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 distance to the cool T9 brown dwarf ULAS J003402.77-005206.7
Richard L. Smart,Hugh R. A. Jones,Mario G. Lattanzi,S. K. Leggett,Stephen J. Warren,A. Adamson,Ben Burningham,Mark M. Casali,D. W. Evans,Mike Irwin,D. J. Pinfield +10 more
TL;DR: In this article, the feasibility of determining parallaxes for nearby objects with the wide field camera on the United Kingdom Infrared Telescope (UKIRT) using the UKIRT Infrared Deep Sky Survey as a first epoch was demonstrated.
Journal ArticleDOI
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 paper, the detailed abundances of 23 elements in nine bright RGB stars in the Carina dSph are presented based on high resolution spectra gathered at the VLT and Magellan telescopes.
Journal ArticleDOI
Inside the whale: the structure and dynamics of the isolated Cetus dwarf spheroidal
Geraint F. Lewis,Rodrigo A. Ibata,Scott Chapman,A. W. McConnachie,Mike Irwin,Eline Tolstoy,Nial R. Tanvir +6 more
TL;DR: In this paper, a matched-filter analysis of the INT/WFC imaging of the Cetus dwarf galaxy reveals no evidence for significant tidal debris that could have been torn from the galaxy, bolstering the hypothesis that Cetus has never significantly interacted with either the Milky Way or M31.
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The Periodic Spectroscopic Variability of FU Orionis
TL;DR: In this article, the authors observed the FU Orionis system at higher spectral resolution, by monitoring variations of optical line profiles over 21 nights in 2007 and found periods of 13.48 and 3.6 days in the wind and disc components consistent with the above: this implies variability mechanisms that are stable over at least a decade.
Posted Content
The AGB population of NGC 6822
TL;DR: In this paper, a mean C/M ratio of 0.288 +/- 0.014 has been found, which corresponds to an iron abundance of [Fe/H] =-1.14 +/-0.08 dex with variations in the north and south, as well as at larger galactocentric distances.