6 citations · 6 across the 1 of their papers we have counts for
9 papers
A cautionary tale in fitting galaxy rotation curves with Bayesian techniques: does Newton's constant vary from galaxy to galaxy?
Pengfei Li, Federico Lelli, Stacy McGaugh +2
The application of Bayesian techniques to astronomical data is generally non-trivial because the fitting parameters can be strongly degenerated and the formal uncertainties are the…
Mass-Velocity Dispersion Relation in HIFLUGCS Galaxy Clusters
Yong Tian, Po-Chieh Yu, Pengfei Li +2
We investigate the mass-velocity dispersion relation (MVDR) in 29 galaxy clusters in the HIghest X-ray FLUx Galaxy Cluster Sample (HIFLUGCS). We measure the spatially resolved, lin…
Testing the Strong Equivalence Principle: Detection of the External Field Effect in Rotationally Supported Galaxies
Kyu-Hyun Chae, Federico Lelli, Harry Desmond +3
The strong equivalence principle (SEP) distinguishes General Relativity from other viable theories of gravity. The SEP demands that the internal dynamics of a self-gravitating syst…
Characteristic mass in galaxy quenching: environmental versus internal effects
Pengfei Li, Huiyuan Wang, H. J. Mo +2
A clear transition feature of galaxy quenching is identified in the multi-parameter space of stellar mass (), bulge to total mass ratio (), halo mass (…
A comprehensive catalog of dark matter halo models for SPARC galaxies
Pengfei Li, Federico Lelli, Stacy McGaugh +1
We present rotation curve fits to 175 late-type galaxies from the Spitzer Photometry & Accurate Rotation Curves (SPARC) database using seven dark matter (DM) halo profiles: pseudo-…
The halo mass function of late-type galaxies from HI kinematics
Pengfei Li, Federico Lelli, Stacy McGaugh +3
We present an empirical method to measure the halo mass function (HMF) of galaxies. We determine the relation between the \hi\ line-width from single-dish observations and the dark…