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Why the Central Monster in M87 Should Be a Massive DEO Rather than a SMBH?: 《Journal of Modern Physics》2024年第5期537-549,共13页Ahmad A. Hujeirat Mauritz Wicker; In this paper, we show that massive envelopes made of highly compressed normal matter surrounding dark objects (DEOs) can curve the surrounding spacetime and make the systems observationally indistinguishable from the...; 关键词：General Relativity Big Bang Black Holes QSOS Neutron Stars QCD Condensed Matter INCOMPRESSIBILITY SUPERFLUIDITY Super-Conductivity

Why the Energy Density of the Universe Is Lower and Upper-Bounded? Relaxing the Need for the Cosmological Constant: 《Journal of Modern Physics》2023年第6期790-801,共12页Ahmad A. Hujeirat; Recently, it was argued that the energy density of the supranuclear dense matter inside the cores of massive neutron stars must have reached the , beyond which supranuclear dense matter becomes incompressible entropy-...; 关键词：General Relativity Big Bang Black Holes QSOS Neutron Stars QCD Condensed Matter INCOMPRESSIBILITY SUPERFLUIDITY Super-Conductivity

Foundation of the Unicentric Model of the Observable Universe—UNIMOUN: 《Journal of Modern Physics》2023年第4期415-431,共17页Ahmad A. Hujeirat; In view of the growing difficulties of ΛCDM-cosmologies to compete with recent highly accurate cosmological observations, I propose the alternative model: the Unicentric Model of the Observable UNiverse (UNIMOUN). Th...; 关键词：General Relativity: Big Bang Black Holes QSOS Neutron Stars QCD Condensed Matter INCOMPRESSIBILITY SUPERFLUIDITY Super-Conductivity

The Progenitor of the Big Bang and Its Connection to the Flatness and Acceleration of the Universe被引量：1: 《Journal of Modern Physics》2022年第11期1474-1498,共25页Ahmad A. Hujeirat; It was argued that old and massive neutron stars end up as black objects that are made of purely incompressible superconducting gluon-quark superfluid matter (henceforth SuSu-objects). Based on theoretical investigati...; 关键词：General Relativity: Big Bang Black Holes QSOS Neutron Stars QCD Condensed Matter SUPERFLUIDITY

The Origin of Power and Acceleration of High-Redshift Galaxies in the Unicentric Model of the Universe: 《Journal of Modern Physics》2022年第12期1581-1597,共17页Ahmad A. Hujeirat; Recently, a unicentric model of our observable universe was proposed. Accordingly, the big bang was neither a singular event nor invoked by external forces, but rather a frequent event in cosmic life cycles that occur...; 关键词：General Relativity Big Bang Black Holes QSOS Neutron Stars QCD Condensed Matter INCOMPRESSIBILITY SUPERFLUIDITY Super-Conductivity

Variations of broad emission lines from periodicity QSOs under the interpretation of supermassive binary black holes with misaligned circumbinary broad line regions: 《Research in Astronomy and Astrophysics》2021年第9期63-74,共12页Xiang Ji Jun-Qiang Ge You-Jun Lu Chang-Shuo Yan; supported by the National Key R&D Program of China(Grant Nos.2020YFC2201400,2020SKA0120102,and 2016YFA0400704);the National Natural Science Foundation of China(Grant Nos.11690024,11873056,and 11991052);the Strategic Priority Program of the Chinese Academy of Sciences(Grant No.XDB 23040100);the Beijing Municipal Natural Science Foundation(Grant No.1204038)。; Quasars with periodic light curves are considered as candidates of supermassive binary black hole(BBH)systems.One way for further confirmations may be searching for other characteristic signatures,such as those in the...; 关键词：black hole physics QUASARS supermassive black holes emission lines profiles

Decomposing the host galaxy from high-z QSOs using principal component analysis: 《Research in Astronomy and Astrophysics》2019年第10期17-26,共10页Wei He Yi-Ping Wang; support of a grant from the John Templeton Foundation and the National Astronomical Observatories, Chinese Academy of Sciences;the Subaru team and the National Natural Science Foundation of China (Grant No. 11890694);the National Natural Science Foundation of China (Grant Nos. 10173025, 10673013, 10778709, 11073031 and 11653005);the National Basic Research Program of China (973 Program, TG 2000077602); High resolution deep imaging from space and adaptive optics techniques with large ground-based facilities have enabled studies examining faint host galaxies of high redshift quasi-stellar objects (QSOs). However, the ...; 关键词：QUASARS general-galaxies active-galaxies high-redshift-methods data analysis

A compilation of known QSOs for the Gaia mission: 《Research in Astronomy and Astrophysics》2019年第2期151-160,共10页Shi-Long Liao Zhao-Xiang Qi Su-Fen Guo Zi-Huang Cao; makes use of data products from the Wide-field Infrared Survey Explorer, which is a joint project of the University of California, Los Angeles, and the Jet Propulsion Laboratory/California Institute of Technology, funded by the National Aeronautics and Space Administration;provided by the National Development and Reform Commission;supported by grants from the National Natural Science Foundation of China (Grant Nos. 11703065 and 11573054); Quasars are essential for astrometry in the sense that they are spatially stationary because of their large distance from the Sun. The European Space Agency(ESA) astrometric satellite Gaia is scanning the whole sky wi...; 关键词：quasars:general ASTROMETRY PARALLAXES proper motions reference systems catalogs

On the mean radiative efficiency of accreting massive black holes in AGNs and QSOs: 《Science China(Physics,Mechanics & Astronomy)》2017年第10期51-58,共8页XiaoXia Zhang YouJun Lu; the National Key Program for Science and Technology Research and Development(Grant No.2016YFA0400704);the National Natural Science Foundation of China(Grant Nos.11373031,and11390372);the Strategic Priority Program of the Chinese Academy of Sciences(Grant No.XDB 23040100); Radiative efficiency is an important physical parameter that describes the fraction of accretion material converted to radiative energy for accretion onto massive black holes （MBHs）. With the simplest Sottan argumen...; 关键词：black hole galaxies QUASARS

Optical Luminosity Function of the QSOs Observed with the Sloan Digital Sky Survey Data Release Seven (SDSS DR7): 《International Journal of Astronomy and Astrophysics》2014年第3期474-478,共5页Salam Ajitkumar Singh Irom Ablu Meitei Kangujam Yugindro Singh; We have determined the Optical Luminosity Function (OLF) of a sample of 80946 Quasi Stellar Objects (QSOs) taken from the Sloan Digital Sky Survey Data Release Seven (SDSS DR7) with redshift range??0.3 z Mi < -22.5. T...; 关键词：Quasi STELLAR Objects (QSOs) LUMINOSITY Function

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