Astronomy and Astrophysics – Astronomy
Scientific paper
Aug 1988
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1988sci...241..905w&link_type=abstract
Science (ISSN 0036-8075), vol. 241, Aug. 19, 1988, p. 905.
Astronomy and Astrophysics
Astronomy
Big Bang Cosmology, Black Holes (Astronomy), Quasars, Radio Galaxies, Red Shift, Sky Surveys (Astronomy), Elliptical Galaxies, Seyfert Galaxies, Solar System, Universe
Scientific paper
A high-redshift radio galaxy survey has detected a galaxy, designated 4C41.17, that is estimated to be about 15 billion light years distant. 4C41.17 is a radio galaxy and, accordingly, one of the most powerful radio emitters in the universe. Flanking the central galaxy are two lobes of magnetically-confined plasma, each containing a total energy equivalent to more than 10 billion supernovas. At the redshifted Ly-alpha wavelength of ionized hydrogen, this galaxy exhibits a faint hydrogen halo that stretches for about 1 million light-years in the direction of the radio lobes. This bears out the contention that radio galaxies exhibit strong indications of evolution.
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