Sentences with phrase «pulsar radio emission»

At higher frequencies, the intrinsic strength of the pulsar signals largely decreases as pulsar radio emission usually has a steep spectrum.

Not exact matches

Discovered initially by lighthouse - like beams of radio emission, more recent research has found that energetic pulsars also produce beams of high energy gamma rays.

«We think it's quite possible that the radio beam is narrower than the gamma - ray emission, but we don't yet know how gamma rays are produced in the pulsar,» says Fermi project scientist Steve Ritz of NASA's Goddard Space Flight Center in Greenbelt, Maryland.

The top candidates, the astronomers suggested, are a neutron star, possibly a highly - magnetic magnetar, surrounded by either material ejected by a supernova explosion or material ejected by a resulting pulsar, or an active nucleus in the galaxy, with radio emission coming from jets of material emitted from the region surrounding a supermassive black hole.

For comparison, this pulsar's radio emission is some 250 times weaker than that from the famous pulsar in the Crab Nebula (the remnant of an explosion in the year 1054 recorded by Chinese astronomers and possibly also by Native Americans of the Anasazi tribe in modern - day Arizona and New Mexico).

By detecting this pulsar in the radio spectrum, astronomers may now follow its evolution with greater ease and flexibility than with X-ray telescopes on satellites, study the pulsar emission mechanisms, and also characterize the dynamic interstellar medium between the Earth and the pulsar.

We observe pulsed radio emission, like pulsars, but not for every rotation of the star.