The Large Sky-Area Multi-Object Fiber Spectroscopic Telescope （LAMOST） Data Release 3 provided 341 691 K giant stars with stellar parameters. Based on the models of Law ＆ Majewski, we identified 252 K giant stars i...The Large Sky-Area Multi-Object Fiber Spectroscopic Telescope （LAMOST） Data Release 3 provided 341 691 K giant stars with stellar parameters. Based on the models of Law ＆ Majewski, we identified 252 K giant stars in the leading stream associated with the Sagittarius （Sgr） dwarf galaxy. We obtained 132 K giant stars belonging to the trailing arm of Sgr using the model of Belokurov et al. We studied the metallicity distribution of member stars along the streams and found a fiat gradient in the first wrap of the leading stream, -（0.88±0.3） × 10^-3 dex/（°） in the second wrap of the leading stream and -（1.2±0.3） × 10^-3 dex/（°） in the first wrap of the trailing stream. Moreover, we obtained a combined metallicity gradient with our sample and data from the literature. We also analyzed the properties of an overdensity, which is located in the leading stream of the Sgr.展开更多
In 2013, World-Universe Model (WUM) made one of the most important predictions: “Macroobjects of the World have cores made up of the discussed DM (Dark Matter) particles. Other particles, including DM and baryonic ma...In 2013, World-Universe Model (WUM) made one of the most important predictions: “Macroobjects of the World have cores made up of the discussed DM (Dark Matter) particles. Other particles, including DM and baryonic matter, form shells surrounding the cores” [1]. Prof. R. Genzel and A. Ghez confirmed this prediction: “The Discovery of a Supermassive Compact Object at the Centre of Our Galaxy” (Nobel Prize in Physics 2020). On May 12, 2022, astronomers, using the Event Horizon Telescope, released the first image of the accretion disk around the Sagittarius A* (Sgr A*) produced using a worldwide network of radio observatories made in April 2017. These observations were obtained by a global array of millimeter wavelength telescopes and analyzed by an international research team that now numbers over 300 people, which claimed that Sgr A* is a Supermassive Black Hole (SBH). In the present paper, we analyze these results in frames of WUM. Based on the totality of all accumulated experimental results for the Center of the Milky Way Galaxy we conclude that Sgr A* is the DM Core of our Galaxy.展开更多
There are parallels between the time distortion equations of General and Special Relativity. The time distortion in Special Relativity limits the “Real” velocity of a particle to the speed of light |c| by slowing th...There are parallels between the time distortion equations of General and Special Relativity. The time distortion in Special Relativity limits the “Real” velocity of a particle to the speed of light |c| by slowing the velocity of bosons/energy and increasing the mass of fermion||lepton (or matter) particles. In General Relativity, the gravitational slowdown of bosons/gravitons limits the escape velocity |v <sub>Esc</sub>| to light speed. |v Esc = (2GM/r)<sup>0.5</sup></sub>| can also be written as |v <sub>Esc</sub>2 </sup>= 2GM/r|. So an alternate grammar for the equation could be The above contests currently held properties of Schwarzschild Objects. Relativistic theory predicts the slowdown of gravitons/bosons, while their velocity only approaches zero. The different mathe-matical logic of Gravitational Force ||GF|</sub>| GF = GMm/r<sup>2 </sup>would mean no limit on the force. Matter formed through compression of bosons can escape after formation by absorbing kinetic energy from the slowing photons/bosons in its surroundings. So matter formation can occur via a steady-state mechanism. The limit on v Esc</sub> allows matter to escape in events that parallel both the Big Bang and Cyclic cosmology. Additional arguments are made as to the validity of relativity.展开更多
基金supported by National Natural Science Foundation of China (Grant Nos. U1631105, 11390371, 11573035, 11233004, 11625313, 11373026, 11303003 and 11673005)the 973 program (No. 2014CB845700)the Strategic Priority Research Program of the Chinese Academy of Sciences (Grant No. XDB01020300)
文摘The Large Sky-Area Multi-Object Fiber Spectroscopic Telescope （LAMOST） Data Release 3 provided 341 691 K giant stars with stellar parameters. Based on the models of Law ＆ Majewski, we identified 252 K giant stars in the leading stream associated with the Sagittarius （Sgr） dwarf galaxy. We obtained 132 K giant stars belonging to the trailing arm of Sgr using the model of Belokurov et al. We studied the metallicity distribution of member stars along the streams and found a fiat gradient in the first wrap of the leading stream, -（0.88±0.3） × 10^-3 dex/（°） in the second wrap of the leading stream and -（1.2±0.3） × 10^-3 dex/（°） in the first wrap of the trailing stream. Moreover, we obtained a combined metallicity gradient with our sample and data from the literature. We also analyzed the properties of an overdensity, which is located in the leading stream of the Sgr.
文摘In 2013, World-Universe Model (WUM) made one of the most important predictions: “Macroobjects of the World have cores made up of the discussed DM (Dark Matter) particles. Other particles, including DM and baryonic matter, form shells surrounding the cores” [1]. Prof. R. Genzel and A. Ghez confirmed this prediction: “The Discovery of a Supermassive Compact Object at the Centre of Our Galaxy” (Nobel Prize in Physics 2020). On May 12, 2022, astronomers, using the Event Horizon Telescope, released the first image of the accretion disk around the Sagittarius A* (Sgr A*) produced using a worldwide network of radio observatories made in April 2017. These observations were obtained by a global array of millimeter wavelength telescopes and analyzed by an international research team that now numbers over 300 people, which claimed that Sgr A* is a Supermassive Black Hole (SBH). In the present paper, we analyze these results in frames of WUM. Based on the totality of all accumulated experimental results for the Center of the Milky Way Galaxy we conclude that Sgr A* is the DM Core of our Galaxy.
文摘There are parallels between the time distortion equations of General and Special Relativity. The time distortion in Special Relativity limits the “Real” velocity of a particle to the speed of light |c| by slowing the velocity of bosons/energy and increasing the mass of fermion||lepton (or matter) particles. In General Relativity, the gravitational slowdown of bosons/gravitons limits the escape velocity |v <sub>Esc</sub>| to light speed. |v Esc = (2GM/r)<sup>0.5</sup></sub>| can also be written as |v <sub>Esc</sub>2 </sup>= 2GM/r|. So an alternate grammar for the equation could be The above contests currently held properties of Schwarzschild Objects. Relativistic theory predicts the slowdown of gravitons/bosons, while their velocity only approaches zero. The different mathe-matical logic of Gravitational Force ||GF|</sub>| GF = GMm/r<sup>2 </sup>would mean no limit on the force. Matter formed through compression of bosons can escape after formation by absorbing kinetic energy from the slowing photons/bosons in its surroundings. So matter formation can occur via a steady-state mechanism. The limit on v Esc</sub> allows matter to escape in events that parallel both the Big Bang and Cyclic cosmology. Additional arguments are made as to the validity of relativity.
