Search Results - "Johnson, A.S."
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In-flight measurement of the absolute energy scale of the Fermi Large Area Telescope
Published in Astroparticle physics (01-01-2012)“…► We calculate the geomagnetic cutoff in the cosmic ray electron-plus-positron spectrum via particle trajectory tracing code. ► Compare the traced cutoff value…”
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Environmental exposure and leptospirosis, Peru
Published in Emerging infectious diseases (01-06-2004)“…Human infection by leptospires has highly variable clinical manifestations, which range from subclinical infection to fulminant disease. We conducted a…”
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Maf1 is a novel target of PTEN and PI3K signaling that negatively regulates oncogenesis and lipid metabolism
Published in PLoS genetics (01-12-2014)“…Maf1 was initially identified as a transcriptional repressor of RNA pol III-transcribed genes, yet little is known about its other potential target genes or…”
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4
Temperature regime and carbon dioxide enrichment alter cotton boll development and fiber properties
Published in Agronomy journal (01-09-1999)“…Temperature and atmospheric carbon dioxide concentration [CO(2)] affect cotton (Gossypium hirsutum L.) growth and development, but the interaction of these two…”
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Enhanced RNA Polymerase III-dependent Transcription Is Required for Oncogenic Transformation
Published in The Journal of biological chemistry (11-07-2008)“…RNA polymerase (pol) III transcription, responsible for the synthesis of various stable RNAs, including 5 S rRNAs and tRNAs, is regulated by oncogenic proteins…”
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The Fermi Galactic Center GeV Excess and Implications for Dark Matter
Published in The Astrophysical journal (01-05-2017)“…The region around the Galactic Center (GC) is now well established to be brighter at energies of a few GeV than what is expected from conventional models of…”
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THE THIRD CATALOG OF ACTIVE GALACTIC NUCLEI DETECTED BY THE FERMI LARGE AREA TELESCOPE
Published in The Astrophysical journal (01-09-2015)“…ABSTRACT The third catalog of active galactic nuclei (AGNs) detected by the Fermi-LAT (3LAC) is presented. It is based on the third Fermi-LAT catalog (3FGL) of…”
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THE SPECTRUM OF ISOTROPIC DIFFUSE GAMMA-RAY EMISSION BETWEEN 100 MeV AND 820 GeV
Published in The Astrophysical journal (2015)“…The gamma -ray sky can be decomposed into individually detected sources, diffuse emission attributed to the interactions of Galactic cosmic rays with gas and…”
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FERMI-LAT OBSERVATIONS OF HIGH-ENERGY γ-RAY EMISSION TOWARD THE GALACTIC CENTER
Published in The Astrophysical journal (01-03-2016)“…ABSTRACT The Fermi Large Area Telescope (LAT) has provided the most detailed view to date of the emission toward the Galactic center (GC) in high-energy…”
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THE SPECTRUM AND MORPHOLOGY OF THE FERMI BUBBLES
Published in The Astrophysical journal (20-09-2014)“…The Fermi bubbles are two large structures in the gamma-ray sky extending to 55[degrees] above and below the Galactic center. We analyze 50 months of Fermi…”
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The Second Catalog of Flaring Gamma-Ray Sources from the Fermi All-sky Variability Analysis
Published in The Astrophysical journal (01-09-2017)“…We present the second catalog of flaring gamma-ray sources (2FAV) detected with the Fermi All-sky Variability Analysis (FAVA), a tool that blindly searches for…”
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SEARCH FOR COSMIC-RAY-INDUCED GAMMA-RAY EMISSION IN GALAXY CLUSTERS
Published in The Astrophysical journal (20-05-2014)“…Current theories predict relativistic hadronic particle populations in clusters of galaxies in addition to the already observed relativistic leptons. In these…”
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Measurement of the cosmic ray e+ +e- spectrum from 20 GeV to 1 TeV with the Fermi Large Area Telescope
Published in Physical review letters (08-05-2009)“…Designed as a high-sensitivity gamma-ray observatory, the Fermi Large Area Telescope is also an electron detector with a large acceptance exceeding 2 m;{2} sr…”
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14
Gamma-Ray Flares from the Crab Nebula
Published in Science (American Association for the Advancement of Science) (11-02-2011)“…A young and energetic pulsar powers the well-known Crab Nebula. Here, we describe two separate gamma-ray (photon energy greater than 100 mega-electron volts)…”
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15
The TATA-Binding Protein as a Regulator of Cellular Transformation
Published in Cell cycle (Georgetown, Tex.) (01-09-2003)“…The TATA-binding protein, TBP, is used by all three RNA polymerases and is therefore central to the process of gene expression. TBP associates with several…”
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SEARCH FOR EXTENDED GAMMA-RAY EMISSION FROM THE VIRGO GALAXY CLUSTER WITH FERMI-LAT
Published in The Astrophysical journal (20-10-2015)“…ABSTRACT Galaxy clusters are one of the prime sites to search for dark matter (DM) annihilation signals. Depending on the substructure of the DM halo of a…”
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Precision electroweak measurements on the Z resonance
Published in Physics reports (2006)“…We report on the final electroweak measurements performed with data taken at the Z resonance by the experiments operating at the electron–positron colliders…”
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Gamma-Ray Emission from the Shell of Supernova Remnant W44 Revealed by the Fermi LAT
Published in Science (American Association for the Advancement of Science) (26-02-2010)“…Recent observations of supernova remnants (SNRs) hint that they accelerate cosmic rays to energies close to approximately 10¹⁵ electron volts. However, the…”
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Population of Gamma-Ray Millisecond Pulsars Seen with the Fermi Large Area Telescope
Published in Science (American Association for the Advancement of Science) (14-08-2009)“…Pulsars are born with subsecond spin periods and slow by electromagnetic braking for several tens of millions of years, when detectable radiation ceases. A…”
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GAMMA-RAY FLARING ACTIVITY FROM THE GRAVITATIONALLY LENSED BLAZAR PKS 1830–211 OBSERVED BY Fermi LAT
Published in The Astrophysical journal (01-02-2015)“…The Large Area Telescope (LAT) on board the Fermi Gamma-ray Space Telescope routinely detects the MeV-peaked flat-spectrum radio quasar PKS 1830-211 (z =…”
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