Search Results - "Borgland, A.W"
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Measurement of separate cosmic-ray electron and positron spectra with the fermi large area telescope
Published in Physical review letters (05-01-2012)“…We measured separate cosmic-ray electron and positron spectra with the Fermi Large Area Telescope. Because the instrument does not have an onboard magnet, we…”
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Constraining dark matter models from a combined analysis of Milky Way satellites with the Fermi Large Area Telescope
Published in Physical review letters (09-12-2011)“…Satellite galaxies of the Milky Way are among the most promising targets for dark matter searches in gamma rays. We present a search for dark matter consisting…”
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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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The BaBar detector: Upgrades, operation and performance
Published in Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment (21-11-2013)“…The BaBar detector operated successfully at the PEP-II asymmetric e+e− collider at the SLAC National Accelerator Laboratory from 1999 to 2008. This report…”
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A limit on the variation of the speed of light arising from quantum gravity effects
Published in Nature (London) (19-11-2009)“…A cornerstone of Einstein's special relativity is Lorentz invariance-the postulate that all observers measure exactly the same speed of light in vacuum,…”
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Spectrum of the isotropic diffuse gamma-ray emission derived from first-year Fermi Large Area Telescope data
Published in Physical review letters (12-03-2010)“…We report on the first Fermi Large Area Telescope (LAT) measurements of the so-called "extragalactic" diffuse gamma-ray emission (EGB). This component of the…”
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Fermi Observations of GRB 090902B: A Distinct Spectral Component in the Prompt and Delayed Emission
Published in The Astrophysical journal (20-11-2009)“…Here, we report on the observation of the bright, long gamma-ray burst (GRB), GRB 090902B, by the Gamma-ray Burst Monitor (GBM) and Large Area Telescope (LAT)…”
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Fermi Large Area Telescope Bright Gamma-ray Source List
Published in The Astrophysical journal (01-07-2009)“…Following its launch in 2008 June, the Fermi Gamma-ray Space Telescope (Fermi) began a sky survey in August. The Large Area Telescope (LAT) on Fermi in three…”
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Observations of Milky Way Dwarf Spheroidal Galaxies with the Fermi-Large Area Telescope Detector and Constraints on Dark Matter Models
Published in The Astrophysical journal (20-03-2010)“…We report on the observations of 14 dwarf spheroidal galaxies (dSphs) with the Fermi Gamma-Ray Space Telescope taken during the first 11 months of survey mode…”
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Fermi LAT Discovery of Extended Gamma-Ray Emission in the Direction of Supernova Remnant W51C
Published in The Astrophysical journal (20-11-2009)“…In this paper, the discovery of bright gamma-ray emission coincident with supernova remnant (SNR) W51C is reported using the Large Area Telescope (LAT) onboard…”
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Anisotropies in the diffuse gamma-ray background measured by the Fermi LAT
Published in Physical review. D, Particles, fields, gravitation, and cosmology (24-04-2012)“…The contribution of unresolved sources to the diffuse gamma-ray background could induce anisotropies in this emission on small angular scales. We analyze the…”
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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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Fermi Large Area Telescope Gamma-Ray Detection of the Radio Galaxy M87
Published in The Astrophysical journal (10-12-2009)“…We report the Fermi Large Area Telescope (LAT) discovery of high-energy (MeV/GeV) Delta *g-ray emission positionally consistent with the center of the radio…”
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Fermi Discovery of Gamma-ray Emission from NGC 1275
Published in The Astrophysical journal (01-07-2009)“…We report the discovery of high-energy (E > 100 MeV) gamma -ray emission from NGC 1275, a giant elliptical galaxy lying at the center of the Perseus cluster of…”
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Fermi large area telescope measurements of the diffuse gamma-ray emission at intermediate galactic latitudes
Published in Physical review letters (18-12-2009)“…The diffuse galactic gamma-ray emission is produced by cosmic rays (CRs) interacting with the interstellar gas and radiation field. Measurements by the…”
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DETERMINATION OF THE POINT-SPREAD FUNCTION FOR THE FERMI LARGE AREA TELESCOPE FROM ON-ORBIT DATA AND LIMITS ON PAIR HALOS OF ACTIVE GALACTIC NUCLEI
Published in The Astrophysical journal (01-03-2013)“…The Large Area Telescope (LAT) on the Fermi Gamma-ray Space Telescope is a pair-conversion telescope designed to detect photons with energies from…”
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Fermi/LAT observations of LS 5039
Published in The Astrophysical journal (20-11-2009)“…The first results from observations of the high-mass X-ray binary LS 5039 using the Fermi Gamma-ray Space Telescope data between 2008 August and 2009 June are…”
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Fermi Observations of TeV-Selected Active Galactic Nuclei
Published in The Astrophysical journal (20-12-2009)“…We report on observations of TeV-selected active galactic nuclei (AGNs) made during the first 5.5 months of observations with the Large Area Telescope (LAT)…”
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Fermi LAT Observation of Diffuse Gamma Rays Produced Through Interactions Between Local Interstellar Matter and High-energy Cosmic Rays
Published in The Astrophysical journal (01-10-2009)“…Observations by the Large Area Telescope (LAT) on the Fermi mission of diffuse Delta *g-rays in a mid-latitude region in the third quadrant (Galactic longitude…”
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