Using a 2.2 - meter telescope at the European Southern Observatory in La Silla, Chile, a group led by Jochen Greiner at the Max Planck Institute for Extraterrestrial Physics in Garching, Germany, captured the bursts
fading afterglow.
Subsequent interactions between the jets and the surrounding interstellar gas create a slowly
fading afterglow, lasting for days, weeks, or even months.
But astronomers may have pulled off an equally challenging feat: detecting the glimmer of a supernova explosion in
the fading afterglow of a titanic gamma ray burst (GRB)-- one of the biggest type of explosions in all the cosmos.
The observations revealed
the fading afterglow of a kilonova explosion, providing the «smoking gun» evidence for the merger hypothesis.
Using radio telescopes in Australia and optical telescopes in Hawaii, Keane and his colleagues detected an FRB and linked
its fading afterglow to a host galaxy some six billion light - years from Earth.
If astronomers act quickly, they can turn other instruments toward the point of origin and record a rapidly
fading afterglow of x-rays, visible light and radio waves.
Not exact matches
The
afterglow of the U.S. president's trip to China
faded fast.
Once the
afterglow of having raised so much money
fades, teams are left with a daunting task: to turn the fantasies outlined in their whitepaper into a tangible, working product.
But the key to studying them is locating them quickly enough to point other instruments at their sources before the
afterglow fades.
As the wave expands and the fire
fades, the
afterglow changes «color» from x-ray to optical light to radio waves.
If the initial observations had been an
afterglow, it should have completely
faded away.
Telescopes on Earth spotted the event's
afterglow, which
faded over several days from bright blue to dimmer red.
Rather than
fade out over time, the
afterglow has continued to brighten over the past few months, leaving scientists stumped.
Rather than
fade over time, the
afterglow has continued to brighten.
Quick follow - up observations undertaken with the 8.2 - m Antu instrument at European Southern Observatory's Very Large Telescope in the Paranal and the 1.5 - meter Danish telescope at La Silla identified a faint, point - like object in visible light that was
fading rapidly, the optical counterpart of the gamma - ray burst called the «
afterglow» (Pedersen et al, 2000).
Although GRB 000131, like other gamma - ray bursts, appears to have taken place in a remote «early galaxy» (or «sub-galactic clumps» of stars) that is smaller than today's luminous galaxies, astronomers found it difficult to detect that extremely dim, sub-galactic clump of stars even with the Hubble Space Telescope, as the observed
fading of the
afterglow indicated that the maximum brightness of the gamma - ray emission was explosion was at least 10,000 times brighter than its host galaxy.
That's because unlike Akebono, the
Afterglow's blossoms are a darker pink that doesn't
fade.
And with the
afterglow of that billion - buck figure starting to
fade like the taillights of a truck hauling off WB's money - printing press, it is time to take action.