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Zoology and wildlife conservation

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Abstracts » Zoology and wildlife conservation

The formation of cluster elliptical galaxies as revealed by extensive star formation

Article Abstract:

Research reveals that the synchronous formation of the luminous elliptical galaxies occurs at the centres of galaxy clusters as indicated by the prevalence, orientation, and masses of the submillimetre companion galaxies. Data on the submillimetre mapping of seven high-redshift radio galaxies confirm the regions of massive star-formation activity in the radio galaxies.

Author: Ivison, R.J., Small, Ian R., Stevens, J.A., Dunlop, J.S., Percival, W.J., Hughes, D.H., Rottgering, H.J.A., van Breugel, W.J.M., Reuland, M.
Publisher: Macmillan Publishing Ltd.
Publication Name: Nature
Subject: Zoology and wildlife conservation
ISSN: 0028-0836
Year: 2003
United Kingdom, Mexico, Discovery and exploration, Stars, Galaxy clusters, Star clusters, Astrographic catalog and chart, Radio galaxies, Astronomical charts

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A median redshift of 2.4 for galaxies bright at submillimetre wavelengths

Article Abstract:

Study of submillimetre galaxies is difficult due to the dust clouds that obscure emitted light. Analysis of spectroscopic redshifts for ten submillimetre galaxies discovered by radio telescopes shows a median redshift of 2.4, indicating that due to their extreme density, they are an important component of star formation at high redshift.

Author: Ivison, R.J., Chapman, S.C., Blain, A.W., Small, Ian R.
Publisher: Macmillan Publishing Ltd.
Publication Name: Nature
Subject: Zoology and wildlife conservation
ISSN: 0028-0836
Year: 2003
Methods, Origin, Astronomical research, Red shift, Redshift

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Rapid growth of black holes in massive star-forming galaxies

Article Abstract:

A report on the ultra-deep X-ray observations of distant star-forming galaxies that are bright at submillimetre wavelengths is presented. The findings show that the black holes in these galaxies are growing almost continuously throughout periods of intense star formation.

Author: Bauer, F.E., Ivison, R.J., Alexander, D.M., Smail, I., Chapman, S.C.; Blain, A.W.; Brandt, W.N.
Publisher: Macmillan Publishing Ltd.
Publication Name: Nature
Subject: Zoology and wildlife conservation
ISSN: 0028-0836
Year: 2005
Science & research, Research, Black holes (Astronomy), Star formation

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Subjects list: United States, Analysis, Galaxies
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