搜索结果: 76-90 共查到“理学 Fermi”相关记录117条 . 查询时间(0.045 秒)
Neutrino emission of Fermi supernova remnants
High Energy Astrophysical Phenomena (astro-ph.HE) High Energy Physics - Phenomenology (hep-ph)
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2010/12/28
The Fermi $\gamma$-ray space telescope reported the observation of several Galactic supernova remnants recently, with the $\gamma$-ray spectra well described by hadronic $pp$ collisions. The possible ...
Searching for Needles in Haystacks - Using the Fermi/GBM to find GRB gamma-rays with the Fermi/LAT Detector
High Energy Astrophysical Phenomena (astro-ph.HE)
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2010/12/27
From the launch of the Fermi Gamma-ray Space Telescope to July 9, 2010, the Gamma-ray Burst Monitor (GBM) has detected 497 probable GRB events. Twenty-two of these satisfy the simultaneous requirement...
Searching for Needles in Haystacks - Looking for GRB gamma-rays with the Fermi/LAT Detector
High Energy Astrophysical Phenomena (astro-ph.HE)
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2010/12/27
Since the launch of the Fermi Gamma-ray Space Telescope on June 11, 2008, 55 gamma-ray bursts (GRBs) have been observed at coordinates that fall within 66^\circ of the Fermi Large Area Telescope (LAT)...
Implications of the Cosmic Ray Electron Spectrum and Anisotropy measured with Fermi-LAT
High Energy Astrophysical Phenomena (astro-ph.HE)
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2010/12/23
The Fermi Large Area Telescope (LAT) collaboration recently released the updated results of the measurement of the cosmic ray electron (CRE) spectrum and published its first constraints on the CRE ani...
Asphericity in the Fermi Surface of d and f-Shell Metals
Pseudopotential Asphericity in the Fermi Surface exchange and correlation effects
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2010/4/8
Recently proposed pseudopotential has been used to calculate asphericity in the Fermi surface of d and f-shell metals along the three symmetry directions [100], [110] and [111]. The parameter of the p...
Thermostatistics in the neighborhood of the $\pi$-mode solution for the Fermi-Pasta-Ulam $\beta$ system: from weak to strong chaos
Thermostatistics Fermi-Pasta-Ulam $\beta$ system $\pi$-mode solution
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2010/4/6
We consider a $\pi$-mode solution of the Fermi-Pasta-Ulam $\beta$ system. By perturbing it, we study the system as a function of the energy density from a regime where the solution is stable to a regi...
Can past gamma-ray bursts explain both INTEGRAL and PAMELA/Fermi anomalies simultaneously?
Gamma ray bursts gamma-ray bursts
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2010/3/9
Gamma-ray bursts (GRB) have been invoked to explain both the 511 keV emission from the galactic bulge and the high-energy positron excess inferred from the PAMELA and Fermi data. While independent exp...
Fermi pins down a colossal accelerator（图）
Fermi a colossal accelerator
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2010/2/23
Matter ejected from a supermassive black hole travels several light years before being accelerated to nearly the speed of light. This is the surprising conclusion of an international team of astronome...
Fermi-LAT observations of GRBs with weak LAT emission
Gamma-Ray Bursts Large Area Telescope Gamma-ray Burst Monitor
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2010/3/9
We present the analysis results of three Gamma-Ray Bursts (GRBs) detected by the Gamma-ray Burst Monitor (GBM) and the Large Area Telescope (LAT) onboard Fermi: the two long GRB 080825C and GRB 090217...
The First Catalog of Active Galactic Nuclei Detected by the Fermi Large Area Telescope
gamma rays observations galaxies active galaxies jets BL Lacertae objects general
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2010/3/9
We present the first catalog of active galactic nuclei (AGN) detected by the LAT, corresponding to 11 months of data collected in scientific operation mode. The First LAT AGN Catalog (1LAC) includes 6...
H I spin temperature in the Fermi-LAT era
H I spin temperature Fermi-LAT era
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2010/3/8
The diffuse high-energy gamma-ray emission of the Milky Way arises from interactions of cosmic-rays (CRs) with interstellar gas and radiation field in the Galaxy. The neutral hydrogen (H I) gas compon...
The simplified stochastic Fermi-Ulam model revisited
simplified Fermi-Ulam model Fokker-Planck equation
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2010/4/1
The description of Fermi acceleration developing in the phase-randomized simplified Fermi-Ulam model (SFUM) can be achieved in terms of a random walk taking place in momentum space. Within this framew...
The Cosmological Evolution of Blazars and the Extragalactic Gamma-Ray Background in the Fermi Era
Cosmological Evolution Blazars Extragalactic Gamma-Ray Background
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2010/3/8
The latest determination of the extragalactic gamma-ray background (EGRB) radiation by Fermi is compared with the theoretical prediction of the blazar component by Inoue & Totani (2009; hereafter IT09...
Asymptotic properties of excited states in the Thomas--Fermi limit
Asymptotic properties excited states Thomas--Fermi limit
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2010/4/8
Excited states are stationary localized solutions of the Gross--Pitaevskii equation with a harmonic potential and a repulsive nonlinear term that have zeros on a real axis. Existence and asymptotic pr...
Fermi Telescope Caps its First Year with a Glimpse of Space-Time
Fermi Telescope First Year Space-Time
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2009/11/4
During its first year of operations, NASA's Fermi Gamma Ray Space Telescope mapped the extreme sky with unprecedented resolution and sensitivity. It captured more than one thousand discrete sources of...