129 citations
Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- Chinese Academy of SciencesCN84 papers
- University of Science and Technology of ChinaCN81 papers
- National Astronomical ObservatoriesCN53 papers
- Yunnan ObservatoriesCN25 papers
- Shanghai Astronomical ObservatoryCN22 papers
- Anhui Normal UniversityCN20 papers
- University of Chinese Academy of SciencesCN19 papers
- Purple Mountain ObservatoryCN16 papers
- Nanjing Institute of Astronomical Optics & TechnologyCN15 papers
- UNSW SydneyAU15 papers
- Guangzhou UniversityCN12 papers
- Australian Astronomical ObservatoryAU11 papers
19 papers · 1 filter
Einstein Probe discovery of EP240408a: a peculiar X-ray transient with an intermediate timescale
Wenda Zhang, Weimin Yuan, Zhixing Ling +136
We report the discovery of a peculiar X-ray transient, EP240408a, by Einstein Probe (EP) and follow-up studies made with EP, Swift, NICER, GROND, ATCA and other ground-based multi-…
Intra-night optical flux and polarization variability of BL~Lacertae during its 2020 2021 high state
Rumen Bachev, Tushar Tripathi, Alok C. Gupta +15
In this work, we report the presence of rapid intra-night optical variations in both -- flux and polarization of the blazar BL Lacertae during its unprecedented 2020--2021 high sta…
Optical flux and spectral variability of BL Lacertae during its historical high outburst in 2020
Nibedita Kalita, Yuhai Yuan, Minfeng Gu +9
BL Lacertae had undergone a series of historical high flux activity over a year, from August 2020 in the optical to VHE -rays. In this paper, we report on optical flux and spect…
Compact Radio Emission from Nearby Galaxies with Mid-infrared Nuclear Outbursts
B. B. Dai, X. W. Shu, N. Jiang +5
We present 5.5 GHz observations with the VLA of a sample of nearby galaxies with energetic nuclear outbursts at mid-infrared (MIR) bands. These observations reach a uniform depth d…
Multiwavelength Study of an X-ray Tidal Disruption Event Candidate in NGC 5092
Dongyue Li, R. D. Saxton, Weimin Yuan +7
We present multiwavelength studies of a transient X-ray source, XMMSL1 J131952.3+225958, associated with the galaxy NGC 5092 at detected in the XMM-Newton SLew survey (XM…
Multi-wavelength observations of the BL Lac object Fermi J1544-0649: one year after its awakening
P. H. T. Tam, P. S. Pal, Y. D. Cui +15
We report observations of a transient source \fermi\ from radio to \grs. \fermi\ was discovered by the {\it Fermi-LAT} in May 2017. Follow-up {\it Swift-XRT} observations revealed…
Rapid "Turn-on" of type 1 AGN in a quiescent early type galaxy SDSS1115+0544
Lin Yan, Tinggui Wang, Jiang Ning +8
We present a detailed study of a transient in the center of SDSS1115+0544 based on the extensive UV, optical, mid-IR light curves (LC) and spectra over 1200 days. The host galaxy i…
SDSS J211852.96-073227.5: a new γ-ray flaring narrow-line Seyfert 1 galaxy
Hui Yang, Weimin Yuan, Su Yao +6
We report on the identification of a new γ-ray-emitting narrow-line Seyfert 1 (NLS1) galaxy, SDSS J211852.96-073227.5 (hereinafter J2118-0732). The galaxy, at a redshift of 0.26, i…
Optical Observations of LIGO Source GW 170817 by the Antarctic Survey Telescopes at Dome A, Antarctica
Lei Hu, Xuefeng Wu, I. Andreoni +30
The LIGO detection of gravitational waves (GW) from merging black holes in 2015 marked the beginning of a new era in observational astronomy. The detection of an electromagnetic si…
Central Engine and Host Galaxy of RXJ 1301.9+2747: A Multiwavelength View of a Low-mass Black Hole Active Galactic Nuclei with Ultra-soft X-ray Emission
Xinwen Shu, Tinggui Wang, Ning Jiang +3
RXJ 1301.9+2747 is an optically identified very low mass AGN candidate with M_BH~1x10^6M_sun, which shows extremely soft X-ray emission and unusual X-ray variability in the form of…
Evidence for Fluorescent Fe II Emission from Extended Low Ionization Outflows in Obscured Quasars
Tinggui Wang, Gary Ferland, Chenwei Yang +2
Recent studies have shown that outflows in at least some broad absorption line (BAL) quasars are extended well beyond the putative dusty torus. Such outflows should be detectable i…
Long Fading Mid-Infrared Emission in Transient Coronal Line Emitters: Dust Echo of Tidal Disruption Flare
Liming Dou, Ting-gui Wang, Ning Jiang +3
The sporadic accretion following the tidal disruption of a star by a super-massive black hole (TDE) leads to a bright UV and soft X-ray flare in the galactic nucleus. The gas and d…
The WISE Detection of an Infrared Echo in Tidal Disruption Event ASASSN-14li
Ning Jiang, Liming Dou, Tinggui Wang +3
We report the detection of a significant infrared variability of the nearest tidal disruption event (TDE) ASASSN-14li using Wide-field Infrared Survey Explorer} and newly released…
X-ray spectral and temporal analysis of Narrow Line Seyfert 1 galaxy Was 61
Liming Dou, Ting-Gui Wang, Yanli Ai +3
We present an analysis of spectrum and variability of the bright reddened narrow line Seyfert 1 galaxy Was~61 using 90 ks archival {\it XMM-Newton} data. The X-ray spectrum in 0.2-…
Detection of a possible X-ray Quasi-periodic Oscillation in the Active Galactic Nucleus 1H~0707-495
Hai-Wu Pan, Weimin Yuan, Su Yao +4
Quasi-periodic oscillation (QPO) detected in the X-ray radiation of black hole X-ray binaries (BHXBs) is thought to originate from dynamical processes in the close vicinity of the…
Identification of a New -ray-emitting narrow-line Seyfert 1 Galaxy, at Redshift
Su Yao, Weimin Yuan, Hongyan Zhou +4
We report on the identification of a new -ray-emitting narrow-line Seyfert 1 (NLS1) galaxy, SDSS J122222.55+041315.7, which increases the number of known objects of this remarka…
An Unobscured type II quasar candidate: SDSS J012032.19-005501.9
Y. Li, W. Yuan, H. Y. Zhou +4
We report the finding of an unobscured type II Active Galactic Nuclei (AGN) candidate, SDSS J012032.19-005501.9 at a relatively high redshift of 0.601,which shows a number of unusu…
Rapid Infrared Variability of Three Radio-loud Narrow-line Seyfert 1 Galaxies: A View from the Wide-field Infrared Survey Explorer
Ning Jiang, Hong-Yan Zhou, Luis C. Ho +6
Using newly released data from the Wide-field Infrared Survey Explorer, we report the discovery of rapid infrared variability in three radio-loud narrow-line Seyfert 1 galaxies (NL…
Extreme Coronal Line Emitters: Tidal Disruption of Stars by Massive Black Holes in Galactic Nuclei?
Tinggui Wang, Hongyan Zhou, S. Komossa +3
Tidal disruption of stars by supermassive black holes at the centers of galaxies is expected to produce unique emission line signatures, which have not yet been explored adequately…