Výsledky vyhledávání

Report

The associated absorption features in quasar spectra of the Sload Digital Sky survey .I. \MgII\ absorption doublets

Autor: Zhi-Fu, Chen, Wei-Rong, Huang, Ting-Ting, Pang, Hong-Yan, Huang, Da-Sheng, Pan, Min, Yao, Wei-Jing, Nong, Mei-Mei, Lu

Using the SDSS spectra of quasars included in the DR7Q or DR12Q catalogs, we search for Mg II narrow absorption doublets in the spectra data around Mg II emission lines. We obtain 17,316 Mg II doublets, within the redshift range of 0.3299<= z_abs <=

Externí odkaz: http://arxiv.org/abs/1801.07998

Zobrazit plný text záznamu

Correlation between the ionizing continuum and variable C iv broad absorption line in multi-epoch observations of SDSS J141007.74+541203.3

Autor: Cai-Juan Pan, Hong-Yan Huang, Zhi-Kao Yao, Wei-Jing Nong, Wei-Jian Lu, Yi-Ping Qin, Yu-Tao Zhou, Ying-Ru Lin, Qing-Lin Han, Wei-Rong Huang, Mei-Mei Lu, Min Yao

Correlations between the variations of quasar absorption lines and the ionizing continuum have been confirmed recently in systematic studies. However, no convincing individual case is reported. We present a statistical analysis of the variable C iv b

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::eda46932858b7ec626d67fa03782de1c
http://arxiv.org/abs/1905.02407

Zobrazit plný text záznamu

Evidence for photoionization-driven variability in narrow absorption lines

Autor: Min Yao, Wei-Jian Lu, Da-Sheng Pan, Zhi-Kao Yao, Wei-Jing Nong, Cai-Juan Pan, Yi-Ping Qin, Hong-Qiang Huang, Mei-Mei Lu, Hong-Yan Huang, Ying-Ru Lin, Wei-Rong Huang, Qing-Lin Han

In this Letter, we report the discovery of a strong correlation between the variability of narrow absorption lines (NALs) and the ionizing continuum from a two-epoch spectra sample of 40 quasars containing 52 variable C iv {\lambda}{\lambda}1548; 155

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::db5bb95ca2570bd2e764fbf5f8874168

Zobrazit plný text záznamu

On correlation between seismic activities and focal mechanisms of subsequent strong earthquakes

Autor: Xiao-dong Zhang, Ming-Xiao Li, Mei-Mei Lu, Hui-Min Wang

Publikováno v: Acta Seismologica Sinica. 19:406-416

On the basis of the results from spatial-temporal scanning of moderate seismic activities prior to 63 strong earthquakes occurred since 1966, we investigate in this paper the characteristics of anomalous evolution of moderate seismic activities prior

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::ddeaa834ab3c008a72fd0871e8951f5d
https://doi.org/10.1007/s11589-004-0406-8

Zobrazit plný text záznamu