dark matter may interact with gaseous matter, and the hypothesis of dark matter helps scientists explain the "lost satellite galaxy" around Milky Way . Why is the theoretically expected satellite galaxy lacking around the Milky Way? A unique research method explains it. The results of observation and theoretical analysis show that the Milky Way is not an empty area around it. Through the application of computer simulation technology, scientists have developed computational models about how galaxies are formed. Compared with the actual observed data, more small galaxies are "hidden" around the Milky Way. Astronomers then raise the question of "where are the small galaxies gone". They may be lost in some places, and astronomers can only discover their traces through observation.
Scientists have predicted that more galaxies will appear around the Milky Way, and new research methods have raised questions about the currently widely recognized theory of cold dark matter. Cold dark matter is an invisible and extremely mysterious substance, and their mechanism of action needs to be explored by scientists. Cosmologists and particle physicists from the Institute of Phenomenology of Particle Physics at Durham University in the UK conducted a collaborative study with colleagues from France. They found potentially influential solutions. The corresponding research results were published in the journal "Monthly Newsletter" published by the Royal Astronomical Society of Britain . Duran University’s science team used the COSMA supercomputer, which is an integral part of the UK’s DIRAC supercomputer framework, and EU and the UK Science and Technology Facilities Commission provided financial support for the scientific project.
dark matter particles have a gravitational effect. They interact with particles such as photon and neutrino . Dark matter showed dispersion in the young age of the universe. Dark matter clusters or dark matter halos emerged in the early universe in a "group" manner. Dark matter captured gas matter between galaxies through gravitational action, and gas matter between galaxies is the source of material material for stars and galaxies. The decrease in gas matter is equivalent to the decline of material material forming galaxies. The expected number of satellite galaxies around the Milky Way is difficult to form.
The dispersion and dissolution of dark matter particles gathered around the Milky Way, which hinders the formation of more galaxies by capturing gas. The fact that the expected number of satellite galaxies is difficult to form around the Milky Way, and the lack of satellite galaxies is indeed found around the Milky Way, is now reasonably explained. The paper's lead author Celine Boone of the Institute of Phenomenology of Particle Physics at Durham University explained that scientists do not know the intensity of interaction between dark matter particles and ordinary matter particles, and the scientific team used computer simulation methods to find the correspondence between the two.
The scientific team debugged the dispersed dark matter particles at the appropriate level, thus changing the number of small galaxies formed and the physical mechanism of dark matter action. The key issue is to find the quantitative comparison relationship between dark matter and other ordinary matter particles. From the microscopic scale of particle physics, the scientific team measured the impact of galaxies rotating around the Milky Way, and the measurement results provide a valuable scientific case. No more galaxies formed around the Milky Way. There are several versions of the current theory, and there is a theoretical version of the explanation, where the reason is understood as thermodynamic action, and the heat generated by the first generation of stars dissolves the gaseous matter needed for the star to form.
Durham University's scientific team gave a version of the theoretical explanation. Through alternative theory and technical tests, they quantitatively analyzed the interactions of cold dark matter and other matters. The role of dark matter is difficult to ignore, and dark matter particles make up most of the matter in the universe. The computational model regulates the relationship between the two matters in the universe, predicts and verifies the number of small galaxies around the Milky Way. There are few observations and many theoretical predictions.The computer simulated more effects of cold dark matter and increased the intensity of interaction between cold dark matter and other matter. Compared with previous theoretical predictions, the number of small galaxies rotating around the Milky Way has dropped significantly, and the time and space around the Milky Way are empty and silent.
(Compiled: 2014-9-10)
