Research:
Galaxy formation and evolution
Cosmology and large scale structure
Galactic dynamics and our Milky Way
Galaxy groups and clusters
Weak gravitational lensing
Bio:
2020:Researcher, Shanghai Jiaotong University
2017-2019: Project Researcher, Kavli IPMU, the University of Tokyo
2013-2016:Postdoc, Institute for Computational Cosmology, Durham University
2013:Ph.D. in Astrophysics, Shanghai Astronomical Observatory, CAS
2007: B.Sc. in Astronomy, Nanjing University
Award:
Durham Junior Research Fellowship
Excellent Young Scientists Fund
Research Interests:
Under the standard theory of structure formation in our Universe, galaxies form in the center of dark matter haloes. Smaller haloes, together with the galaxies they host, can merge with larger dark matter haloes and become the so-called substructures and satellite galaxies. These satellites, orbiting around the central massive galaxy, would gradually lose their stellar material, which form the so-called stellar streams and stellar halos around central galaxies. Under this picture, my research combines both observational data and numerical simulations. By large sample statistics, survey imaging data processing and efficient numerical computation, my research focuses on galaxy formation and evolution, galaxy-halo connection and our own Milky Way Galaxy. I compare observational facts against theoretical predictions. The more detailed content of my research involves: small satellite galaxies and near field cosmology, the connection between satellites and central galaxies, central galaxy- host dark matter halo connection, extended and faint stellar halos of centrals, weak gravitational lensing measurements, dynamical modelling of Galactic halos, Milky Way mass measurement and measuring the proper motion of stars in our Milky Way.
Recent publications:
Zhang, Y., Wang, W., Han, J., 2023, Using two point correlation functions to understand the assembly histories of Milky Way-like galaxies, submitted to ApJ
Wang, W., Zhu, L., Jing, Y.P., 2023, Unraveling the Complexity of Dwarf Galaxy Dynamics: A Study of Binary Orbital Motions, ApJ, 956, 91
Alonso, P., Wang, W., Zhang, J., 2023, Dark against Luminous Matter around Isolated Central Galaxies: A Comparative Study between Modern Surveys and IllustrisTNG, ApJ, 947, 19
Wang, W., Zhu, L., Li, Z., et al., 2022, Is the Core-cusp Problem a Matter of Perspective? Jeans Anisotropic Modeling against Numerical Simulations, ApJ, 941, 108
Shi, R., Wang, W., Li, Z., et al., 2022, A machine learning approach to infer the accreted stellar mass fractions of central galaxies in the TNG100 simulation, MNRAS, 515, 3938
Wang, W., Li, X., Shi, J., et al., 2021, The stellar mass in and around isolated central galaxies: connections to the total mass distribution through galaxy-galaxy lensing in the Hyper Suprime-Cam survey, ApJ, 919, 25
Qiu, T., Wang, W., Takada, M., et al., 2021, Proper motion measurements for stars up to 100 kpc with Subaru HSC and SDSS Stripe 82, MNRAS, 501, 5149
Wang, W., Takada, M., Li, X., et al., 2020, A comparative study of satellite galaxies in Milky Way-like galaxies from HSC, DECaLS and SDSS, MNRAS, 500, 3776
Wang, W., Han, J.,Cautun, M., et al., 2020, The mass of our Milky Way, invited review by SCPMA
Wang, W., Han, J., Sonnenfeld, A., et al., 2019, The stellar halo of isolated central galaxies in the Hyper Suprime-Cam imaging survey, MNRAS, 487, 1580
Wang, W., Han, J., Cole, S., et al., 2018, What to expect from dynamical modelling of galactic haloes - II. The spherical Jeans equation,MNRAS, 476, 5669
Wang, W., Han, J., Cole, S., et al., 2017, What to expect from dynamical modelling of galactic haloes, MNRAS, 470, 2351
Wang, W., White, S., Mandelbaum, R., et al., 2016, A weak gravitational lensing recalibration of the scaling relations linking the gas properties of dark haloes to their mass, MNRAS, 456, 2301
Wang, W., Han, J., Cooper, A.Pl., et al., 2015, Estimating the dark matter halo mass of our Milky Way using dynamical tracers, MNRAS, 453, 377
Lowing, B., Wang, W., Cooper, A.P., et al., 2015, Creating mock catalogues of stellar haloes from cosmological simulations, MNRAS, 446, 2274
Cautun, M., Wang, W., Frenk, C.S., et al., 2015, A new spin on discs of satellite galaxies, MNRAS, 449, 2576
Wang, W., Sales, L.V., Henriques, B., 2014, Satellite abundances around bright isolated galaxies - II. Radial distribution and environmental effects, MNRAS, 442, 1363
Wang, W., White, S., 2012, Satellite abundances around bright isolated galaxies, MNRAS, 424, 2574
Wang, W., Jing, Y.P., Li, C., et al., 2011, Galaxy Clustering and Projected Density Profiles as Traced by Satellites in Photometric Surveys: Methodology and Luminosity Dependence, ApJ, 734, 88