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241 papers · 1 filter
ALMA observations reveal no preferred outflow--filament and outflow--magnetic field orientations
T. Baug, Ke Wang, Tie Liu +12
We present a statistical study on the orientation of outflows with respect to large-scale filaments and the magnetic fields. Although filaments are widely observed toward Galactic…
The growth of bulges and discs in relatively HI-rich galaxies: indication from HI scaling relations
Xinkai Chen, Jing Wang, Xu Kong +3
We study the relation between the properties of the bulge/disc components and the HI mass fraction of galaxies. We find that at fixed stellar mass, disc colours are correlated with…
Kinematic signatures of reverberation mapping of close binaries of supermassive black holes in active galactic nuclei. II. Atlas of two-dimensional transfer functions
Yu-Yang Songsheng, Ming Xiao, Jian-Min Wang +1
Most large galaxies harbor supermassive black holes (SMBHs) in their centers, and galaxies merge. Consequently, binary SMBHs should be common in galactic nuclei. However, close bin…
SDSS-IV MaNGA: Internal mass distributions and orbital structures of early-type galaxies and their dependence on environment
Yunpeng Jin, Ling Zhu, R. J. Long +3
In our earlier 2019 paper, we evaluated the reliability of Schwarzschild's orbit-superposition dynamical modelling method in estimating the internal mass distribution, intrinsic st…
DEEM, a versatile platform of FRD measurement for highly multiplexed fibre systems in astronomy
Yunxiang Yan, Qi Yan, Gang Wang +6
We present a new method of DEEM, the direct energy encircling method, for characterising the performance of fibres in most astronomical spectroscopic applications. It's a versatile…
A modified method for determining the FRD and length properties of optical fibres in astronomy
Yunxiang Yan, Gang Wang, Weimin Sun +4
Focal ratio degradation (FRD) is a major contributor to throughput and light loss in a fibre spectroscopic telescope system. We combine the guided mode theory in geometric optics a…