CRY BABY: Baby - PULSAR

Discovered the youngest known millisecond pulsars.

When a large star dies in a supernova explosion, and resets its outer shell, the remaining mass may not be enough to completely collapse to form black holes. However, formed no less interesting objects - neutron stars with a mass around the Sun but a diameter of some tens of kilometers. The density of neutron star matter is enormous, as well as its magnetic field, which rotates and generates periodic pulses of radio waves, optical, X-ray or gamma-ray. The narrow streams of light are so regular that they originally thought highly signals of extraterrestrial civilizations. Today, the nature of such objects, pulsars, causes no sensation is, however, puzzles, they are fraught with many. Observations of pulsars are conducted at different wavelengths, including gamma- rays, which operates the telescope orbiting Fermi, who began work in 2008. And found them to have more than one hundred. What is particularly impressive given the fact that before the Fermi scientists knew only seven gamma-ray pulsars. Some pulsars spin really fast, making up to 43 thousand. rpm, and emit pulses of radiation with frequency on the order of milliseconds. It is believed that millisecond pulsars are accelerated to a speed of binary star systems, pulling matter from a normal star - neighbor. There are also more exotic cases in which a neutron star companion is a planet - that it happens when we talked in the article ... Over time, the rotation slows down: it consumes the energy of the radiation, so that the age of millisecond pulsars is usually about 1 billion years. Notable exception was found recently by the same telescope Fermi - millisecond pulsar PSR J1823-3021A is only 25 million years old. It is located in the globular cluster NGC 6624, one of the more than 160- ty of such objects surrounding our galaxy. Age of the cluster is estimated at 10 billion years, it is in the 27 th. light-years from Earth in the direction of the constellation Sagittarius. Earlier signs of millisecond pulsars - ... However, these findings were associated with the work of dozens of pulsars, but the PSR J1823-3021A was visible even in solitude. Judging by the energy with which it emits, it is really young: researchers compare it with a loud screaming baby. It pulsates with a frequency of 183.8 times per second and performs, it is estimated that around 11 thousand. rpm. It is instructive that, despite its impressive sensitivity, Fermi is able to record even the light of the observed pulsars, not every sales. To analyze the collected data it took several years - and help the distributed computing project Einstein @ Home, where you are, incidentally, can take part themselves.