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Discovery of an isolated dark dwarf galaxy in the nearby universe
Jin-Long Xu, Ming Zhu, Naiping Yu +4
Based on a new HI survey using the Five-hundred-meter Aperture Spherical radio Telescope (FAST), combined with the Pan-STARRS1 images, we identified an isolated HI cloud without an…
Long Term Spectral Evolution of Tidal Disruption Candidates Selected by Strong Coronal Lines
Chenwei Yang, Tinggui Wang, Gary Ferland +3
We present results of follow-up optical spectroscopic observations of seven rare, extreme coronal line emitting galaxies reported by Wang et al. (2012) with Multi-Mirror Telescope…
Anomalously Steep Reddening Law in Quasars: An Exceptional Example Observed in IRAS14026+4341
Peng Jiang, Hongyan Zhou, Tuo Ji +7
A fraction of the heavily reddened quasars require a reddening curve which is even steeper than that of the Small Magellanic Cloud. In this paper, we thoroughly characterize the an…
Discovery of six high-redshift quasars with the Lijiang 2.4m telescope and the Multiple Mirror Telescope
Xue-Bing Wu, Wen-Wen Zuo, Qian Yang +6
Quasars with redshifts greater than 4 are rare, and can be used to probe the structure and evolution of the early universe. Here we report the discovery of six new quasars with …
Discovery of A Variable Broad Absorption Line in the BL Lac object PKS 0138-097
Zhang Shaohua, Wang Huiyuan, Zhou Hongyan +2
We report the discovery of a Broad Absorption Line (BAL) of \sim 10^4 km s-1 in width in the previously known BL Lac object PKS 0138-097, which we tentatively identified as a Mg II…
Towards Detecting The 2175-Å Dust Feature Associated With Strong High Redshift Mg ßII Absorption Lines
Peng Jiang, Jian Ge, Hongyan Zhou +2
We report detections of 39 2175-Å dust extinction bump candidates associated with strong Mg II absorption lines at z 1--1.8 on quasar spectra in Sloan Digital Sky Survey (SDS…