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When the core of a massive star is compressed during a supernova explosion, then collapses into a neutron star, it retains most of its angular momentum.
Since it has only a tiny fraction of its original radius, a neutron star is formed with a very high rotational speed.
A pulsar is a highly magnetised, dense neutron star emitting a beam of electromagnetic radiation.
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How do you use pulsate in a sentence?
The astronomer's observations proved that cephid variable stars would pulsate in a regular cycle
Pulsating variable stars are A-Binary stars B-Pulsars C-Novas D-Cephied Variables?
Cepheid Variables.
Are RR Lyrae stars and RR Lyrae variables different?
RR Lyrae variables are variable stars often used as standard candles. RR Lyrae are pulsating horizontal branch stars.
Why did astronomers conclude that pulsars could not be pulsating stars?
Pulsars have extremely short periods; in some cases seconds, in some cases just a few milliseconds. There is no way a typical star, with its great size (for example, a diameter of 1.4 million kilometers in the case of our Sun) can pulsate that quickly.
What does Cepheid mean?
A Cepheid is a member of a class of pulsating variable stars. The relationship between a Cepheid variable's luminosity and pulsation period is quite precise, securing Cepheids as viable standard candles and the foundation of the Extragalactic Distance Scale.
What are one group of pulsating stars are called?
mooohiytsert
What is the lighthouse of space?
The pulsar might be considered the lighthouse of space. It "flashes" or "blinks" at different rates depending on its speed of rotation. Pulsars (pulsating stars) are spinning neutron stars that are highly magnetized. Their spin, coupled with their emission of higly direction oriented "beams" of radiation, makes them appear to pulsate in a lighthouse effect. And that's how they got their nickname. A link is provided to the Wikipedia article on the pulsar.
Can pulsars be considered pulsating stars?
No, they are completely different. See related questions
Heavenly body with periodically changing luminosity?
Variable stars are those that have changing luminosities. There are two kinds of variable stars: intrinsic (where the variation is due to physical changes in the star), and extrinsic (where the variation is due to the eclipse of one star by another, or due to the effect of stellar rotation). They can be further divided into five different classes: the intrinsic pulsating, cataclysmic, eruptive variables, extrinsic eclipsing binary, and rotating stars.
What has the author Leon Campbell written?
Leon Campbell has written: 'The story of variable stars' -- subject(s): Stars, Variable, Variable stars
What are pulsating stars?
That refers to star that change their size, and therefore their brightness, in a repetitive pattern.
How do stars use frequencies?
The electromagnetic radiation (including light) have frequencies. Stars may also pulsate (get larger and smaller, and thus brighter and less bright) at a certain frequency.
