635 citations · 4.5k across the 47 of their papers we have counts for
7 papers · 1 filter
Simulating the "hidden giant" in cold and self-interacting dark matter models
Omid Sameie, Sukanya Chakrabarti, Hai-Bo Yu +4
We perform a series of controlled N-body simulations to study realizations of the recently discovered Antlia 2 galaxy in cold dark matter (CDM) and self-interacting dark matter (SI…
Self-Interacting Dark Matter and the Origin of Ultra-Diffuse Galaxies NGC1052-DF2 and -DF4
Daneng Yang, Hai-Bo Yu, Haipeng An
Observations of ultra-diffuse galaxies NGC 1052-DF2 and -DF4 show they may contain little dark matter, challenging our understanding of galaxy formation. Using controlled N-body si…
Dark Matter Cores and Cusps in Spiral Galaxies and their Explanations
Manoj Kaplinghat, Tao Ren, Hai-Bo Yu
We compare proposed solutions to the core vs cusp issue of spiral galaxies, which has also been framed as a diversity problem, and demonstrate that the cuspiness of dark matter hal…
Gaussian Processes, Median Statistics, Milky Way Rotation Curves
Hai Yu, Aman Singal, Jacob Peyton +2
We use the Iocco et al. (2015) compilation of 2,780 circular velocity measurements to analyze the Milky Way rotation curve. We find that the error bars for individual measurements…
Dark matter deficient galaxies in the Illustris flat-CDM model structure formation simulation
Hai Yu, Bharat Ratra, Fa-Yin Wang
Surveying dark matter deficient galaxies (those with dark matter mass to stellar mass ratio ) in the Illustris simulation of structure formation in the f…
Dark matter self-interactions from the internal dynamics of dwarf spheroidals
Mauro Valli, Hai-Bo Yu
Dwarf spheroidal galaxies provide well-known challenges to the standard cold and collisionless dark matter scenario: The too-big-to-fail problem, namely the mismatch between the ob…