Iron also emits X rays at the slightly lower energy of 6,400 electron-volts
The detection of a cosmic ray with an energy of 3 x 102o electron-volts
- the highest energy ever recorded for a cosmic ray - also suggests that these rays can't be relics from the early universe.
Generated by data from the Compton Gamma Ray Observatory's (GRO) EGRET telescope, the map depicts emissions with an energy greater than 100 million electron-volts
Analyzing accumulated data from billions of collisions that produced no top quark, physicists using the CDF detector now report 108 billion electron-volts
(108 GeV) as the new lower limit on the top quark's mass.
satellite will image medium-energy X-ray emissions from 300 to 12,000 electron-volts
Such minute changes in path alter the beam energy by as much as 10 million electron-volts
- enough to make the moon's gravitational effect the cause of the dominant error in determinations of the [Z.
NASA's Compton Gamma Ray Observatory (GRO) found that the puzzling source had become the most powerful radiator detected at the X-ray energy of 100,000 electron-volts
The ejected electrons gather into compact bunches and reach an energy of 46 billion electron-volts
as they race down the SLC's 2-mile track to crash head-on into high-energy, unpolarized positrons traveling at the same speed.
Electrons accelerated to several million electron-volts
of energy emit these radio waves in the corona as they spiral around strong magnetic fields.
But such gamma rays - with energies of about 1 trillion electron-volts
- turned up only in the Milky Way, most notably in the Crab nebula (SN: 4/28/90, p.
Designed to produce an intense beam of electrons with an energy of at least 4 billion electron-volts
, this accelerator will allow nuclear and particle physicists to use electrons as sensitive probes for elucidating the complex structure of protons, neutrons and nuclei (SN: 8/9/86, p.