Not exact matches
Images of four
distant galaxies observed with the Arecibo radio telescope, which have been found to
host huge reservoirs of atomic hydrogen gas.
Distant blasts could also help pinpoint the locations of faint GRB
host galaxies that could be detected by space telescopes like the soon - to - be-refurbished Hubble Space Telescope or NASA's infrared James Webb Telescope, which is set to launch in 2013.
«We needed both the nearby Cepheid distances for
galaxies hosting Type Ia supernovae and the distances to the 300 more -
distant Type Ia supernovae to determine the Hubble constant,» Filippenko said.
These
distant quasars are thought to «turn on» when the
host galaxy's central black hole is «fueled» by material drawn in during an early stage of the
galaxy's development, before the
galaxy «settles down» to a more sedate life.