M
Mike Irwin
Researcher at University of Cambridge
Publications - 768
Citations - 89530
Mike Irwin is an academic researcher from University of Cambridge. The author has contributed to research in topics: Galaxy & Milky Way. The author has an hindex of 136, co-authored 755 publications receiving 83262 citations. Previous affiliations of Mike Irwin include University of New South Wales & Lawrence Berkeley National Laboratory.
Papers
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Journal ArticleDOI
The absolute proper motion and Galactic orbit of M3
TL;DR: In this paper, Schmidt plates and an automatic measuring machine were used to determine the proper motions of the Galactic halo globular clusters and the nearby Galactic dwarf spheroidal satellites.
Journal ArticleDOI
The internal kinematics of dwarf spheroidal galaxies
Mark I. Wilkinson,Jan T. Kleyna,Nick Evans,Gerry Gilmore,Justin I. Read,Andreas Koch,Eva K. Grebel,Mike Irwin +7 more
TL;DR: In this paper, the status of kinematic observations in Local Group dwarf spheroidal galaxies (dSphs) is reviewed and some general features of dSph dark matter haloes based on simple mass models are presented.
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The Andromeda Stream
Geraint F. Lewis,Rodrigo A. Ibata,Scott Chapman,Annette M. N. Ferguson,A. W. McConnachie,Mike Irwin,Nial R. Tanvir +6 more
TL;DR: The existence of a stream of tidally stripped stars from the Sagittarius dwarf galaxy demonstrates that the Milky Way is still in the process of accreting mass as mentioned in this paper, revealing that it too is cannibalising a small companion.
Journal ArticleDOI
The Sagittarius Streams in the Southern Galactic Hemisphere
Sergey E. Koposov,Sergey E. Koposov,Vasily Belokurov,Nick Evans,G. F. Gilmore,Mark Gieles,Mike Irwin,Geraint F. Lewis,Geraint F. Lewis,M. Niederste-Ostholt,Jorge Peñarrubia,Jorge Peñarrubia,Martin C. Smith,Martin C. Smith,Dmitry Bizyaev,Dmitry Bizyaev,Elena Malanushenko,Viktor Malanushenko,Donald P. Schneider,R. F. G. Wyse +19 more
TL;DR: In this article, the structure of the Sagittarius stream in the Southern Galactic hemisphere is analyzed with the Sloan Digital Sky Survey Data Release 8 (SDSD 8) using both photometric and spectroscopic data, and it is shown that the blue straggler population belongs mainly to Sagittaris and the blue horizontal branch stars belong mainly to the Cetus stream in this confused location in the halo.
Journal ArticleDOI
Major substructure in the M31 Outer Halo: the East Cloud
B. McMonigal,Nicholas F. Bate,Anthony R. Conn,Alasdair Mackey,Geraint F. Lewis,Mike Irwin,Nicolas F. Martin,Nicolas F. Martin,Alan W. McConnachie,Annette M. N. Ferguson,Rodrigo A. Ibata,Avon Huxor +11 more
TL;DR: The first detailed analysis of the East Cloud, a highly disrupted diffuse stellar substructure in the outer halo of M31, was presented in this article, where the authors measured the distance, metallicity and brightness of the cloud.