搜索结果: 1-13 共查到“天文学 origins”相关记录13条 . 查询时间(0.093 秒)
Study: Without more data, a black hole’s origins can be “spun” in any direction（图）
黑洞 双星系统 黑洞起源
2023/6/9
Clues to a black hole’s origins can be found in the way it spins. This is especially true for binaries, in which two black holes circle close together before merging. The spin and tilt of the respecti...
Yen-Jie Lee probes particle collision data for clues to the universe’s origins（图）
粒子碰撞数据 宇宙起源 粒子物理学
2023/6/9
When Yen-Jie Lee came to MIT as a graduate student in 2006, it was a bit of a culture shock. The aspiring particle physicist had studied physics at National Taiwan University before his career took a ...
Scientists link star-shredding event to origins of universe's highest-energy particles（图）
Scientists star-shredding event origins universe highest-energy particles
2021/3/5
A team of scientists has detected the presence of a high-energy neutrino -- a particularly elusive particle -- in the wake of a star's destruction as it is consumed by a black hole.The discovery is a ...
Study Confirms Cosmic Rays Have Extragalactic Origins（图）
Cosmic Rays Extragalactic Origins
2017/10/24
In an article to be published Sept. 22 in the journal Science, a group of more than 400 scientists from 18 nations describe how they detected an anisotropy, an asymmetry in the cosmic particles’ distr...
In a first-of-its-kind analysis, Northwestern University astrophysicists have discovered that, contrary to previously standard lore, up to half of the matter in our Milky Way galaxy may come from dist...
2017太阳系的起源高登研究研讨会（The Gordon Research Seminar on Origins of Solar Systems）
2017 太阳系的起源高登研究 研讨会
2017/3/9
The Gordon Research Seminar on Origins of Solar Systems is a unique forum for graduate students, post-docs, and other scientists with comparable levels of experience and education to present and excha...
中法“起源”天文联合实验室2017年合作项目征集工作已经开始，截至日期2017年3月15日。
2017太阳系的起源戈登学术会议（The 2017 Gordon Research Conference on Origins of Solar Systems）
2017 太阳系的起源戈登 学术会议
2017/1/11
The Gordon Conference on Origins of Solar Systems brings together a diverse group of scientists to discuss research at the frontier of understanding how planets and planetary systems form. Invited spe...
The morphological diversities among star-forming galaxies at high redshifts in the great observatories origins deep survey
high-redshift fundamental parameters
2014/12/24
We used the deep, multiwavelength images obtained by the Great Observatories Origins Deep Survey (GOODS) to identify ~4700 Lyman break galaxies (LBGs) at z > 2.5, and 292 starburst galaxies at z ~ 1.2...
The Gamma-Ray Background Constrains the Origins of the Radio and X-Ray Backgrounds
cosmic rays gamma rays diffuse background radio continuum galaxies X-rays
2010/11/9
Cosmic ray protons generate γ-rays, neutrinos, and secondary electrons and positrons (e±) through pionproducing collisions with gas atoms. Any synchrotron or Inverse Compton (IC) radiation from second...
On the Origins of the High-Latitude H-alpha Background
the High-Latitude H-alpha Background
2011/1/10
The diffuse high-latitude H-alpha background is widely believed to be predominantly the result of in-situ recombination of ionized hydrogen in the warm interstellar medium of the Galaxy. Instead, we s...
Origins of the H, He I, and Ca II Line Emission in Classical T Tauri Stars
Solar and Stellar Astrophysics (astro-ph.SR)
2011/1/6
We perform local excitation calculations to obtain line opacities and emissivity ratios and compare them with observed properties of H, He I, O I, Ca II, and Na I lines to determine the density, tempe...
Cambridge research to explore the origins of the universe（图）
Cambridge origins of the universe rocket CMB European Space Agency
2009/5/21
Cambridge University researchers are casting their gaze back to the start of the universe following the launch last week of two of the most expensive scientific satellites ever built by the European S...