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.
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Kinematically cold populations at large radii in the draco and ursa minor dwarf spheroidal galaxies
TL;DR: In this article, projected velocity dispersion profiles for the Draco and Ursa Minor (UMi) dwarf spheroidal galaxies based on 207 and 162 discrete stellar velocities, respectively, were presented.
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The Hercules-Aquila Cloud
Vasily Belokurov,Nick Evans,Eric F. Bell,Mike Irwin,P. C. Hewett,Sergey E. Koposov,C. M. Rockosi,Gerard Gilmore,Daniel B. Zucker,Michael Fellhauer,Mark I. Wilkinson,D. M. Bramich,S. Vidrih,Hans-Walter Rix,Timothy C. Beers,Donald P. Schneider,J. C. Barentine,Howard Brewington,J. Brinkmann,M. Harvanek,Jurek Krzesinski,Dan Long,Kaike Pan,Stephanie A. Snedden,O. Malanushenko,Viktor Malanushenko +25 more
TL;DR: In this paper, the authors present evidence for a substantial overdensity of stars in the direction of the constellations of Hercules and Aquila, which is a new structural component of the Galaxy that passes through the disk.
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Evidence for an accretion origin for the outer halo globular cluster system of M31
Dougal Mackey,Avon Huxor,Annette M. N. Ferguson,Mike Irwin,Nial R. Tanvir,Alan W. McConnachie,Rodrigo A. Ibata,Scott Chapman,Geraint F. Lewis +8 more
TL;DR: In this paper, the authors used a sample of newly-discovered globular clusters from the Pan-Andromeda Archaeological Survey (PAndAS) in combination with previously-catalogued objects to map the spatial distribution of Globular clusters in the M31 halo.
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A Minor-Axis Surface Brightness Profile for M31
TL;DR: In this paper, the surface brightness profile of M31 along the southeast minor axis has been mapped using a single data set using the Isaac Newton Telescope Wide-Field Camera (WFC) survey.
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Nucleosynthesis and the inhomogeneous chemical evolution of the carina dwarf galaxy
Kim A. Venn,Matthew Shetrone,Mike Irwin,Vanessa Hill,Vanessa Hill,Pascale Jablonka,Pascale Jablonka,Eline Tolstoy,Bertrand Lemasle,Mike Divell,Else Starkenburg,B. Letarte,Charles S. Baldner,Giuseppina Battaglia,Amina Helmi,Andreas Kaufer,Francesca Primas +16 more
TL;DR: In this article, the detailed abundances of 23 chemical elements in nine bright red giant branch stars in the Carina dwarf spheroidal galaxy are presented based on high-resolution spectra gathered at the Very Large Telescope (VLT) and Magellan telescopes.