Detection of a Subparsec Diameter Disk in the Nucleus of NGC 4258
- L. GreenhillD. JiangJ. MoranM. ReidK. LoM. Claussen
- 1 February 1995
Physics
The Jet Power, Radio Loudness, and Black Hole Mass in Radio-loud Active Galactic Nuclei
Jet formation is thought to be closely connected with the mass of the central supermassive black hole in active galactic nuclei. The radio luminosity commonly used in investigating this issue is…
A Narrow-Line Seyfert 1-Blazar Composite Nucleus in 2MASX J0324+3410
- Hongyan ZhouHongyan Zhou D. Jiang
- 13 February 2007
Physics
We report the identification of 2MASX J032441.19+341045.9 (hereafter 2MASX J0324+3410) with an appealing object that shows the dual properties of both a narrow-line Seyfert 1 galaxy (NLS1) and a…
EVN observation of three Broad Absorption Line quasars
- D. JiangTing-gui Wang
- 2003
Physics
We present the results of European VLBI Network observations of 3 Broad Absorption Line quasars at 1.6 GHz. They are all compact with linear sizes less than 1 kpc. The flat spectral source, J1556 +…
A 6.7 GHz Methanol Maser Survey. II. Low Galactic Latitudes
We report the results of our systematic survey for Galactic 6.7 GHz Class II CH3OH maser emission toward a sample of young stellar objects. The survey was conducted with the Shanghai Tianma Radio…
The debeamed luminosity, sychrotron peak frequency and black hole mass of BL Lac objects
- Zhongzu WuZhongzu WuM. GuD. Jiang
- 8 April 2008
Physics
We estimate the intrinsic luminosities and synchrotron peak frequencies using the derived Doppler factor for a sample of 170 BL Lac objects, of which the synchrotron peak frequency is derived by…
A kinematic study of the compact jet in quasar B3 1633+382
- Yi LiuD. JiangZ. ShenM. Karouzos
- 21 June 2010
Physics
We present a study of the motion of compact jet components in quasar B3 1633+382. Through analyzing 14 epochs of VLBI observations of three components (B1, B2, and B3) at 22 GHz, we find two…
A 6.7 GHz Methanol Maser Survey at High Galactic Latitudes
We performed a systematic 6.7 GHz Class II methanol maser survey using the Shanghai Tianma Radio Telescope toward _targets selected from the all-sky Wide-Field Infrared Survey Explorer (WISE) point…
Statistical properties of 6.7 GHz methanol maser sources
- Ye XuXing-wu ZhengD. Jiang
- 1 February 2003
Physics
We present a statistical analysis of 482 6.7 GHz methanol maser sources from the available literature, on their maser emission and the characteristics of their associated infrared sources. On the…
A 5 GHz Southern Hemisphere VLBI Survey of Compact Radio Sources. II.
We report the results of a 5 GHz Southern Hemisphere snapshot VLBI observation of a sample of blazars. The observations were performed with the Southern Hemisphere VLBI Network plus the Shanghai…
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