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DAMPE
The Dark Matter Particle Explorer, or DAMPE, also known as Wukong (), is a Chinese Academy of Sciences (CAS) satellite which launched on 17 December 2015. The satellite was launched on a Long March 2D rocket from Launch Pad 603 at the LC-43 complex, also known as the South Launch Site, at the Jiuquan Satellite Launch Center. It is China's first space observatory. DAMPE is a space telescope used for the detection of high energy gamma rays, electrons and cosmic ray ions, to aid in the search for dark matter. It was designed to look for the indirect decay signal of a hypothetical dark matter candidate called weakly interacting massive particles (WIMPs). The project is the result of a collaboration among research institutions and universities in Italy, Switzerland and China under the leadership of the Purple Mountain Observatory (PMO) of the Chinese Academy of Sciences (CAS). Objectives The scientific objectives of the mission are: * the search and study of dark matter part ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Long March 2D
The Long March 2D (), also known as the Chang Zheng 2D, CZ-2D and LM-2D, is a Chinese two-stage orbital carrier rocket mainly used for launching LEO and SSO satellites. It is manufactured by the Shanghai Academy of Spaceflight Technology (SAST). It is mainly launched from areas LA-2B and LA-4 at the Jiuquan Satellite Launch Center. The Long March 2D made its maiden flight on 9 August 1992. It was initially used to launch FSW-2 and FSW-3 reconnaissance satellites. Unlike all other members of the Long March 2 rocket family, the Long March 2D is a two-stage version of the Long March 4 The Long March rockets are a family of expendable launch system rockets operated by the China Aerospace Science and Technology Corporation. The rockets are named after the Chinese Red Army's 1934–35 Long March military retreat during the ... launch vehicle. Launch statistics List of launches The Long March 2D made its maiden flight on 9 August 1992. References Exter ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Monkey King
The Monkey King, also known as Sun Wukong ( zh, t=孫悟空, s=孙悟空, first=t) in Mandarin Chinese, is a legendary mythical figure best known as one of the main characters in the 16th-century Chinese novel ''Journey to the West'' ( zh, t=西遊記, s=西游记, first=t) and many later stories and adaptations. In ''Journey to the West'', Sun Wukong is a monkey born from a stone who acquires supernatural powers through Taoist practices. After rebelling against heaven, he is imprisoned under a mountain by the Buddha. After five hundred years, he accompanies the monk Tang Sanzang (唐三藏) and two other disciples on a journey to get back Buddhist sutras from the West (India), where Buddha and his followers dwell. Sun Wukong possesses many abilities. He has amazing strength and is able to support the weight of two heaven mountains on his shoulders while running "with the speed of a meteor". He is extremely fast, able to travel 108,000 li (54,000 km, 34,000 mi) i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dark Matter
Dark matter is a hypothetical form of matter thought to account for approximately 85% of the matter in the universe. Dark matter is called "dark" because it does not appear to interact with the electromagnetic field, which means it does not absorb, reflect, or emit electromagnetic radiation and is, therefore, difficult to detect. Various astrophysical observationsincluding gravitational effects which cannot be explained by currently accepted theories of gravity unless more matter is present than can be seenimply dark matter's presence. For this reason, most experts think that dark matter is abundant in the universe and has had a strong influence on its structure and evolution. The primary evidence for dark matter comes from calculations showing that many galaxies would behave quite differently if they did not contain a large amount of unseen matter. Some galaxies would not have formed at all and others would not move as they currently do. Other lines of evidence include obse ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Institute Of High Energy Physics
The Institute of High Energy Physics of the Chinese Academy of Sciences (IHEP) () is the largest and most comprehensive fundamental research center of high-energy physics in China. It is located in Shijingshan District, Beijing and administered by the Chinese Academy of Sciences. The major research fields of IHEP are particle physics, astrophysics and astroparticle physics, accelerator physics and technologies, radiation technologies, and their applications. Related * Beijing Electron-Positron Collider (BEPC and BEPCII) * Beijing Proton Linac (BPL) * Beijing Spectrometer III (BES III) * Beijing Synchrotron Radiation Facility * Beijing Test Beam Facility * China Spallation Neutron Source * Dark Matter Particle Explorer (DAMPE) * Daya Bay Reactor Neutrino Experiment * Hard X-ray Modulation Telescope (HXMT) * High Energy cosmic Radiation Detector facility (HERD) * Jiangmen Underground Neutrino Observatory (JUNO) * Large High Altitude Air Shower Observatory (LHAASO) * POLAR ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chinese Academy Of Sciences
The Chinese Academy of Sciences (CAS); ), known by Academia Sinica in English until the 1980s, is the national academy of the People's Republic of China for natural sciences. It has historical origins in the Academia Sinica during the Republican era and was formerly also known by that name. Collectively known as the "Two Academies (两院)" along with the Chinese Academy of Engineering, it functions as the national scientific think tank and academic governing body, providing advisory and appraisal services on issues stemming from the national economy, social development, and science and technology progress. It is headquartered in Xicheng District, Beijing, with branch institutes all over mainland China. It has also created hundreds of commercial enterprises, Lenovo being one of the most famous. CAS is the world's largest research organization. It had 60,000 researchers in 2018 and 114 institutes in 2016, and has been consistently ranked among the top research organizati ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Proton
A proton is a stable subatomic particle, symbol , H+, or 1H+ with a positive electric charge of +1 ''e'' elementary charge. Its mass is slightly less than that of a neutron and 1,836 times the mass of an electron (the proton–electron mass ratio). Protons and neutrons, each with masses of approximately one atomic mass unit, are jointly referred to as "nucleons" (particles present in atomic nuclei). One or more protons are present in the Atomic nucleus, nucleus of every atom. They provide the attractive electrostatic central force which binds the atomic electrons. The number of protons in the nucleus is the defining property of an element, and is referred to as the atomic number (represented by the symbol ''Z''). Since each chemical element, element has a unique number of protons, each element has its own unique atomic number, which determines the number of atomic electrons and consequently the chemical characteristics of the element. The word ''proton'' is Greek language, G ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Electronvolt
In physics, an electronvolt (symbol eV, also written electron-volt and electron volt) is the measure of an amount of kinetic energy gained by a single electron accelerating from rest through an electric potential difference of one volt in vacuum. When used as a unit of energy, the numerical value of 1 eV in joules (symbol J) is equivalent to the numerical value of the charge of an electron in coulombs (symbol C). Under the 2019 redefinition of the SI base units, this sets 1 eV equal to the exact value Historically, the electronvolt was devised as a standard unit of measure through its usefulness in electrostatic particle accelerator sciences, because a particle with electric charge ''q'' gains an energy after passing through a voltage of ''V.'' Since ''q'' must be an integer multiple of the elementary charge ''e'' for any isolated particle, the gained energy in units of electronvolts conveniently equals that integer times the voltage. It is a common unit of ene ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Energy Spectrum
A spectrum (plural ''spectra'' or ''spectrums'') is a condition that is not limited to a specific set of values but can vary, without gaps, across a continuum. The word was first used scientifically in optics to describe the rainbow of colors in visible light after passing through a prism. As scientific understanding of light advanced, it came to apply to the entire electromagnetic spectrum. It thereby became a mapping of a range of magnitudes (wavelengths) to a range of qualities, which are the perceived "colors of the rainbow" and other properties which correspond to wavelengths that lie outside of the visible light spectrum. Spectrum has since been applied by analogy to topics outside optics. Thus, one might talk about the " spectrum of political opinion", or the "spectrum of activity" of a drug, or the "autism spectrum". In these uses, values within a spectrum may not be associated with precisely quantifiable numbers or definitions. Such uses imply a broad range of conditi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Positron
The positron or antielectron is the antiparticle or the antimatter counterpart of the electron. It has an electric charge of +1 '' e'', a spin of 1/2 (the same as the electron), and the same mass as an electron. When a positron collides with an electron, annihilation occurs. If this collision occurs at low energies, it results in the production of two or more photons. Positrons can be created by positron emission radioactive decay (through weak interactions), or by pair production from a sufficiently energetic photon which is interacting with an atom in a material. History Theory In 1928, Paul Dirac published a paper proposing that electrons can have both a positive and negative charge. This paper introduced the Dirac equation, a unification of quantum mechanics, special relativity, and the then-new concept of electron spin to explain the Zeeman effect. The paper did not explicitly predict a new particle but did allow for electrons having either positive or ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cosmic Rays
Cosmic rays are high-energy particles or clusters of particles (primarily represented by protons or atomic nuclei) that move through space at nearly the speed of light. They originate from the Sun, from outside of the Solar System in our own galaxy, and from distant galaxies. Upon impact with Earth's atmosphere, cosmic rays produce showers of secondary particles, some of which reach the surface, although the bulk is deflected off into space by the magnetosphere or the heliosphere. Cosmic rays were discovered by Victor Hess in 1912 in balloon experiments, for which he was awarded the 1936 Nobel Prize in Physics. Direct measurement of cosmic rays, especially at lower energies, has been possible since the launch of the first satellites in the late 1950s. Particle detectors similar to those used in nuclear and high-energy physics are used on satellites and space probes for research into cosmic rays. Data from the Fermi Space Telescope (2013) have been interpreted as evi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gran Sasso Science Institute
The ''Gran Sasso Science Institute'' (GSSI) is an international school for advanced studies located in L'Aquila, Italy. Founded in 2012 as a research institute and superior graduate school dependent on the National Institute of Nuclear Physics (INFN), the academic institution has been made autonomous in 2016. History The institute was first proposed after the earthquake in L'Aquila of 2009, when the Ministry of Economy and Finance and the Organisation for Economic Co-operation and Development (OECD) organized several meetings to plan the economic revitalization of the area. A proposal was made to establish an educational institution for the purposes of teaching and research which would make use of the National Laboratories of Gran Sasso of the National Institute of Nuclear Physics located right near the capital of Abruzzo. The GSSI was officially established in 2012 and later activated in the academic year 2013 – 2014. Among its founders are the academics Eugenio Co ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
University Of Lecce
The University of Salento ( it, Università del Salento, called until 2007 ''Università degli Studi di Lecce'') is a university located in Lecce, Italy. It was founded in 1955 by Giuseppe Codacci Pisanelli. The university of Salento commenced activities in the academic year 1955-1956 under the "Salentine University Council". In 1960, it became the "Free University of Lecce" and passed to Government authority in the 1967–1968 academic year. Since 2005, the University of Salento is a partner of the Euro-Mediterranean Center for Climate Change (CMCC). University of Salento is ranked 251-275 among the top world's university and fifth in Italy, according to the Times Higher Education World University Rankings released on 2015. In 2018, it was ranked 501–600, according to the Times Higher Education World University Rankings. Organization and Programmes The university is divided into 8 departments, which offer the following programmes: Department of Biological and Environmental ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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