Search Results - "Meyer, Bradley"

THE INTERMEDIATE NEUTRON-CAPTURE PROCESS AND CARBON-ENHANCED METAL-POOR STARS by Hampel, Melanie, Stancliffe, Richard J., Lugaro, Maria, Meyer, Bradley S.

“…ABSTRACT Carbon-enhanced metal-poor (CEMP) stars in the Galactic Halo display enrichments in heavy elements associated with either the s (slow) or the r…”
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Learning about the Intermediate Neutron-capture Process from Lead Abundances by Hampel, Melanie, Karakas, Amanda I., Stancliffe, Richard J., Meyer, Bradley S., Lugaro, Maria

“…Abstract Lead (Pb) is predominantly produced by the slow neutron-capture process (s process) in asymptotic giant branch (AGB) stars. In contrast to…”
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Presolar Grains as Probes of Supernova Nucleosynthesis by Liu, Nan, Lugaro, Maria, Leitner, Jan, Meyer, Bradley S., Schönbächler, Maria

“…We provide an overview of the isotopic signatures of presolar supernova grains, specifically focusing on 44 Ti-containing grains with robustly inferred…”
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Triggered Star Formation inside the Shell of a Wolf-Rayet Bubble as the Origin of the Solar System by Dwarkadas, Vikram V., Dauphas, Nicolas, Meyer, Bradley, Boyajian, Peter, Bojazi, Michael

“…A critical constraint on solar system formation is the high /27Al abundance ratio of at the time of formation, which was about 17 times higher than the average…”
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A radiogenic heating evolution model for cosmochemically Earth-like exoplanets by Frank, Elizabeth A., Meyer, Bradley S., Mojzsis, Stephen J.

“…•Galactic chemical evolution models predict U and Th content in silicate exoplanet mantles.•Age largely determines a planet’s current radiogenic heating…”
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Iron and Nickel Isotopes in IID and IVB Iron Meteorites: Evidence for Admixture of an SN II Component and Implications for the Initial Abundance of 60Fe by Cook, David L., Meyer, Bradley S., Schönbächler, Maria

“…We measured Fe and Ni isotopes in 13 iron meteorites from magmatic groups IID and IVB. Resolvable deficits (≈−0.14) are observed in ε 60Ni in both groups…”
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Explosive Nucleosynthesis in Core-collapse Type II Supernovae: Insights from New C, N, Si, and Al–Mg Isotopic Compositions of Presolar Grains by Liu, Nan, Alexander, Conel M. O’D., Meyer, Bradley S., Nittler, Larry R., Wang, Jianhua, Stroud, Rhonda M.

“…Abstract We report C, N, Si, and Al–Mg isotope data for 39 presolar X silicon carbide (SiC) and four silicon nitride grains—a group of presolar grains that…”
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From social media to public health surveillance: Word embedding based clustering method for twitter classification by Dai, Xiangfeng, Bikdash, Marwan, Meyer, Bradley

“…Social media provide a low-cost alternative source for public health surveillance and health-related classification plays an important role to identify useful…”
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Stellar sources of the short-lived radionuclides in the early solar system by Huss, Gary R., Meyer, Bradley S., Srinivasan, Gopalan, Goswami, Jitendra N., Sahijpal, Sandeep

“…We discuss the possible stellar sources of short-lived radionuclides (SLRs) known to have been present in the early solar system ( 26Al, 36Cl, 41Ca, 53Mn,…”
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NanoSIMS Studies of Small Presolar SiC Grains: New Insights into Supernova Nucleosynthesis, Chemistry, and Dust Formation by Hoppe, Peter, Leitner, Jan, Gröner, Elmar, Marhas, Kuljeet K, Meyer, Bradley S, Amari, Sachiko

“…We have studied more than 2000 presolar silicon carbide (SiC) grains from the Murchison CM2 chondrite in the size range 0.2-0.5 {mu}m for C- and Si-isotopic…”
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Sensitivity of Neutron-Rich Nuclear Isomer Behavior to Uncertainties in Direct Transitions by Misch, G. Wendell, Sprouse, Trevor M., Mumpower, Matthew R., Couture, Aaron J., Fryer, Chris L., Meyer, Bradley S., Sun, Yang

“…Nuclear isomers are populated in the rapid neutron capture process (r process) of nucleosynthesis. The r process may cover a wide range of temperatures,…”
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Common Occurrence of Explosive Hydrogen Burning in Type II Supernovae by Liu, Nan, Stephan, Thomas, Boehnke, Patrick, Nittler, Larry R., Meyer, Bradley S., Alexander, Conel M. O'D., Davis, Andrew M., Trappitsch, Reto, Pellin, Michael J.

“…We report Mo isotopic data for 16 15N-rich presolar SiC grains of type AB (14N/15N < solar, AB1) and their correlated Sr and Ba isotope ratios when available…”
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Sensitivity Study of Type-I X-ray Bursts to Nuclear Reaction Rates by Sultana, Irin, Estradé, Alfredo, Borowiak, Jessica, Elliott, Jacob, Meyer, Bradley S., Schatz, Hendrik

“…Type-I X-ray bursts are frequently occurring thermonuclear runaways on the surface of an accreting neutron star. The different nuclear reactions that empower…”
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The State of the Art in Implementing Machine Learning for Mobile Apps: A Survey by Dai, Xiangfeng, Spasic, Irena, Chapman, Samuel, Meyer, Bradley

“…Mobile applications based on machine learning are reshaping and affecting many aspects of our lives. Implementing machine learning on mobile devices faces…”
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Atomic masses with machine learning for the astrophysical r process by Li, Mengke, Sprouse, Trevor M., Meyer, Bradley S., Mumpower, Matthew R.

“…The astrophysical r process plays a vital role in the production of heavy elements. Modeling of the r process is sensitive to masses and further requires…”
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The Physics of Proto-Neutron Star Winds: Implications for r-Process Nucleosynthesis by Thompson, Todd A, Burrows, Adam, Meyer, Bradley S

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Oxygen Isotopic Composition of the Sun and Mean Oxygen Isotopic Composition of the Protosolar Silicate Dust: Evidence from Refractory Inclusions by Krot, Alexander N, Nagashima, Kazuhide, Ciesla, Fred J, Meyer, Bradley S, Hutcheon, Ian D, Davis, Andrew M, Huss, Gary R, Scott, Edward R. D

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Genetic analysis reveals candidate genes for activity QTL in the blind Mexican tetra, Astyanax mexicanus by Carlson, Brian M, Klingler, Ian B, Meyer, Bradley J, Gross, Joshua B

“…Animal models provide useful tools for exploring the genetic basis of morphological, physiological and behavioral phenotypes. Cave-adapted species are…”
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THREE-DIMENSIONAL SIMULATIONS OF PURE DEFLAGRATION MODELS FOR THERMONUCLEAR SUPERNOVAE by Long, Min, Jordan, George C, van Rossum, Daniel R, Diemer, Benedikt, Graziani, Carlo, Kessler, Richard, Meyer, Bradley, Rich, Paul, Lamb, Don Q

“…We present a systematic study of the pure deflagration model of Type Ia supernovae (SNe Ia) using three-dimensional, high-resolution, full-star hydrodynamical…”
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Multiple Generations of Refractory Inclusions in the Metal-Rich Carbonaceous Chondrites Acfer 182/214 and Isheyevo by Krot, Alexander N, Nagashima, Kazuhide, Bizzarro, Martin, Huss, Gary R, Davis, Andrew M, Meyer, Bradley S, Ulyanov, Alexander A

“…Ca, Al-rich inclusions (CAIs) are believed to have formed by evaporation, condensation, and melting of the pre-existing solids during the earliest stages of…”
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