M
Mark Pratt
Researcher at Illumina
Publications - 88
Citations - 4166
Mark Pratt is an academic researcher from Illumina. The author has contributed to research in topics: Gravitational microlensing & Stars. The author has an hindex of 34, co-authored 88 publications receiving 4019 citations. Previous affiliations of Mark Pratt include Life Technologies & European Southern Observatory.
Papers
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Journal ArticleDOI
The MACHO Project: Microlensing Results from 5.7 Years of LMC Observations
Charles Alcock,R. A. Allsman,David R. Alves,T. S. Axelrod,A. C. Becker,David P. Bennett,K. H. Cook,Neal Dalal,Andrew J. Drake,Kenneth C. Freeman,Marla Geha,Kim Griest,Matthew J. Lehner,S. L. Marshall,Dante Minniti,C. A. Nelson,Bruce A. Peterson,P. Popowski,Mark Pratt,Peter J. Quinn,Christopher W. Stubbs,William J. Sutherland,A. B. Tomaney,T. Vandehei,D. L. Welch +24 more
TL;DR: In this article, an analysis of 5.7 years of photometry on 11.9 million stars in the Large Magellanic Cloud (LMC) reveals 13 - 17 microlensing events.
Journal ArticleDOI
The MACHO Project LMC Microlensing Results from the First Two Years and the Nature of the Galactic Dark Halo
Charles Alcock,R. A. Allsman,David R. Alves,T. S. Axelrod,A. C. Becker,David P. Bennett,K. H. Cook,Kenneth C. Freeman,Kim Griest,J. A. Guern,Matthew J. Lehner,S. L. Marshall,Bruce A. Peterson,Mark Pratt,Peter J. Quinn,A. W. Rodgers,Christopher W. Stubbs,William J. Sutherland,D. L. Welch +18 more
TL;DR: In this article, the authors used the first 2.1 years of photometry of 8.5 million stars in the LMC to estimate the total microlensing optical depth towards the Large Magellanic Cloud (LMC) from events with $2 < that < 200$ days.
Journal ArticleDOI
MACHO Project Limits on Black Hole Dark Matter in the 1-30 Solar Mass Range
Charles Alcock,R. A. Allsman,David R. Alves,T. S. Axelrod,A. C. Becker,David P. Bennett,K. H. Cook,Neal Dalal,Andrew J. Drake,Marla Geha,Kim Griest,Matthew J. Lehner,S. L. Marshall,Dante Minniti,C. A. Nelson,Bruce A. Peterson,P. Popowski,Mark Pratt,Peter J. Quinn,Christopher W. Stubbs,William J. Sutherland,A. B. Tomaney,T. Vandehei,D. L. Welch +23 more
TL;DR: In this article, a search for long duration microlensing events towards the Large Magellanic Cloud was conducted, and the authors found none, and therefore put limits on the contribution of high mass objects to the Galactic dark matter.
Journal ArticleDOI
The MACHO project: Microlensing Optical Depth towards the Galactic Bulge from Difference Image Analysis
Charles Alcock,R. A. Allsman,David R. Alves,T. S. Axelrod,A. C. Becker,David P. Bennett,K. H. Cook,Andrew J. Drake,Kenneth C. Freeman,Marla Geha,Kim Griest,Matthew J. Lehner,S. L. Marshall,Dante Minniti,C. A. Nelson,Bruce A. Peterson,P. Popowski,Mark Pratt,Peter J. Quinn,Christopher W. Stubbs,William J. Sutherland,A. B. Tomaney,T. Vandehei,D. L. Welch +23 more
TL;DR: In this paper, the authors presented the microlensing optical depth towards the Galactic bulge based on the detection of 99 events found in our Difference Image Analysis (DIA) survey.
Patent
Systems, methods, and apparatuses to image a sample for biological or chemical analysis
Mark T. Reed,Erik Williamson,Bryan Crane,Patrick Leung,Dale Buermann,Alexander P. Kindwall,Frederick Erie,Mark Pratt,Jason Harris,Andrew James Carson,Hong Stanley S,Jason Bryant,Mark Wang,Drew Verkade +13 more
TL;DR: In this article, a fluidic device holder is configured to orient an inertial device against a set of reference surfaces along an XY-plane, and an alignment assembly has an actuator and a movable locator arm that is operatively coupled to the actuator.