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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Showing 2025Show all

5 papers · 1 filter

astro-ph.SR2025

A Study of Cataclysmic Variables from the eFEDS Survey

Rui Wang, Wei-Min Gu, Zhi-Xiang Zhang +3

We present 17 cataclysmic variables (CVs) obtained from the crossmatch between the Sloan Digital Sky Survey (SDSS) and eROSITA Final Equatorial Depth Survey (eFEDS), including 8 kn…

astro-ph.GA2025

Discovery of Repeating Transitions in 16 Changing-look Active Galactic Nuclei

Qian Dong, Zhi-Xiang Zhang, Wei-Min Gu +5

The repeating changing-look active galactic nuclei (RCL AGNs) exhibit multiple appearances and disappearances of broad emission lines (BELs), whose underlying mechanism remains a p…

astro-ph.GA2025

An H Cloud in the HI Tail: Recent Star Formation in the Outskirts of NGC 4258 Revealed by Nanshan 1-m Telescope

Cheng Cheng, Jia-Sheng Huang, Peng Wei +12

We present first-light deep H imaging taken with the Nanshan 1-meter wide-field telescope on the local galaxy NGC 4258, alongside archival data from Hubble Space telescope (HST)…

astro-ph.GA2025

A Sandwich Model for Changing-Look AGNs

Qian-Qi Ma, Wei-Min Gu, Zhen-Yi Cai +4

The spectral variability of changing-look active galactic nuclei (CL-AGNs) occurred on timescales of years to tens of years, posing a significant challenge to the standard thin dis…

astro-ph.SR2025

A Sample of Extreme Eclipsing Binaries with Accretion Disks from LAMOST and ZTF

Jiangxinxin Zhuang, Zhi-Xiang Zhang, Wei-Min Gu +1

Extreme eclipsing binaries may harbor peculiar physical properties. In this work, we aim to identify a sample of such systems by selecting binaries with pronounced eclipsing light…