Mystic Sisterhood

Would you like to react to this message? Create an account in a few clicks or log in to continue.
Mystic Sisterhood

Psychic, Paranormal & Natural Science Forums



Next Chat Event

'Pulsar in a box' reveals surprising picture of a neutron star's surroundings 5nvklj





'Pulsar in a box' reveals surprising picture of a neutron star's surroundings 9tpt39

..


'Pulsar in a box' reveals surprising picture of a neutron star's surroundings

Dragon
Dragon
Senior Administrator
Senior Administrator

Posts : 7263
Points : 23845
Times User Thanked: : 902
Join date : 2018-01-18

'Pulsar in a box' reveals surprising picture of a neutron star's surroundings Empty 'Pulsar in a box' reveals surprising picture of a neutron star's surroundings

Post by Dragon Sun Oct 14, 2018 6:27 pm

An international team of scientists studying what amounts to a computer-simulated "pulsar in a box" are gaining a more detailed understanding of the complex, high-energy environment around spinning neutron stars, also called pulsars. The model traces the paths of charged particles in magnetic and electric fields near the neutron star, revealing behaviors that may help explain how pulsars emit gamma-ray and radio pulses with ultraprecise timing.

Continued...
Source


_________________
'Pulsar in a box' reveals surprising picture of a neutron star's surroundings 334pu7m
Dragon
Dragon
Senior Administrator
Senior Administrator

Posts : 7263
Points : 23845
Times User Thanked: : 902
Join date : 2018-01-18

'Pulsar in a box' reveals surprising picture of a neutron star's surroundings Empty Re: 'Pulsar in a box' reveals surprising picture of a neutron star's surroundings

Post by Dragon Sun Oct 14, 2018 6:29 pm

'Pulsar in a box' reveals surprising picture of a neutron star's surroundings Pulsarinabox
Credit: NASA

A pulsar is the crushed core of a massive star that ran out of fuel, collapsed under its own weight and exploded as a supernova.

Source / Image Courtesy


_________________
'Pulsar in a box' reveals surprising picture of a neutron star's surroundings 334pu7m
Dragon
Dragon
Senior Administrator
Senior Administrator

Posts : 7263
Points : 23845
Times User Thanked: : 902
Join date : 2018-01-18

'Pulsar in a box' reveals surprising picture of a neutron star's surroundings Empty Re: 'Pulsar in a box' reveals surprising picture of a neutron star's surroundings

Post by Dragon Sun Oct 14, 2018 6:31 pm



Chandra Telescope Views Particle Jet From Large Pulsar


_________________
'Pulsar in a box' reveals surprising picture of a neutron star's surroundings 334pu7m
Dragon
Dragon
Senior Administrator
Senior Administrator

Posts : 7263
Points : 23845
Times User Thanked: : 902
Join date : 2018-01-18

'Pulsar in a box' reveals surprising picture of a neutron star's surroundings Empty Re: 'Pulsar in a box' reveals surprising picture of a neutron star's surroundings

Post by Dragon Sun Oct 14, 2018 6:32 pm



The simulation shows that most of the electrons tend to race outward from the magnetic poles. Some medium-energy electrons scatter wildly, even heading back to the pulsar.

The positrons, on the other hand, mostly flow out at lower latitudes, forming a relatively thin structure called the current sheet. In fact, the highest-energy positrons here -- less than 0.1 percent of the total -- are capable of producing gamma rays similar to those detected by NASA's Fermi Gamma-ray Space Telescope, which has discovered 216 gamma-ray pulsars.


_________________
'Pulsar in a box' reveals surprising picture of a neutron star's surroundings 334pu7m
Dragon
Dragon
Senior Administrator
Senior Administrator

Posts : 7263
Points : 23845
Times User Thanked: : 902
Join date : 2018-01-18

'Pulsar in a box' reveals surprising picture of a neutron star's surroundings Empty Re: 'Pulsar in a box' reveals surprising picture of a neutron star's surroundings

Post by Dragon Sun Oct 14, 2018 6:34 pm



A neutron star comes from a large star that has run out of fuel, and exploded as a supernova. As gravity forces the star to collapse to the size of a small city, the star becomes so dense that a single teaspoon of the collapsed star would have as much mass as a mountain.

The star’s core, now a neutron star, can be rotating as fast as 10 times a second or more. Over time the rotation of the core can start speeding up by pulling matter from its surroundings, rotating over 700 times a second!

Some neutron stars, called radio pulsars, have strong magnetic fields and emit radio waves in predictable, reliable pulses. Other neutron stars have even stronger magnetic fields, displaying violent, high-energy outbursts of X-ray and gamma ray light.

These are called 'magnetars', and their magnetic fields are the strongest known in the universe, a trillion time stronger than that of our sun.


_________________
'Pulsar in a box' reveals surprising picture of a neutron star's surroundings 334pu7m

Sponsored content

'Pulsar in a box' reveals surprising picture of a neutron star's surroundings Empty Re: 'Pulsar in a box' reveals surprising picture of a neutron star's surroundings

Post by Sponsored content


    Current date/time is Thu Oct 21, 2021 6:37 pm