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Curvature of space-time to make the invisible neutron star J1906 - VIDEO PDF Print E-mail
Monday, 06 July 2015 15:00

An international team of astrophysicists said about the impossibility of monitoring the pulsar (old neutron star) J1906 in a binary system. The object, which has previously been seen as scientists assume, dropped out of sight as a result of the curvature of space-time. The results of their research scientists published in The Astrophysical Journal, and brief them can be found at the Netherlands Institute for Radio Astronomy.

It is believed that this was due to the strong gravitational fields in the observed binary system, so that the geometry of space-time near the pulsar was arranged in such a way that it has become invisible to the observer on earth. Calculations made by scientists, suggests that on Earth a pulsar can be seen around 2170.

Pulsar is a superdense neutron star, which was formed after the supernova explosion. The object rotates fast enough and produces a radiation direction is tilted at an angle to the axis of rotation of the pulsar. It is this radiation and allows us to observe a pulsar.

In 2004, scientists reported the discovery at a distance of 7670 parsecs from the Sun in the constellation Aquila pulsar. Then it became known that he is double and consists of a radio pulsar J1906 and a neutron star (a white dwarf, or for any other hypothesis). Observations made by astrophysicists during the last five years, have allowed to define the parameters of these objects.

So, their mass slightly greater than solar, and the distance between them is very small and comparable to the diameter of our Sun. The diameter of the pulsar does not exceed a few dozen kilometers.

Objects revolves around each other for a period of about four hours. J1906 rotates around its axis at a frequency of seven cycles per second. The axis of rotation of the object itself is rejected by about two degrees per year - that is what allowed us to estimate the time when the pulsar can be seen on earth again.

 


НАЖМИТЕ ЗДЕСЬ ДЛЯ ПРОСМОТРА ВСЕГО СПИСКА НОВОСТЕЙ О НЕОБЫЧНЫХ ЯВЛЕНИЯХ>>>

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