The Large Sky Area Multi-Object Fiber Spectroscopic Telescope (LAMOST)
- S. Yao, Xue-bing Wu, S. Shen
- 15 August 2012
Physics
Astronomy and Computing
Discovery of 21 New Changing-look AGNs in the Northern Sky
- Qian Yang, Xue-bing Wu, Yuanqi Liu
- 22 November 2017
Physics
Astrophysical Journal
The rare case of changing-look (CL) active galactic nuclei (AGNs), with the appearance or disappearance of broad Balmer emission lines within a few years, challenges our understanding of the AGN…
Exploring the Radio Spectral Energy Distribution of the Ultraluminous Radio-quiet Quasar SDSS J0100+2802 at Redshift 6.3
- Yuanqi Liu, Ran Wang, Fu Xu
- 6 March 2022
Physics
Astrophysical Journal
We report deep Karl G. Jansky Very Large Array (VLA) observations of the optically ultraluminous and radio-quiet quasar SDSS J010013.02+280225.8 (hereafter J0100+2802) at redshift z = 6.3. We…
The Large Sky Area Multi-object Fiber Spectroscopic Telescope (LAMOST) Quasar Survey: The Fourth and Fifth Data Releases
- S. Yao, Xue-bing Wu, S. Shen
- 2019
Physics
We present Data Releases 4 and 5 of the quasar catalog from the quasar survey by the Large Sky Area Multi-object Fiber Spectroscopic Telescope (LAMOST), which includes quasars observed between 2015…
Constraining the Quasar Radio-loud Fraction at z ∼ 6 with Deep Radio Observations
- Yuanqi Liu, Ran Wang, Jianan Li
- 14 December 2020
Physics
Astrophysical Journal
We carry out a series of deep Karl G. Jansky Very Large Array (VLA) S-band observations of a sample of 21 quasars at z ∼ 6. The new observations expand the searches of radio continuum emission to the…
Is the X-ray bright z = 5.5 quasar SRGE J170245.3+130104 a blazar?
- T. An, Ailing Wang, S. Sazonov
- 20 December 2022
Physics
Monthly notices of the Royal Astronomical Society
Jets may have contributed to promoting the growth of seed black holes in the early Universe, and thus observations of radio-loud high-redshift quasars are crucial to understanding the growth and…
VLBA Reveals the Absence of a Compact Radio Core in the Radio-intermediate Quasar J2242+0334 at z = 5.9
- Yuanqi Liu, Ran Wang, A. Omont
- 7 October 2022
Physics
Astrophysical Journal Letters
High-resolution imaging is crucial for exploring the origin and mechanism of radio emission in quasars, especially at high redshifts. We present 1.5 GHz Very Long Baseline Array (VLBA) images of the…