He dropped all his other investigations and for two days solely observed this persnickety pulsar. |
|
A pulsar, of course, beeps with a regular beat, but it also has a sort of echo. |
|
Most millisecond pulsars hover around the 300 revolutions per second mark, and the fastest spinning pulsar ever detected clocked in at 641 rps. |
|
The tick of this pulsar clock is very regular, a sharp pulse every 0.059 second. |
|
Sifting through these observations, they were able to detect the white dwarf orbiting the pulsar and measure its color and temperature. |
|
The planet, more than twice the size of Jupiter, orbits two stars, a pulsar and a white dwarf that linked together about a billion years ago. |
|
The object is being stimulated by jets from a rapidly spinning neutron star called a pulsar. |
|
Some of the first pulsar planet discoveries were later retracted by their discoverers. |
|
Yet if the dense pulsar, with its strong gravitational potential, is in a binary system, it can pull in material from its companion star. |
|
A pulsar is a rotating neutron star, a remnant of the explosive death throes of a star at least eight times as massive as our own sun. |
|
If the pulsar were indeed a binary, its frequency should at some point start to increase. |
|
The hunt for an X-ray millisecond pulsar has proved puzzlingly slow and drawn-out. |
|
Spotting such radio pulses would be more evidence that this specimen is destined to become a millisecond pulsar. Yet this is all mop-up work. |
|
This is also an argument for using higher frequencies in pulsar timing, when possible. |
|
However, on cosmic scales this pulsar is very much in our neighbourhood. |
|
Collaboration is maintained with a number of radio-astronomy groups observing pulsars and analysing pulsar data. |
|
Jodrell Bank, the radio astronomy observatory in the UK, uses a BBC micro from the early 1980s to steer one of their smaller dishes which tracks a pulsar in the Crab nebula. |
|
The wavelengths of the radio waves emitted by the pulsar are lengthened as a result of the effects of the gravitational field of the companion star. |
|
Surrounding the pulsar is a bright doughnut-shaped, or toroidal, structure, with jet-like features extending in a perpendicular direction away from the torus. |
|
High-precision pulsar timekeeping observations therefore need to be protected from harmful interference. |
|
|
The basic pulsar model involves a magnetic dipole field tilted with respect to the rotation axis, beaming radio waves along the dipole axis as the star spins. |
|
The decametric radiotelescope is dedicated to the study of comets, physics of galaxies, great structures of the Universe, pulsar chronometry. |
|
Other radio telescopes also have millisecond pulsar observation programmes, but with lower sensitivities than the above observatories. |
|
In the visible light, the pulsar is of 16th apparent magnitude. |
|
In addition to pulsar observing, COBRA will be used for other online observations, for example methanol emission lines from astronomical objects. |
|
The first pulsar readings proved the efficiency of HESS for inter-stellar observations from terrestrial telescopes. |
|
Eventually, even this zombie of a star rests in peace. At least, this is what happens to a pulsar that is the remains of a lonely, companionless star such as the sun. |
|
The X-ray images of the pulsar and the supernova remnant were made last year by the Chandra spacecraft, sent up by the National Aeronautics and Space Administration. |
|
Minds may now boggle a little less: the whip for this heavenly spinning top has been found. A millisecond pulsar is the most extreme type of pulsar, itself an extreme example of a neutron star. |
|
They propose that when the transfer is complete and the star has revved up to its maximum spin, the system will switch on as a millisecond radio pulsar. |
|
The Oral-B Pulsar is the latest entry in the hot battery-operated oral care category, which is receiving much attention lately. |
|
Without the raised suspension and rugged looks of its popular stablemates, the Pulsar possesses clean and relatively unfussy lines not always associated with Japanese brands. |
|
She was wearing a gold ring with black and white stones, a silver ring with a white stone, a silver thumb ring with an unusual dinosaur design and a silver Pulsar watch. |
|