I3 0.1nm EW(Halpha) Equivalent width for Halpha emission line
41- 45 F5.2 10-17W/m2 FHbeta Observed Hbeta line flux
47- 51 F5.2 10-17W/m2 FHalpha ? Observed blend Halpha+[NII] line flux
53- 57 F5.2 mag b-v ? b-v synthetic color index
59- 63 F5.2 mag v-r ? v-r synthetic color index
65- 69 F5.3 mag E(B-V) ? B-V color excess
70 A1 --- u_E(B-V) Uncertainty flag on E(B-V)
72- 77 F6.2 10+8solLum L(Halpha) ? Observed Halpha luminosity
79- 83 A5 --- Spect Spectroscopic classification
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Note (1): SNR estimated by computing the ratio between the sigma in a 10nm band
centered at 6540Angstroem (rest wavelength) and the mean flux in the
same range
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Acknowledgements: Jesus Gallego <jgm@ucolick.org>
References:
Zamorano J. et al., 1994 A&AS 95, 387 =1994ApJS...95..387Z
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(End) Patricia Bauer [CDS] 21-May-1996