Sentences with phrase «radio pulses»

So it is easy to imagine that the first message from aliens may consist of radio pulses that follow a mathematical pattern.

Fast radio bursts appear as single, bright, very short radio pulses that have never been seen to repeat.

Some of the newly formed ones have been detected because their rapid rotation sends radio pulses our way multiple times per second.

Pulsar timing arrays (PTAs) monitor the arrival times of radio pulses from numerous pulsars to search for shifts caused by passing long - wavelength gravitational waves.

Then he realized that if he transmitted radio pulses as well as listened to them, he could bounce a signal off a target — an approaching aircraft, for example.

Some neutron stars, like the one in the Crab Nebula supernova remnant, are called pulsars because astronomers detect regular radio pulses coming from them.

Neutron stars are dense, compact objects created in supernova explosions, seen mostly as pulsars, because they emit periodic radio pulses as they spin.

But the antenna's detection of the first FRB — and the subsequent confirmed discovery of nearly two dozen more powerful radio pulses across the sky by Parkes and other radio telsescopes — has sent astrophysicists scurrying to find more of the objects and to explain them.

«For B0355 +54, a jet points nearly at us so we detect the bright radio pulses while most of the gamma - ray emission is directed in the plane of the sky and misses the Earth,» said Kargaltsev.

Such tags, costing just a few cents, carry a small, non-powered chip that, when hit by radio waves from a nearby «reader,» converts some of the radio energy into its own radio pulse in return.

True, astronomers still don't know the origins of these extragalactic milliseconds - long radio pulses, and until this year fewer than 20 had ever been detected.

If orientated properly, a hot spot above the magnetic pole of the neutron star may whirl in and out of view for observers on Earth, producing a regular train of radio pulses separated by anything from a few milliseconds to a few seconds.

Paul Marks reports on the European SAVELEC consortium's system to disable the cars of uncooperative drivers by firing radio pulses...

When those relativistic electrons collided with air molecules, they generated gamma rays and lower energy electrons that were the main electric current carrier that produced the strong radio pulse before the visible lightning.

«This was particularly intriguing because radio pulses don't come from an X-ray binary and the X-ray source has to be long gone before radio signals can emerge.»

The more waves we grab, the easier it is to catch all of the superfast on and off radio pulses of a pulsar.

Pulsars are compact, rotating neutron stars that act like cosmic lighthouses and emit regular radio pulses whose periods can be measured very precisely.

An initial RRAT detection may be nothing more than a single radio pulse.

Natalia's research is focused on the study of giant radio pulses.

An offline analysis then reveals that indeed, the combination of real - time airplane position and received airplane radio pulses can be used to validate the «beacon method».

A radar antenna sends out a short radio pulse and then waits for it to echo off an airplane or other target.

But he was not feeling so affectionate back then as he attempted to explain the peculiarly irregular timing of radio pulses from this city - size star: «It was really a lot of pain because the pulsar didn't want to fit any standard models.

These rapidly spinning neutron stars flash regular radio pulses, and in an upcoming issue of The Astrophysical Journal astronomers say that the timing of such pulses could provide a new understanding of the 4 million solar mass black hole at the center of the Milky Way.

It all begins in 1957 when the Soviet Union launches Sputnik, a 58.5 - centimeter - wide ball emitting radio pulses.

These after - death planets can be detected because their gravitational pull alters the times of arrival of radio pulses from the neutron star, or «pulsar», that otherwise pass us by extremely regularly.

The tag transmits a radio pulse that can be picked up at least 20 kilometres away — much further than existing tags can signal — and crucially, it needs no batteries to work.

It converts the slightest movement between the two into electrical energy and uses this to transmit a radio pulse.

But the transmitter pinged an hourly signal to an Inmarsat satellite and those radio pulses were used to work out a rough flight path for the missing plane.

Astrophysicists Aleksander Wolszczan and Dale Frail found a sign of the planets, first detected with the Arecibo radio telescope, in irregularities in the radio pulses from the millisecond pulsar PSR1257 +12.

To add one plus one, the physicists used two of the carbon atoms and zapped them with a series of radio pulses.

Understanding the two phenomena, which are both produced by interactions between charged particles and the planet's magnetic field, may help to explain the variations in the timing of the radio pulses and to shed light on Saturn's geomagnetic workings.

Neutron star and its companion shown when the accretion has stopped and the neutron star is emitting radio pulses.

Within a few days, the radio pulses once again emerged.

She and her colleagues identified the pulsar by the radio pulses it emitted every 39 milliseconds.

These materials are transparent to radio waves, so the radio pulses should be detectable.

A common idea is to use «clocks» with known rates (such as pulsars, rotating neutron stars which periodically emit radio pulses), look what a changing speed of light predicts for observations of these rates, and compare these predictions with the real data.

Radio pulses from space have stumped scientists for years.

That means if an FRB is detected by any of the world's radio telescopes, Vandenbroucke and his team can analyze IceCube data for that region of the sky at the time the radio pulse was detected.

The radio pulses followed a numerical pattern, encoding a sort of «introduction to Earthlings» for aliens.

(A pulsar is a rotating neutron star that shines a beam of radio waves like a cosmic lighthouse; these radio pulses sweep across the Earth at regular intervals.)

The radio pulse FRB 150807 The colour shows the frequency of the waves, which is like the colour of light.

The telescope then locked onto a pulsar called PSR B1133 +16 and a chart recorder scratched out the regular pattern of its radio pulses, which reach Earth every 1 2 seconds.

Fast radio bursts are high - energy astrophysical phenomena that manifest themselves as a short - lived (usually only a few millisecond long) radio pulse.

To lock / unlock an Audi vehicle with the Advanced Key, the key is identified via proximity sensors in each car door and trunk lid which are matched to a radio pulse generator in the key housing as soon as you are within approximately 5 feet of the vehicle.

The key is identified via one of several antennas in the car's bodywork and a radio pulse generator in the key housing.