搜索结果: 1-15 共查到“空间天文学 F-GAMMA”相关记录39条 . 查询时间(0.046 秒)
Highly-detailed radio-telescope images have pinpointed the locations where a stellar explosion called a nova emitted gamma rays, the most energetic form of electromagnetic waves. The discovery reveale...
GRIPS and the Perspective of Next-generation Gamma-ray Surveys
GRIPS Perspective Next-generation Gamma-ray Surveys
2011/10/19
GRIPS is one example of next generation telescopes proposed for astronomy the energy range between hard X-ray mirror instruments such as NuStar and the Fermi telescope. The Compton telescope principle...
MAXI GSC monitoring of the Crab nebula and pulsar during the GeV gamma-ray flare in September 2010
stars: neutron — stars: pulsars: individual (Crab) — X-rays: indi- vidual
2011/10/12
We report on the MAXI GSC X-ray monitoring of the Crab nebula and pulsar during the GeV gamma-ray flare for the period of 2010 September 18-24 (MJD 55457-55463) detected by AGILE and Fermi-LAT. There ...
Identification of gamma-ray emission from 3C345 and NRAO512
Galaxies: active - quasars: individual (3C 345, NRAO512, B3 1640+396) - Gamma rays: galaxies
2011/10/9
For more than 15 years, since the days of the Energetic Gamma-Ray Experiment Telescope (EGRET) on board the Compton Gamma-Ray Observatory (CGRO; 1991-2000), it has remained an open question why the pr...
Extragalactic Background Light and Gamma-Ray Attenuation
Luminosity density, galaxy spectral energy evolution, extragalactic background light, semi-analytic models of the evolving galaxy population, gamma ray attenuation
2011/10/8
Data from (non-) attenuation of gamma rays from active galactic nuclei (AGN) and gamma ray bursts (GRBs) give upper limits on the extragalactic background light (EBL) from the UV to the mid-IR that ar...
X-ray flare candidates in short gamma-ray bursts
gamma-ray: bursts – radiation mechanism: non-thermal –X-rays
2011/9/30
We present the first systematic study of X-ray flare candidates in short gamma-ray bursts (SGRBs) exploiting the large 6-year Swift database with the aim to constrain the physical nature of such fluct...
Fermi Large Area Telescope Observations of the Active Galaxy 4C +55.17: Steady, Hard Gamma-Ray Emission and its Implications
Steady Hard Gamma-Ray Emission Implications
2011/9/29
We report Fermi/LAT observations and broad-band spectral modeling of the radio-loud active galaxy 4C +55.17 (z=0.896), formally classified as a flat-spectrum radio quasar. Using 19 months of all-sky s...
Last Moments in the Life of a Compact Binary System：Gravitational Waves, Gamma-Ray Bursts and Magnetar Formation
Compact Binary System Gamma-Ray Bursts Gravitational Waves Magnetar Formation
2009/7/1
Last Moments in the Life of a Compact Binary System：Gravitational Waves, Gamma-Ray Bursts and Magnetar Formation。
Supernovae and Gamma Ray Bursts。
Relativistic Outflows in Gamma-Ray Bursts。
Supernovae and Gamma-ray Bursts。
Hadronic gamma-ray production in microquasars with equatorial winds
gamma-ray equatorial winds Hadronic
2009/6/25
Hadronic gamma-ray production in microquasars with equatorial winds。
Long {term evolution of (short) gamma-ray Burst central engines
gamma-ray Burst central engines
2009/6/17
Long {term evolution of (short) gamma-ray Burst central engines。
The study of gamma-ray bursts and their host galaxies in the GTC era
gamma-ray bursts host galaxies GTC era
2009/6/12
The study of gamma-ray bursts and their host galaxies in the GTC era。
A Possible Conection Between Magnetars and Gamma-Ray Bursts。