The VLA and other facilities will also prove crucial to further studies of the repeating Arecibo FRB as researchers seek to
detect more bursts and better understand the nature of the source.
Not exact matches
When the
bursts became stronger, we could see modulations in that signal much
more easily than before, and we could
detect pulsations in it too, says astrophysicist Chryssa Kouveliotou, a batse senior research scientist.
Astronomers have
detected one
more clue to the origins of gamma - ray
bursts, those highly energetic explosions that occur in distant galaxies.
«Fast radio
bursts»
detected here on Earth last only a thousandth of a second, but are the result of a faraway source briefly shining a billion or
more times brighter than our sun.
One of the rare and brief
bursts of cosmic radio waves that have puzzled astronomers since they were first
detected nearly 10 years ago has finally been tied to a source: an older dwarf galaxy
more than 3 billion light years from Earth.
This all - sky coverage lets Fermi
detect more gamma - ray
bursts, and over a broader energy range, than any other mission.
It's possible that all FRBs repeat but our telescopes simply aren't sensitive enough to
detect most of them, or there could be
more than one type of
burst.
The team thinks dispersion could be used to help compute cosmic distances with greater precision — if
more radio
bursts can be
detected and their cause can be isolated.
Seconds later, a satellite
detected a gamma - ray
burst, and
more than 70 observatories subsequently studied the aftermath in every wavelength.
Those would cluster near the centre of galaxies, making them
more likely to pass through the accretion discs of supermassive black holes there, causing the
bursts we
detect.
In the wee hours of the morning of 19 March, astronomers
detected from
more than halfway across the universe a
burst of gamma rays brighter than a hundred - billion suns — and aimed squarely at Earth.
But
more and
more FRBs kept showing up — 26 have been counted so far, including the Spitler
burst,
detected by the astronomer Laura Spitler in data from 2012 — and scientists had to agree they were real.
In a repeat press announcement with
more fanfare, two papers on the earliest
detected Gamma - Ray
Burst (GRB) thus far (on April 23, 2009, and designated GRB 090423) were published in Nature on October 29, 2009.
From the rest wavelength of the Lyman - alpha break (121.6 nm), the spectroscopic redshift of GRB 000131 was then determined to be 4.500 + / - 0.015, corresponding to a travel time of
more than 90 percent of the age of the Universe and making GRB 000131 the most ancient and remote gamma - ray
burst detected at the time — for which its age and distance could be calculated (Andersen et al, 2000).
It is natural to focus on an asset's fundamental value, but the real key for
detecting a bubble is speculation... Speculation tends to chase appreciating assets, and then speculation begets
more speculation, until finally, for some reason that will become obvious to all in hindsight, the «bubble»
bursts.