Other
Scientific paper
Oct 1991
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991apj...380..334m&link_type=abstract
Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 380, Oct. 20, 1991, p. 334-343.
Other
59
Astronomical Spectroscopy, Galactic Clusters, Galactic Evolution, Gravitational Effects, Absorption Spectra, Arcs, Emission Spectra, Lyman Alpha Radiation, Red Shift, Star Formation Rate
Scientific paper
Recent spectroscopic data on the blue giant arc in Cl 2244 - 02, on the arclet A5 in Abell 370, and on the split arc in Cl 0024 + 1654 are analyzed. A probable redshift of 2.237 is derived for the source of the Cl 2244 - 02 arc, making this object one of the most distant 'field' galaxies known to date. A star formation rate is estimated from the Ly-alpha intensity and compared to other distant field galaxies. For A5, no prominent emission line is found, but three absorption lines indicate a tentative redshift of 1.306. The spectra of the four parts of the Cl 0024 + 1654 arc look quite similar, but the absence of any spectral feature allows only the determination of a redshift range between 1 and 2.1.
Cailloux Mireille
Fort Bernard
Mathez Guy
Mellier Yannick
Soucail Genevieve
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