搜索结果: 1-15 共查到“天体物理学 F-GAMMA”相关记录79条 . 查询时间(0.096 秒)
2018年SPIE空间望远镜和仪器：紫外线到伽马射线会议（SPIE Space Telescopes and Instrumentation 2018:Ultraviolet to Gamma Ray）
2018年 SPIE 空间望远镜和仪器：紫外线到伽马射线 会议
2017/11/27
Observation of the hot universe, from 105 K upward, has a vital impact on some of the most fundamental questions in astrophysics today. Hot plasmas, from the sun and stellar coronae to the cores of ga...
2017SPIE EUV，X射线和伽玛射线天文学光学专题会议（Optics for EUV,X-Ray,and Gamma-Ray Astronomy VIII）
2017 SPIE EUV，X射线和伽玛射线天文学光学 专题会议
2017/4/25
2017SPIE EUV，X射线和伽玛射线天文学光学专题会议（Optics for EUV,X-Ray,and Gamma-Ray Astronomy VIII）。
2017SPIE紫外线，X射线和伽玛射线太空仪器专题会议（UV,X-Ray,and Gamma-Ray Space Instrumentation for Astronomy XX）
2017 SPIE 紫外线，X射线和伽玛射线太空仪器 专题会议
2017/4/25
2017SPIE紫外线，X射线和伽玛射线太空仪器专题会议（UV,X-Ray,and Gamma-Ray Space Instrumentation for Astronomy XX）。
Help astronomers find elusive muons disguised as gamma rays
astronomers muons disguised gamma rays
2017/3/30
A new citizen science project, led by astronomers at the University of Minnesota, is asking for help from the public to identify and categorize hundreds of thousands of ring patterns within images pro...
HAWC Gamma-Ray Observatory Reveals New Look at the Very-high-energy Sky
HAWC Gamma-Ray Observatory Very-high-energy Sky
2016/4/25
The United States and Mexico constructed the High Altitude Water Cherenkov (HAWC) Gamma-Ray Observatory to observe some of the most energetic phenomena in the known universe—the aftermath wh...
Galactic center's gamma rays unlikely to originate from dark matter,evidence shows
Galactic center gamma rays dark matter
2016/2/23
Bursts of gamma rays from the center of our galaxy are not likely to be signals of dark matter but rather other astrophysical phenomena such as fast-rotating stars called millisecond pulsars, accordin...
The Gamma-Ray Blazar PKS 0208-512, a Multi-Wavelength Investigation
Gamma-Ray Blazar PKS 0208-512 Multi-Wavelength Investigation
2012/2/23
The gamma-ray blazar PKS 0208-512 has shown strong periods of flaring, at all frequencies from radio to gamma-ray. This has led to its inclusion in the TANAMI project, which tracks the jets of souther...
Gamma-Ray and Parsec-Scale Jet Properties of a Complete Sample of Blazars From the MOJAVE Program
Gamma-Ray Parsec-Scale Jet Properties Complete Sample Blazars From MOJAVE Program
2011/10/19
We investigate the Fermi LAT gamma-ray and 15 GHz VLBA radio properties of a joint gamma-ray- and radio-selected sample of AGNs obtained during the first 11 months of the Fermi mission (2008 Aug 4 - 2...
Spectral-Temporal Simulations of Internal Dissipation Models of Gamma-Ray Bursts
Spectral-Temporal Simulations Internal Dissipation Models Gamma-Ray Bursts
2011/10/19
We present calculations of the time evolution of the prompt spectra of gamma-ray burst models involving generic internal dissipation regions, including internal shocks, either by itself or in the pres...
Constraints on the Synchrotron Shock Model for the Fermi GBM Gamma-Ray Burst 090820A
Constraints Synchrotron Shock Model Fermi GBM Gamma-Ray Burst 090820A
2011/10/18
Discerning the radiative dissipation mechanism for prompt emission in Gamma-Ray Bursts (GRBs) requires detailed spectroscopic modeling that straddles the $\nu F_{\nu}$ peak in the 100 keV - 1 MeV rang...
Blazars as Ultra-High-Energy Cosmic-Ray Sources: Implications for TeV Gamma-Ray Observations
Ultra-High-Energy Cosmic-Ray Sources Implications TeV Gamma-Ray Observations
2011/10/20
Spectral fitting of correlated multiwavelength data of BL Lac objects and Fanaroff-Riley I radio galaxies gives the mean comoving magnetic field strength B', the bulk outflow Doppler factor Gamma, and...
Systematics in Aggregated Neutrino Fluxes and Flavor Ratios from Gamma-Ray Bursts
Systematics Aggregated Neutrino Fluxes Flavor Ratios Gamma-Ray Bursts
2011/10/20
Gamma-ray burst analyses at neutrino telescopes are typically based on diffuse or stacked (i.e., aggregated) neutrino fluxes, because the number of events expected from a single burst is small. The ag...
Gamma ray burst distances and the timescape cosmology
Gamma ray burst distances timescape cosmology
2011/10/20
Gamma ray bursts can potentially be used as distance indicators, providing the possibility of extending the Hubble diagram to redshifts ~7. Here we follow the analysis of Schaefer (2007), with the aim...
Post-Periastron Gamma Ray Flare from PSR~B1259-63/LS 2883 as a Result of Comptonization of the Cold Pulsar Wind
Comptonization Cold Pulsar Wind
2011/10/19
The recent detection of gamma rays with the {\it Fermi} Large Area Telescope (LAT) from the binary system PSR B1259-63/LS2883 provides unique information about the pulsar wind. Although the nature of ...
In the internal shock model of gamma ray bursts ultrahigh energy pions, kaons and neutrons are likely to be produced in the interactions of shock accelerated relativistic protons with low energy photo...