Zobrazeno 1 - 10
of 23
pro vyhledávání: '"Ke-Liang Huang"'
Publikováno v:
Neoplasma. 69:370-382
Breast cancer is the most common cancer in women. Novel mechanisms and targets are urgently needed to understand and treat this disease due to the complexity of breast cancer. In this study, we evaluated the expression level of tripartite motif-conta
Publikováno v:
Monthly Notices of the Royal Astronomical Society. 427:2881-2888
Using the properties of SDSS DR7 QSOs catalog from Shen et al., the Baldwin effect, its slope evolution, the underlying drive for a large sample of 35019 QSOs with reliable spectral analysis are investigated. We find that the Baldwin effect exists in
Publikováno v:
Monthly Notices of the Royal Astronomical Society. 389:1703-1708
Using a large sample of 26623 quasars with redshifts in the range $1.5 \le z\le 5.1$ with \civ $\lambda$1549 \AA emission line in Fifth Data Release of the Sloan Digital Sky Survey (SDSS), we investigate the cosmological evolution of the Baldwin Effe
Publikováno v:
Astronomy & Astrophysics. 488:113-116
Type II AGNs with polarimetric broad emission line provided strong evidence for the orientation-based unified model for AGNs. We want to investigate whether the polarimetric broad emission line in type II AGNs can be used to calculate their central s
Publikováno v:
Monthly Notices of the Royal Astronomical Society. 372:246-252
Using 7.5-year spectroscopic monitoring data of a sample of 17 Palomar-Green QSOs (PG QSOs) (z=0.061-0.371), we obtain the optical spectral slope for each object at all epochs by a power-law fit to the spectra in continuum bands. All of these 17 PG Q
Publikováno v:
Chinese Astronomy and Astrophysics. 25:41-47
We have studied light variability in an optically selected sample of 32 QSOs with a time span of 18 years. We found about 40% of the sample show variability, and that there is an inverse correlation between the amplitude of variation and the luminosi
Autor:
Donald G. York, Daniel E. Welty, Richard E. Green, Jill Bechtold, Ke Liang Huang, Pushpa Khare, Raghunathan Srianand
Publikováno v:
Monthly Notices of the Royal Astronomical Society. 285:167-180
We present observations of the Lyman alpha forest towards B2 1225+317 taken at a resolution of 18 km/s. A clean sample of Lyman alpha forest lines is extracted after a careful profile fitting analysis and removal of absorption lines of heavy elements
Publikováno v:
Chinese Astronomy and Astrophysics. 21:113-117
The collision of Comet Shoemaker-Levy 9 with Jupiter is essentially a problem of meteor physics. From the basic equations of meteor physics we derive, for the fragments, the height profiles of their velocity, mass loss, luminosity, electron line dens
Autor:
Daniel E. Welty, Jill Bechtold, Varsha P. Kulkarni, Richard F. Green, Donald G. York, Ke-Liang Huang
Publikováno v:
Monthly Notices of the Royal Astronomical Society. 279:197-218
A multitude of absorption lines seen shortward of QSO Ly-alpha emission, that cannot be traced to heavy element absorption systems, are assumed to be Ly-alpha lines arising in intervening clouds. Studies of these Ly-alpha clouds, typically done at 1
Autor:
Ke-liang Huang, Yong-Heng Zhao
Publikováno v:
Chinese Astronomy and Astrophysics. 17:37-42
In the present paper we try to determine the relation of the z-distribution and the ages of pulsars. Using the model of the gravitational field of Galaxy, we calculate the z-scale-height of pulsars which have given initial place and speed distributio