The discovery of a galaxy-wide superwind from a young massive galaxy at redshift z approximately equal to 3
Article Abstract:
Two dimensional spectroscopy of a star-forming galaxy at redshift z = 3.09 is presented and its spatially extended Lyalpha line emission appears to be absorbed by H1 in a foreground screen covering the entire galaxy, with a lateral extent of at least 100 kpc and remarkable velocity coherence. This screen was ejected from the galaxy during a starburst several 10(super 8) years earlier and has subsequently swept up gas from the surrounding intergalactic medium and cooled.
Publication Name: Nature
Subject: Zoology and wildlife conservation
ISSN: 0028-0836
Year: 2005
User Contributions:
Comment about this article or add new information about this topic:
The inevitable youthfulness of known high-redshift radio galaxies
Article Abstract:
Radio galaxies have extensive lobes of emission driven by plasma jets, and some can be observed at very high redshifts. It is shown that for any model of radio-galaxy evolution where luminosity falls with time, following an initial rapid rise, each observable high-redshift radio galaxy must be seen when the lobes are less than 10(super7) years old. High-redshift radio galaxies can thus act as high-time-resolution probes of evolution in the early Universe.
Publication Name: Nature
Subject: Zoology and wildlife conservation
ISSN: 0028-0836
Year: 1999
User Contributions:
Comment about this article or add new information about this topic:
Journey to the birth of the universe
Article Abstract:
Astronomers in September 2006 have announced the discovery of the most distant galaxy yet seen from Earth, which provides fresh clues about the early history of the Universe, and seize a many contested record. The new galaxy, dubbed IOK-1, is so far away that the light by which it was detected was emitted only 750 million years after the Universe was born.
Publication Name: Nature
Subject: Zoology and wildlife conservation
ISSN: 0028-0836
Year: 2006
User Contributions:
Comment about this article or add new information about this topic:
- Abstracts: The rapid formation of a large rotating disk galaxy three billion years after the Big Bang. Rapid X-ray flaring from the supermassive black hole at the Galactic Centre
- Abstracts: Time and size of a giant earthquake in Cascadia inferred from Japanese tsunami records of January 1700. A wide depth distribution of seismic tremors along the northern Cascadia margin
- Abstracts: The importance of local familiarity and search for age- and sex-biased philopatry in the collared flycatcher. When to use public information for breeding habitat selection? The role of environmental predictability and density dependence
- Abstracts: A nesting dinosaur. A basal tyrannosauroid dinosaur from the Late Jurassic of China. A primitive therizinosauroid dinosaur from the Early Cretaceous of Utah
- Abstracts: A giant periodic flare from the soft gamma-ray repeater SGR1900+14. A new gamma-ray burst classification scheme from GRB 060614