Sentences with phrase «long bursts of gamma rays»
The Compton Gamma Ray Observatory (CGRO), designed to detect gamma rays from distant astrophysical objects such as neutron stars and supernova remnants, had also begun recording bright, millisecond - long bursts of gamma rays coming not from outer space but from Earth below.
https://www.scientificamerican.com/ Not exact matches
Astronomers spy one of the brightest and longest gamma - ray bursts ever seen, caused by a black hole swallowing a star.
«Many astronomers, including our group, have already provided a great deal of evidence that long - duration gamma - ray bursts (those lasting more than two seconds) are produced by the collapse of extremely massive stars.
FRBs are probably not directly related to long gamma ray bursts (another type of explosive event that preferentially occurs in dwarf galaxies), because there are just too few gamma ray bursts and too many FRBs.
Extremely bright exploding stars, called superluminous supernovae, and long gamma ray bursts also occur in this type of galaxy, he noted, and both are hypothesized to be associated with massive, highly magnetic and rapidly rotating neutron stars called magnetars.
The bursts that appeared to be the most powerful churned out most of their energy in intense, short - wavelength gamma rays, while the weakest ones had peak energies at longer wavelength x-rays.
Scientists spotted a phenomenon called a short gamma - ray burst, a brief spurt of high - energy light, less than two seconds long.
Type Ic supernovae, the explosions after the core collapse of massive stars that have previously lost their hydrogen and helium envelopes, are particularly interesting because of their link with long - duration gamma ray bursts.
«Now we have firm evidence for the origins of both short and long gamma - ray bursts.
It sent a flood of high - energy radiation towards Earth that lasted much longer than is typical for a gamma - ray burst (GRB).
Short gamma - ray bursts are cousin to long gamma - ray bursts, which are displays of enormous amounts of energy that last for more than two seconds and briefly outshine other energy sources before fading.
«Gamma - ray bursts are uniquely powerful and probably the only way for a very long time to observe the moment of first light — that redshift when the very first stars formed,» Lamb remarks.
Astrophysicists have typically focused on long gamma ray bursts, she adds, calling the short variety «kind of like the hipster class of gamma ray bursts.»
Frail and Dr. Greg Taylor, also of NRAO, used the National Science Foundation's Very Large Array (VLA) and Very Long Baseline Array (VLBA) radio telescopes to study the gamma ray burst which exploded on May 8.
On April 23, 2009, NASA's Swift satellite detected a 10 - second - long burst of gamma - rays from GRB 090423 in the western part (9:55:35 +18:9:37, J2000) of Constellation Leo — northwest of Eta and Alpha Leonis (Regulus), southwest of Gamma (Algieba) and Zeta (Adhafera) Leonis, south of Rasalas (Mu Leonis), and southeast of Algenubi (Epsilon Leonis), and northeast of Subra (Omicron Leogamma - rays from GRB 090423 in the western part (9:55:35 +18:9:37, J2000) of Constellation Leo — northwest of Eta and Alpha Leonis (Regulus), southwest of Gamma (Algieba) and Zeta (Adhafera) Leonis, south of Rasalas (Mu Leonis), and southeast of Algenubi (Epsilon Leonis), and northeast of Subra (Omicron LeoGamma (Algieba) and Zeta (Adhafera) Leonis, south of Rasalas (Mu Leonis), and southeast of Algenubi (Epsilon Leonis), and northeast of Subra (Omicron Leonis).
«There are also two other classes of extreme events — long duration gamma - ray bursts and superluminous supernovae — that frequently occur in dwarf galaxies, as well.
Gamma - ray bursts come in two varieties — long and short — depending on how long the flash of gamma rays lGamma - ray bursts come in two varieties — long and short — depending on how long the flash of gamma rays lgamma rays lasts.
Seven years is a hugely long time period and this gamma - ray burst you're talking about might be the final proof of the influence of ancient aliens on the psyche of medieval man!