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  • The Signatures of Self-interacting Dark Matter and Subhalo Disruption on Cluster Substructure 
    Bhattacharyya, Souradip; ADHIKARI, SUSMITA; BANERJEE, ARKA; More, Surhud; Kumar, Amit; Nadler, Ethan O.; Chatterjee, Suchetana (IOP Publishing, 2022-06)
    The abundance, distribution, and inner structure of satellites of galaxy clusters can be sensitive probes of the properties of dark matter. We run 30 cosmological zoom-in simulations with self-interacting dark matter (SIDM), ...
  • Insights into the origin of halo mass profiles from machine learning 
    Lucie-Smith, Luisa; ADHIKARI, SUSMITA; Wechsler, Risa H (Oxford University Press, 2022-09)
    The mass distribution of dark matter haloes is the result of the hierarchical growth of initial density perturbations through mass accretion and mergers. We use an interpretable machine-learning framework to provide physical ...
  • Observational Inference on the Delay Time Distribution of Short Gamma-Ray Bursts 
    Zevin, Michael; Nugent, Anya E.; ADHIKARI, SUSMITA; Fong, Wen-fai; Holz, Daniel E.; Kelley, Luke Zoltan (American Astronomical Society, 2022-11)
    The delay time distribution of neutron star mergers provides critical insights into binary evolution processes and the merger rate evolution of compact object binaries. However, current observational constraints on this ...
  • Symphony: Cosmological Zoom-in Simulation Suites over Four Decades of Host Halo Mass 
    Nadler, Ethan O.; BANERJEE, ARKA et al.; ADHIKARI, SUSMITA (IOP Publishing, 2023-03)
    We present Symphony, a compilation of 262 cosmological, cold-dark-matter-only zoom-in simulations spanning four decades of host halo mass, from 1011–1015 M⊙. This compilation includes three existing simulation suites at ...
  • A better way to define dark matter haloes 
    Garcia, Rafael; Salazar, Edgar; Rozo, Eduardo; ADHIKARI, SUSMITA; Aung, Han; Diemer, Benedikt; Nagai, Daisuke; Wolfe, Brandon (Oxford University Press, 2023-05)
    Dark matter haloes have long been recognized as one of the fundamental building blocks of large-scale structure formation models. Despite their importance – or perhaps because of it! – halo definitions continue to evolve ...
  • Accurate model of the projected velocity distribution of galaxies in dark matter haloes 
    Aung, Han; Nagai, Daisuke; Rozo, Eduardo; Wolfe, Brandon; ADHIKARI, SUSMITA (Oxford University Press, 2023-05)
    We present a per cent-level accurate model of the line-of-sight velocity distribution of galaxies around dark matter haloes as a function of projected radius and halo mass. The model is developed and tested using synthetic ...
  • Buzzard to Cardinal: Improved Mock Catalogs for Large Galaxy Surveys 
    To, Chun-Hao; DeRose, Joseph; Wechsler, Risa H.; Rykoff,Eli; Wu, Hao-Yi; ADHIKARI, SUSMITA; Krause, Elisabeth; Rozo, Eduardo; Weinberg, David H (IOP Publishing, 2024-01)
    We present the Cardinal mock galaxy catalogs, a new version of the Buzzard simulation that has been updated to support ongoing and future cosmological surveys, including the Dark Energy Survey (DES), DESI, and LSST. These ...
  • The impact of halo concentration on the Sunyaev Zel'dovich effect signal from massive galaxy clusters 
    Baxter, Eric J.; Pandey, Shivam; ADHIKARI, SUSMITA; Cui, Weiguang; Shin, Tae-hyeon; Li, Qingyang; Rasia, Elena (Oxford University Press, 2024-01)
    The Sunyaev Zel’dovich (SZ) effect is sensitive to the pressure of ionized gas inside galaxy clusters, which is in turn controlled largely by the gravitational potential of the cluster. Changing the concentration parameter ...

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