搜索结果: 1-12 共查到“Ｘ射线天文学 X-rays”相关记录12条 . 查询时间(0.062 秒)
A “beautiful effect” predicted by quantum electrodynamics (QED) can explain the puzzling first observations of polarized X-rays emitted by a magnetar – a neutron star featuring a powerful magnetic fie...
UNH scientist: Cosmic rays threaten future deep-space astronaut missions（图）
Cosmic rays astronauts
2014/12/1
DURHAM, N.H. –- Crewed missions to Mars remain an essential goal for NASA, but scientists are only now beginning to understand and characterize the radiation hazards that could make such ventures risk...
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...
A Hotspot for Powerful Cosmic Rays PHYSICISTS A STEP CLOSER TO FINDING MYSTERIOUS SOURCES
The universe Ray Hot spots. Mysterious The big dipper. High-energy cosmic rays The sun
2014/7/18
July 8, 2014 – An observatory run by the University of Utah found a “hotspot” beneath the Big Dipper emitting a disproportionate number of the highest-energy cosmic rays. The discovery moves physics a...
The New Generation Atlas of Quasar Spectral Energy Distributions from Radio to X-rays
Generation Atlas Spectral Energy Distributions Radio
2011/9/30
We have produced the next generation of quasar spectral energy distributions (SEDs), essentially updating the work of Elvis et al. (1994) by using high-quality data obtained with several space and gro...
One way to assess a drug’s effectiveness is to image the changes that it produces in the tissue of patients. But this is very challenging in the case of Alzheimer’s disease, because conventional tools...
The Cassiopeia A Supernova Remnant in X-Rays。
Using x-rays to probe the compact binary content of Globular clusters
x-rays binary content Globular clusters
2009/6/17
Using x-rays to probe the compact binary content of Globular clusters。
Cygnus x-3：orbital modulation in x-rays and radio。
Spectral Variability in Hard X-rays and the Evidence for a 13.5 Years Period in the Bright Quasar 3C273
Galaxies individual 3C273—X-rays
2009/5/19
We report the observation of nearest quasar 3C273 made
with LASE instrument on November 20th, 1998 as a part of our continuing
programme of balloon borne hard X-ray observations in the 20–200 keV
b...
SphinX：A Fast Solar Photometer in X-rays
Sun: X-rays spectrophotometer high time resolution
2009/5/6
The scientific goals and construction details of a new design,
Polish X-ray spectrophotometer are given. It will be incorporated within
the Russian TESIS X and EUV complex aboard the forthcoming COR...
期刊信息
篇名
The Gamma-ray Bright Blazars: Spectral Properties in X-Rays and Gamma-Rays
语种
英文
撰写或编译
撰写
作者
戴本忠、张力
第一作者单位
云南大学物理学
刊物名称
PASJ
页面
939-945
出版日期
2003年
10月
日
文章标识(ISSN)
0004-6264
相关项目
γ噪blazar天体快速光...