J
Justin I. Read
Researcher at University of Surrey
Publications - 164
Citations - 15158
Justin I. Read is an academic researcher from University of Surrey. The author has contributed to research in topics: Galaxy & Dark matter. The author has an hindex of 56, co-authored 164 publications receiving 13448 citations. Previous affiliations of Justin I. Read include University of Leicester & University of Zurich.
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Journal ArticleDOI
Andromeda XXI - a dwarf galaxy in a low-density dark matter halo
Michelle L. M. Collins,Justin I. Read,Rodrigo A. Ibata,R. Michael Rich,Nicolas F. Martin,Jorge Peñarrubia,Scott Chapman,Erik Tollerud,Daniel R. Weisz +8 more
TL;DR: Andromeda XXI (And XXI) has been proposed as a dwarf spheroidal galaxy with a central dark matter density that is lower than expected in the Standard Lambda$ Cold Dark Matter ($Lambda$CDM) cosmology as discussed by the authors.
Journal ArticleDOI
Breaking beta: a comparison of mass modelling methods for spherical systems
Justin I. Read,Gary A. Mamon,Eugene Vasiliev,Eugene Vasiliev,Eugene Vasiliev,Laura L. Watkins,Laura L. Watkins,Laura L. Watkins,Matthew G. Walker,Jorge Peñarrubia,Mark I. Wilkinson,W. Dehnen,W. Dehnen,Payel Das,Payel Das +14 more
TL;DR: In this paper, four different mass modelling methods were applied to a suite of publicly available mock data for spherical stellar systems, focusing on the recovery of the density and velocity anisotropy as a function of radius using either line-of-sight velocity data only, or adding proper motion data.
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The tidal stripping of satellites
TL;DR: In this paper, an improved analytic calculation for the tidal radius of satellites and test their results against N-body simulations were presented. But their results are limited to point mass, power law, and split power law potentials.
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Antlia2's role in driving the ripples in the outer gas disk of the Galaxy
Sukanya Chakrabarti,Philip Chang,Adrian M. Price-Whelan,Justin I. Read,Leo Blitz,Lars Hernquist +5 more
TL;DR: In this article, the Antlia 2 dwarf galaxy was calculated from Gaia data to calculate its orbital distribution in the cosmologically recent past, and it was shown that low pericenters, such as $sim$ 10 kpc, produce disturbances that match the observed outer HI disk perturbations.
Journal ArticleDOI
Formation of the largest galactic cores through binary scouring and gravitational wave recoil
Imran Tariq Nasim,Alessia Gualandris,Justin I. Read,Fabio Antonini,Fabio Antonini,Walter Dehnen,Walter Dehnen,Maxime Delorme,Maxime Delorme +8 more
TL;DR: In this paper, a suite of dry galaxy merger simulations is used to explore three different scenarios for central core formation in massive elliptical galaxies: binary scouring, tidal deposition, and gravitational wave induced recoil.