Astronomy and Astrophysics – Astronomy
Scientific paper
Aug 1986
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1986mnras.221..727h&link_type=abstract
Monthly Notices of the Royal Astronomical Society (ISSN 0035-8711), vol. 221, Aug. 1, 1986, p. 727-737.
Astronomy and Astrophysics
Astronomy
3
Astronomical Spectroscopy, Dwarf Galaxies, Emission Spectra, Spectral Line Width, Virgo Galactic Cluster, Compact Galaxies, H Ii Regions, Luminosity, Spatial Distribution, Star Formation
Scientific paper
Spectroscopic observations, obtained at 490-690 nm using a grism spectrograph with a 1.4-arcsec-wide slit and a CCD detector (dispersion 4 A/pixel at scale 0.68 arcsec/pixel) on the 88-inch University of Hawaii telescope on March 22-24, 1983, are reported for five emission-line galaxies identified in a search for quasars on UK Schmidt Telescope plates of the Virgo region (He et al., 1984). The data are presented in tables, spectra, and line-ratio plots and characterized. The systems are found to have M(V) from -19 to -14, strong narrow lines of large equivalent width, and no evidence of power-law excitation or broad line components, and are classified as compact metal-poor extragalactic H II regions or blue compact dwarf galaxies. Three of the galaxies (EG4, HII2, and OEG1) are shown to be members of the Virgo cluster.
He Xian-Tu
Impey Chris David
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