supported by the National Natural Science Foundation of China(Grant Nos.11863003 and 12173010);the Science and Technology Plan Projects of Guizhou Province(Grant No.[2018]5781).
About 2 percent of red clump stars are found to be the lithium-rich and thus the surface lithium increases obviously in some red clump stars.The physical mechanism of the lithium enrichment in these stars has not yet ...
supported by the National Natural Science Foundation of China(Grant Nos.12222302,11603015,12021003,11920101003,and 11633001);the Strategic Priority Research Program of the Chinese Academy of Sciences(Grant No.XDB23000000)。
The past decades have witnessed a lot of progress in gravitational lensing with two main targets:stars and galaxies(with active galactic nuclei).The success is partially attributed to the continuous luminescence of th...
We examine the impact of electromagnetic field on the stability of compact stars corresponding to embedded class one metric using the concept of cracking. For this purpose, we develop the generalized hydrostatic equi-...
Supported by the National Natural Science Foundation of China under Grant Nos 10675024,11075063 and 11265009;the National Found for Fostering Talents of Basic Science under Grant No J1103202.
We investigate the influence of the energy gap(Δ)of the color-flavor locked(CFL)quark phase on the bulk properties of hybrid stars.The relativistic mean field model is used for hadronic matter and the MIT bag model f...
We discuss the impact of hyperons on the neutrino emitting and the gross cooling features of neutron stars with K−and K0 condensations.The results show that hyperons change the density ranges of the direct Urca proces...
Supported by the National Natural Science Foundation of China under Grant No 10221001. LUO Xin-lian would like thank the hospitality of the Center for Gravitational Wave Astronomy at UTB, where some of the work was performed. The authors wish to thank an anonymous referee for his valuable suggestions.
Regardless of the formation mechanism, an exotic object, the double degenerate star (DDS), is introduced and investigated, which is composed of baryonic matter and some unknown fermion dark matter. Different from th...
Supported by the National Natural Science Foundation of China under Grant Nos 10373005, 10673002 and 10778616.
The star HE 1305-0007 is a metal-poor double-enhanced star with metallicity [Fe/H] = -2.0, which is just at the upper limit of the metallicity for the observed double-enhanced stars. Using a parametric model, we find ...
Suooorted by the National Natural Science Foundation of China under Grant No 10573002, and the Key Project of the Ministry of Education of China under Grant No 305001.
Colour confinement is only a supposition, which has not yet been proven in QCD. Here we propose that macroscopic quark-gluon plasma in astrophysics could hardly maintain colourless because of causality. It is expected...
Supported in part by the National Natural Science Foundation of China under Grant No 10573029, and the 0ne Hundred Talents Programme of Chinese Academy of Sciences.
Mapping observations were made towards IRAS 201109-3321 using the Nobeyama 45 m and the Delingha 13.7m radio telescopes. The high angular resolution (- 21″) image with the 45m telescope shows that there is a highve...