activity
20232026
most citedWhite Dwarfs with Infrared Excess from LAMOST Data Release 5

15 citations · 19 across the 15 of their papers we have counts for

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7 papers · 1 filter

astro-ph.HE2024

SMBH binary candidate PKS J2134-0153: Possible multi-band periodic variability and inter-band time lags

Guowei Ren, Mouyuan Sun, Nan Ding +2

Studying the periodic flux-variation behavior of blazars is vital for probing supermassive black hole binaries and the kinematics of relativistic jets. In this work, we report the…

astro-ph.HE2024

The disk reverberation mapping of the lensed quasar Q0957+561

Marcin Marculewicz, Mouyuan Sun, Zhixiang Zhang +1

The measurement of continuum time lags in lensed quasars can effectively probe the accretion physics of quasars. This is because microlensing observations of lensed quasars can pro…

astro-ph.GA2024★ 3 cited

Newly Discovered Changing-look Active Galactic Nuclei from SDSS and LAMOST Surveys

Qian Dong, Zhi-Xiang Zhang, Wei-Min Gu +2

Changing-look Active Galactic Nuclei (CL AGNs) exhibit drastic variations in broad emission lines (BELs), the mechanism of which remains unclear. Expanding the sample of CL AGNs is…

astro-ph.SR2024

Two Dynamically Discovered Compact Object Candidate Binary Systems from LAMOST Low-resolution Survey

Senyu Qi, Wei-Min Gu, Zhi-Xiang Zhang +3

We report two binary systems, LAMOST J035540+381550 (hereafter J035540) and LAMOST J035916+400732 (hereafter J035916), identified through the Large Sky Area Multi-Object Fiber Spec…

astro-ph.SR2024★ 1 cited

A Sample of Compact Object Candidates in Single-lined Spectroscopic Binaries from LAMOST Medium Resolution Survey

Hao-Bin Liu, Wei-Min Gu, Zhi-Xiang Zhang +3

The stellar spectra from LAMOST Medium Resolution Survey can be used to search for compact objects in binaries. The LAMOST DR10 catalog includes > 980, 000 targets with multiple me…

astro-ph.HE2024

A reverberation mapping study of a highly variable AGN 6dFGS gJ022550.0-060145

Danyang Li, Mouyuan Sun, Junfeng Wang +2

We use LCOGT observations (MJD ) with a total exposure time of hours and a median cadence of days to measure the inter-band time delays (with respect…

astro-ph.SR2024

The hidden companion in J1527: a 0.69 solar-mass white dwarf?

Zhi-Xiang Zhang, Hao-Bin Liu, Tuan Yi +2

Finding nearby neutron stars can probe the supernova and metal-enrichment histories near our Solar system. Recently, Lin et al. 2023 reported an exciting neutron star candidate, 2M…