62 citations · 150 across the 28 of their papers we have counts for
13 papers · 1 filter
Identifying Compton-thick active galactic nuclei in the COSMOS. II. Searching among mid-infrared selected AGNs
Xiaotong Guo, Qiusheng Gu, Guanwen Fang +7
Compton-thick active galactic nuclei (CT-AGNs), defined by column density , are so heavily absorbed that their X-ray e…
Identifying Compton-thick AGNs with Machine learning algorithm in Chandra Deep Field-South
Rui Zhang, Xiaotong Guo, Qiusheng Gu +7
Compton-thick active galactic nuclei (CT-AGNs), which are defined by column density , emit feeble X-ray radiation, eve…
Optical+NIR analysis of a Newly Confirmed Einstein ring at z1 from the Kilo-Degree Survey: Dark matter fraction, total and dark matter density slope and IMF
Rui Li, Nicola R. Napolitano, Giuseppe D Ago +16
We report the spectroscopic confirmation of a bright blue Einstein ring in the Kilo Degree Survey (KiDS) footprint: the Einstein ``blue eye''. Spectroscopic data from X-Shooter at…
Identifying Compton-thick AGNs in the COSMOS. I. Among X-ray AGNs with Low Photon Counts
Xiaotong Guo, Qiusheng Gu, Guanwen Fang +4
Compton-thick active galactic nuclei (CT-AGNs), characterized by a significant absorption with column densities of , emi…
An efficient unsupervised classification model for galaxy morphology: Voting clustering based on coding from ConvNeXt large model
Guanwen Fang, Yao Dai, Zesen Lin +6
In this work, we update the unsupervised machine learning (UML) step by proposing an algorithm based on ConvNeXt large model coding to improve the efficiency of unlabeled galaxy mo…
Multi-band analysis of strong gravitationally lensed post-blue nugget candidates from the Kilo-Degree Survey
Rui Li, Nicola R. Napolitano, Linghua Xie +7
During the early stages of galaxy evolution, a significant fraction of galaxies undergo a transitional phase between the ``blue nugget" systems, which arise from the compaction of…
Toward a stellar population catalog in the Kilo Degree Survey: the impact of stellar recipes on stellar masses and star formation rates
Linghua Xie, Nicola R. Napolitano, Xiaotong Guo +11
The Kilo Degree Survey (KiDS) is currently the only sky survey providing optical () plus near-infrared (NIR, ) seeing matched photometry over an area larger than 100…
Multiwavelength Analysis of a Nearby Heavily Obscured AGN in NGC 449
Xiaotong Guo, Qiusheng Gu, Jun Xu +5
We presented the multiwavelength analysis of a heavily obscured active galactic nucleus (AGN) in NGC 449. We first constructed a broadband X-ray spectrum using the latest NuSTAR an…
Multi-wavelength Selected Compton-thick AGNs in Chandra Deep Field-South Survey
Xiaotong Guo, Qiusheng Gu, Nan Ding +2
Even in deep X-ray surveys, Compton-thick active galactic nuclei (CT AGNs, ) are difficult to be identified due to X-ray flux…
The Compact Star-Forming Galaxies at in 3D-HST/CANDELS: AGN and Non-AGN Physical Properties
Shiying Lu, Yizhou Gu, Guanwen Fang +3
We investigate the differences in the stellar population properties, the structure, and the environment between massive compact star-forming galaxies (cSFGs) with or without active…
Physical properties of the CDFS X-ray sources through fitting spectral energy distributions
Xiaotong Guo, Qiusheng Gu, Nan Ding +2
The physical parameters of galaxies and/or AGNs can be derived by fitting their multi-band spectral energy distributions (SEDs). By using CIGALE code, we perform multi-band SED fit…
Constraining the Rastall parameters in static spacetimes with galaxy-scale strong gravitational lensing
Rui Li, Jiancheng Wang, Zhaoyi Xu +1
Recently, Rastall gravity is undergoing a significant surge in popularity. We obtain a power-law total mass-density profile for the inner region (within several effective radius) o…
A scenario on the power-law total mass-density profile of the inner regions of early-type-galaxies
Rui Li, Zhaoyi Xu, Jiancheng Wang +1
We naturally obtain a power-law total mass-density profile for the inner regions (within several effective radius) of early-type galaxies(ETGs) from space-time structures, which ar…