M
Michael J. Mortonson
Researcher at Ohio State University
Publications - 25
Citations - 2997
Michael J. Mortonson is an academic researcher from Ohio State University. The author has contributed to research in topics: Cosmic microwave background & Dark energy. The author has an hindex of 19, co-authored 25 publications receiving 2783 citations. Previous affiliations of Michael J. Mortonson include Lowell Observatory & Lawrence Berkeley National Laboratory.
Papers
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Journal ArticleDOI
Observational probes of cosmic acceleration
David H. Weinberg,Michael J. Mortonson,Daniel J. Eisenstein,Daniel J. Eisenstein,Christopher M. Hirata,Adam G. Riess,Eduardo Rozo +6 more
TL;DR: In this article, the authors present extensive forecasts for constraints on the dark energy equation of state and parameterized deviations from General Relativity, achievable with Stage III and Stage IV experimental programs that incorporate supernovae, BAO, weak lensing, and cosmic microwave background data.
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Cluster Mass Functions in the Large and Small Magellanic Clouds: Fading and Size-of-Sample Effects
Deidre A. Hunter,Bruce G. Elmegreen,Trent J. Dupuy,Trent J. Dupuy,Michael J. Mortonson,Michael J. Mortonson +5 more
TL;DR: In this paper, the properties of star clusters in the Large and Small Magellanic Clouds were determined from ground-based CCD images in UBVR passbands, and the initial cluster mass function (ICMF) was determined by fitting the mass and age distributions with cluster population models.
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A joint analysis of Planck and BICEP2 B modes including dust polarization uncertainty
Michael J. Mortonson,Uroš Seljak +1 more
TL;DR: In this article, the authors analyze BICEP2 and Planck data using a model that includes CMB lensing, gravity waves, and polarized dust, and find that the null hypothesis of dust and lensing with $r=0$ gives a lower bound on the tensor-to-scalar ratio.
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Size is everything : universal features of quasar microlensing with extended sources
Michael J. Mortonson,Michael J. Mortonson,Paul L. Schechter,Joachim Wambsganss,Joachim Wambsganss +4 more
TL;DR: In this paper, the authors examined the effect of the shape of the source brightness profile on the magnitude fluctuations of images in quasar lens systems due to microlensing and found that the micro-lensing fluctuations are relatively insensitive to all properties of the models except the half-light radius of the disk.
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Mechanical loss in tantala/silica dielectric mirror coatings
Steven D. Penn,Steven D. Penn,Peter H. Sneddon,Helena Armandula,J. Betzwieser,Gianpietro Cagnoli,Jordan Camp,Jordan Camp,David Crooks,Martin M. Fejer,Andri M. Gretarsson,Gregory M. Harry,J. H. Hough,Scott E. Kittelberger,Michael J. Mortonson,Roger K. Route,Sheila Rowan,Christophoros C. Vassiliou +17 more
TL;DR: In this article, the authors investigated sources of mechanical loss in the Ta2O5/SiO2 coatings, including loss associated with the coating-substrate interface, with coating-layer interfaces and with coating materials.