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
Deep Wide-Field Imaging down to the oldest Main Sequence Turnoffs in the Sculptor dwarf spheroidal galaxy
T. J. L. de Boer,E. Tolstoy,A. Saha,K. A. G. Olsen,Mike Irwin,Giuseppina Battaglia,V. Hill,Matthew Shetrone,Giuliana Fiorentino,Andrew A. Cole +9 more
TL;DR: In this paper, a wide field photometry of resolved stars in the nearby Sculptor dwarf spheroidal galaxy using CTIO/MOSAIC was presented, going down to the oldest Main Sequence Turn-Off.
Journal ArticleDOI
AGB stars as tracers of metallicity and mean age across M 33
M. R. L. Cioni,M. R. L. Cioni,Mike Irwin,Annette M. N. Ferguson,Alan W. McConnachie,Blair C. Conn,Avon Huxor,Avon Huxor,Rodrigo A. Ibata,Geraint F. Lewis,Nial R. Tanvir +10 more
TL;DR: In this paper, the authors used both C-type and M-type AGB stars to determine spatial variations in metallicity and mean age across the galaxy, showing that the outer galaxy disc/halo is metal poorer than the nuclear region and metal-rich clumps in the inner galaxy change location with time.
Book ChapterDOI
Resolving the stellar outskirts of m31 and m33
Annette M. N. Ferguson,Mike Irwin,Scott Chapman,Rodrigo A. Ibata,Geraint F. Lewis,Nial R. Tanvir +5 more
TL;DR: In this article, the authors use extremely wide-area star counts to quantitatively address the large-scale structure and stellar content of external galaxies at very faint light levels, and highlight here some results from their imaging and spectroscopic surveys of M31 and M33.
Journal ArticleDOI
The outer halo of the nearest giant elliptical: A VLT/VIMOS survey of the resolved stellar populations in Centaurus A to 85 kpc
Denija Crnojević,Annette M. N. Ferguson,Mike Irwin,Edouard J. Bernard,Nobuo Arimoto,Nobuo Arimoto,Pascale Jablonka,Pascale Jablonka,Chiaki Kobayashi,Chiaki Kobayashi +9 more
TL;DR: In this paper, the first survey of resolved stellar populations in the remote outer halo of Centaurus A (D = 3.8 Mpc) was conducted using the VIMOS/Very Large Telescope (VLT) optical camera.
Journal ArticleDOI
Surface reflectance properties of distant Solar system bodies
TL;DR: In this article, optical and near-IR photometry of the few brightest KBOs and Centaurs shows a diversity from neutral to extremely red colours, and no compelling evidence for a correlation of colours with orbital zones, and consequently no clear mechanism to explain this diversity in terms of the irradiation mantle model.