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A list of all the posts and pages found on the site. For you robots out there is an XML version available for digesting as well.
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About me
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Cosmology with Large Scale Structure (BAO & DESI)
Measuring the expansion history of the Universe using Baryon Acoustic Oscillations.
Black Hole and Galaxy Evolution in the Context of Large-Scale Structures
Investigating the co-evolution of galaxies and supermassive black holes within their dark matter environments.
Weak Gravitational Lensing
Weighing the invisible dark matter halos using the deflection of light.
Research Topics
An overview of my main research interests and topics.
Posts
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Blog Post number 4
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portfolio
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publications
Chinese version of A. Zee's Quantum field theory in a nutshell
Published in USTC Press, 2022
A Zee "Chinese version of A. Zee's Quantum field theory in a nutshell." USTC Press, 2022.
Halo Mass-observable Proxy Scaling Relations and Their Dependencies on Galaxy and Group Properties
Published in Astrophysical Journal, 2024
Ziwen Zhang, Huiyuan Wang, Wentao Luo, Houjun Mo, Jun Zhang, Xiaohu Yang, et al. "Halo Mass-observable Proxy Scaling Relations and Their Dependencies on Galaxy and Group Properties." Astrophysical Journal, 2024.
Black Hole-Halo Mass Relation from UNIONS Weak Lensing
Published in Astrophysical Journal Letters, 2024
Qinxun Li, Martin Kilbinger, Wentao Luo, Kai Wang, Huiyuan Wang, Anna Wittje, et al. "Black Hole-Halo Mass Relation from UNIONS Weak Lensing." Astrophysical Journal Letters, 2024.
Point spread function errors for weak lensing - density cross-correlations: Application to UNIONS
Published in Astronomy & Astrophysics, 2024
Ziwen Zhang, Martin Kilbinger, Fabian Peters, Qinxun Li, Wentao Luo, Lucie Baumont, et al. "Point spread function errors for weak lensing - density cross-correlations: Application to UNIONS." Astronomy & Astrophysics, 2024.
Static Microlensing: Concept, Method and Candidates
Published in arXiv e-prints, 2024
Qi Guo, Leyao Wei, Wentao Luo, Shurui Lin, Qinxun Li, YiFu Cai, et al. "Static Microlensing: Concept, Method and Candidates." arXiv e-prints, 2024.
Dark Matter Halos of Luminous Active Galactic Nuclei from Galaxy-Galaxy Lensing with the HSC Subaru Strategic Program
Published in Astrophysical Journal, 2024
Wentao Luo, John Silverman, Surhud More, Andy Goulding, Hironao Miyatake, Takahiro Nishimichi, et al. "Dark Matter Halos of Luminous Active Galactic Nuclei from Galaxy-Galaxy Lensing with the HSC Subaru Strategic Program." Astrophysical Journal, 2024.
Testing Cotton gravity as dark matter substitute with weak lensing
Published in Science China Physics, Mechanics, and Astronomy, 2025
Geyu Mo, Qingqing Wang, Xin Ren, Weitong Yan, Qinxun Li, Yen Ong, et al. "Testing Cotton gravity as dark matter substitute with weak lensing." Science China Physics, Mechanics, and Astronomy, 2025.
The density profile of Milky Way dark matter halo constrained from the OGLE microlensing sky map
Published in Astronomy & Astrophysics, 2025
S. Lin, W. Luo, Y. Cai, Q. Guo, L. Wei, B. Wang, et al. "The density profile of Milky Way dark matter halo constrained from the OGLE microlensing sky map." Astronomy & Astrophysics, 2025.
DESI DR2 reference mocks: clustering results from Uchuu-BGS and LRG
Published in arXiv e-prints, 2025
E. Fern'andez-Garc'ia, F. Prada, A. Smith, J. DeRose, A. Ross, S. Bailey, et al. "DESI DR2 reference mocks: clustering results from Uchuu-BGS and LRG." arXiv e-prints, 2025.
Constraints on neutrino physics from DESI DR2 BAO and DR1 full shape
Published in Physical Review D, 2025
W. Elbers, A. Aviles, H. Noriega, D. Chebat, A. Menegas, C. Frenk, et al. "Constraints on neutrino physics from DESI DR2 BAO and DR1 full shape." Physical Review D, 2025.
Construction of the damped Lyensuremathalpha absorber catalog for DESI DR2 Lyensuremathalpha BAO
Published in Physical Review D, 2025
A. Brodzeller, M. Wolfson, D. Santos, M. Ho, T. Tan, M. Pieri, et al. "Construction of the damped Lyensuremathalpha absorber catalog for DESI DR2 Lyensuremathalpha BAO." Physical Review D, 2025.
Cosmological implications of DESI DR2 BAO measurements in light of the latest ACT DR6 CMB data
Published in Physical Review D, 2025
C. Garcia-Quintero, H. Noriega, A. de Mattia, A. Aviles, K. Lodha, D. Chebat, et al. "Cosmological implications of DESI DR2 BAO measurements in light of the latest ACT DR6 CMB data." Physical Review D, 2025.
DESI DR2 results. I. Baryon acoustic oscillations from the Lyman alpha forest
Published in Physical Review D, 2025
DESI Collaboration, M. Abdul Karim, J. Aguilar, S. Ahlen, C. Allende Prieto, O. Alves, et al. "DESI DR2 results. I. Baryon acoustic oscillations from the Lyman alpha forest." Physical Review D, 2025.
DESI DR2 results. II. Measurements of baryon acoustic oscillations and cosmological constraints
Published in Physical Review D, 2025
DESI Collaboration, M. Abdul Karim, J. Aguilar, S. Ahlen, S. Alam, L. Allen, et al. "DESI DR2 results. II. Measurements of baryon acoustic oscillations and cosmological constraints." Physical Review D, 2025.
Contribution: I performed the consistency tests of BAO measurements and wrote Section III.C. I also made Figure 6 and 13, which show the BAO and SN distance measurements in comparison to various cosmological models.
Extended dark energy analysis using DESI DR2 BAO measurements
Published in Physical Review D, 2025
K. Lodha, R. Calderon, W. Matthewson, A. Shafieloo, M. Ishak, J. Pan, et al. "Extended dark energy analysis using DESI DR2 BAO measurements." Physical Review D, 2025.
Validation of the DESI DR2 measurements of baryon acoustic oscillations from galaxies and quasars
Published in Physical Review D, 2025
U. Andrade, E. Paillas, J. Mena-Fern'andez, Qinxun Li, A. Ross, S. Nadathur, et al. "Validation of the DESI DR2 measurements of baryon acoustic oscillations from galaxies and quasars." Physical Review D, 2025.
Contribution: I performed the intrinsic galaxy property split tests and several post-unblinding tests described in Sec. VII.B and VII.D.
Radio AGN feedback sustains quiescence only in a minority of massive galaxies
Published in arXiv e-prints, 2025
Huiling Liu, Yan Lu, Hui Hong, Huiyuan Wang, Houjun Mo, Jing Wang, et al. "Radio AGN feedback sustains quiescence only in a minority of massive galaxies." arXiv e-prints, 2025.
UNIONS: The Ultraviolet Near-infrared Optical Northern Survey
Published in Astronomical Journal, 2025
Stephen Gwyn, Alan McConnachie, Jean-Charles Cuillandre, Kenneth Chambers, Eugene Magnier, Thomas de Boer, et al. "UNIONS: The Ultraviolet Near-infrared Optical Northern Survey." Astronomical Journal, 2025.
Validation of the DESI DR2 Lyensuremathalpha BAO analysis using synthetic datasets
Published in Physical Review D, 2026
L. Casas, H. Herrera-Alcantar, J. Chaves-Montero, A. Cuceu, A. Font-Ribera, M. Lokken, et al. "Validation of the DESI DR2 Lyensuremathalpha BAO analysis using synthetic datasets." Physical Review D, 2026.
CFHT MegaCam Two Deep Fields Imaging Survey (2DFIS) I: Overview
Published in arXiv e-prints, 2026
Binyang Liu, Wentao Luo, Martin Kilbinger, Shenming Fu, Ian Dell'Antonio, Liping Fu, et al. "CFHT MegaCam Two Deep Fields Imaging Survey (2DFIS) I: Overview." arXiv e-prints, 2026.
The Compilation and Validation of the Spectroscopic Redshift Catalogs for the DESI-COSMOS and DESI-XMM-LSS Fields
Published in Astronomical Journal, 2026
J. Ratajczak, K. Dawson, N. Weaverdyck, J. Aguilar, S. Ahlen, E. Armengaud, et al. "The Compilation and Validation of the Spectroscopic Redshift Catalogs for the DESI-COSMOS and DESI-XMM-LSS Fields." Astronomical Journal, 2026.
talks
Undergraduate Academic Annual Conference: Dark Matter Halo Mass Measurement with Galaxy-galaxy Lensing
Published:
This is a talk of Undergraduate Academic Annual Conference of Department of Astronomy, USTC. In this talk, I introduce basic principles of using galaxy-galaxy lensing to measure dark matter halo mass and some recent progress of two of my works, satellite lensing of SDSS and comparison between weak lensing mass and caustic mass.
2022 PKU-DoA Undergraduate Astronomy Symposium: Subhalo Properties from SDSS Weak Lensing
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This is a talk of 2022 PKU-DoA Undergraduate Astronomy Symposium. In this talk, I introduce my work on subhalo mass measurement from SDSS weak lensing. We use Luo et al. (2017) SDSS DR7 shape catalog to study subhaloes in Yang et al. (2006) group catalog. We find an unreported selection bias between host halo mass and separation between satellite galaxies and their central galaxies. We develop a weigting method to correct this bias. With a 2 free paramater model to describe excess surface density of subhalo, we fit the weighted lensing signal by MCMC. In this talk, I will first introduce galaxy-galaxy lensing method and subhalo density profile, then talk about the methods and main results of this work.
Cluster Seminar: Subhalo Properties in SDSS DR7 with Galaxy-galaxy Lensing
Published:
This is a talk of cluster seminar of Department of Astronomy, Umich. In this talk, I will focus on our recent work about subhalo properties in Yang et al. (2007) 's group catalog based on SDSS DR7. We devide satellite galaxies into different stellar mass and BCG-center separation bins, then measure the lensing signals around these satellites. We discover an unreported selection effect between separation and host halo mass and use a weighting method to correct it. With a 2 free paramater model to describe excess surface density of subhalo, we fit the weighted lensing signal by MCMC. In this talk, I will first introduce galaxy-galaxy lensing method and subhalo density profile, then talk about the methods and main results of this work.
Stellar-Subhalo Mass Relation as a Probe to Galaxy-Subhalo Connection
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Talk at the China Gravitational Lensing Workshop XI in Qingdao.
Introduction to Modern Astrophysics
Published:
Invited talk at the Southern University of Science & Technology 1st Student Physics & Mathametics Workshop.
Introduction to Modern Cosmology
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Invited talk at the Southern University of Science & Technology 2nd Student Physics & Mathametics Workshop.
DESI DR2 BAO Results and Cosmological Implications
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Invited talk at the Graduate Student Journal Club, USTC.
DESI BAO and Evolving Dark Energy
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Invited talk at the Southern University of Science & Technology 3rd Student Physics & Mathametics Workshop.
BAO Validation for Uchuu Reference Mock
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Talk at the DESI Collaboration Meeting at Berkeley.
Understanding the Uncertainty of Baryon Acoustic Oscillations
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Talk at the U.Utah Graduate Research Seminar.