The onorbit calibration of dark matter particle explorer inspire. The payload is designed to detect high energy cosmic rays and rays with high energy resolution and spatial resolution. First finding of chinas dampe may shed light on dark matter research created date. Chinas darkmatter satellite launches era of space science. Dampe has the widest energy range coverage, the highest energy resolution and the best particle identification ability of all the dark matter probes currently in space, which is perfect for searching for traces of the annihilation or decay of dark matter.
The dark matter particle explorer dampe satellite youtube. In this paper, we adopt a maximum likelihood method and use the. Progresses of the dark matter particle explorer experiment. Boresight alignment of dark matter particle explorer arxiv. 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. Nov 29, 2017 the dark matter particle explorer dampe collaboration reports a direct measurement between 25 gigaelectronvolts and 4.
Scalar dark matter interpretation of the dampe data with u. Progresses of the dark matter particle explorer dampe experiment. After beyond one years onorbit operation, tens of sources including pulsars psr, active galaxy nuclei agn, supernova remnants snr etc. The latest measurement of energy spectrum of cosmicray electrons and positrons by chinas dark matter particle explorer dampe satellite could provide important information to scientists who are. Pdf the onorbit calibration of dark matter particle explorer. Highly accurate measurements of cosmic ray electron flux by the dark matter particle explorer dampe ranging between 25 gev and 4. Abstract springer the dark matter particle explorer dampe is a satelliteborne, highenergy particle and ray detector, which is dedicated to indirectly detecting particle dark matter and studying highenergy astrophysics. Dark matter particle explorer observations of highenergy. The dark matter particle explorer dampe, a satellitebased cosmic ray and gammaray. The dark matter particle explorer, or dampe also known as wukong, is a chinese academy of sciences cas satellite which launched on 17 december. The dark matter particle explorer dampe, also known as wukong mission published its first. Dark matter particle explorer dampe spaceflight101. Fluids in the universe are generally given by \radiation and \matter.
In a class of models that dm particles first annihilate into a pair of intermediate particles which then decay into standard model particles, boxshaped spectra can be produced. Introduction the dark matter particle explorer dampe is a satelliteborne, calorimetric type, highenergy particle detector dedicated to the indirect detection of dark matter dm in space and astrophysical studies 1, 2. The dark matter particle explorer dampe, a satellitebased cosmic ray and gammaray detector, was launched on december 17, 2015, and began its onorbit operation on december 24, 2015. Dec 28, 2015 c hinas dark matter particle explorer dampe has returned its first data to ground stations.
Dark matter particle explorer dampe is a high energy cosmic ray and gammaray telescope sensitive in energies from. The main scientific objective of dampe is to detect. Nov 30, 2017 the dark matter particle explorer dampe, also known as wukong mission published its first scientific results on nov. The dark matter particle explorer dampe was launched into space on dec. Precise measurements of spectra of cosmic ray electronspositrons can effectively probe the nature of dark matter dm particles. Constraints on boxshaped cosmic ray electron feature from. Dark matter particle explorer and its first results. The dampe mission is one of the scientific space science missions within the framework of the strategic pioneer program on space science of cas chinese academy of science. Scientific objectives of dampe high energy particle detection in space measure the high energy cosmic electron and gamma spectra and search for dark matter signatures study of cosmic ray spectrum and composition high energy gamma ray astronomy 3 detection of 1 gev 10 tev e. Recent progresses of the dark matter particle explorer dampe. Recent progresses of the dark matter particle explorer dampe the collaboration china. The measured spectrum confirms the spectral hardening at 300 gev found by previous experiments and reveals a softening at. Direct detection of a break in the teraelectronvolt cosmic. The dampe mission, nicknamed wukong after the supernatural monkey king in a 16thcentury chinese novel, is the result of a collaboration between universities in switzerland.
C hinas dark matter particle explorer dampe has returned its first data to ground stations. Chinas satellite finds mysterious signals in dark matter search. Dampe dark matter particle explorer nicknamed wukong. Latest results of the dark matter particle explorer dampe.
Progresses of the dark matter particle explorer o crd2e. Results from chinas monkey king satellite may boost dark. The dark matter particle explorer dampe will probe gaps in our understanding of highenergy astrophysics and it just might detect signatures of elusive dark matter. Due to the orbit of the dampe satellite we have a nonuniform sky exposure pulsars. Dampe dark matter particle explore is one of the five satellite missions in the framework of the strategic pioneer research program in space science of the chinese academy of sciences cas. First observations of pulsars with the dark matter.
Scalar dark matter interpretation of the dampe data with u1. Dampe has been launched the 17 december 2015 at 08. China s satellite finds mysterious signals in dark matter. Boresight alignment of dark matter particle explorer inspire. Dark matter particle explorer dampe the fermi gammaray. The nearest black hole from us a062000 has been discovered for a long time cantrell 2010. Dampe, the dark matter particle explorer, is an astrophysics observatory operated by the chinese academy of sciences as one of five missions initiated under. The number density of any particle that does not have its number changed scales as, n particlea 3 3 this has two consequences. The spectral softening, as was pointed out in 3, may be due to the breakdown of the conven. Dec 17, 2015 wukong, officially called the dark matter particle explorer dampe, is also notable for being the first in a series of five spacescience missions to emerge from the chinese academy of sciences.
The dark matter particle explorer dampe satellite, which has been given the moniker wukong after the monkey king from the chinese classical fiction journey to the west, was launched at 8. The first chinese astronomical satellite results from the first five years of alpha magnetic spectrometer ams data on the iss physics for all a project to carry physics into refugee sites. Measurement of the cosmic ray proton spectrum from 40 gev to. Pdf the onorbit calibration of dark matter particle. Due to the orbit of the dampe satellite we have a nonuniform sky exposure pulsars are observed during different periods of time. The initial detection results were published in the latest issue of the academic journal, nature. The dampe satellite was launched to a 500 km sunsynchronous orbit on december 17th, 2015. Recent accurate measurements of cosmic ray electron flux by the dark matter particle explorer dampe reveal a sharp peak structure near 1. The dark matter particle explorer dampe is a satellite mission which has been operating stably in a solar synchronous orbit since it was launched on december 17, 2015 from jiuquan, china. The dark matter particle explorer dampe is a satelliteborne, highenergy particle and ray detector, which is dedicated to indirectly detecting particle dark matter and studying highenergy astrophysics. The main scientific objective of dampe is to detect electrons and photons in the range.
Jin chang is the pi of the dark matter particle explorer wukong, the deputy director of purple mountain observatory, and a visiting researcher at kanagawa university and the maxplanck institute for solar system research. The dampe detector consists of four parts, including a plas. Recent progresses of the dark matter particle explorer dampe the collaboration china purple mountain observatory, cas, nanjing. Observation of time evolution of cosmic ray electron and positron flux with dark matter particle explorer o crd4e. The dark matter particle explorer dampe can measure. The dark matter particle explorer dampe is a space mission within the strategic framework of the chinese academy of sciences, resulting from a collaboration of chinese, italian, and swiss. Apr 15, 2020 dark matter particle explorer dampe image. Such energy spectra of cosmic rays are distinct from astrophysical. Measurement of cosmicray proton spectrum with the dark. Dark matter particle explorer dampe on behalf of dampe team li, xiang purple mountain observatory, cas. The dark matter particle explorer dampe, an upco ming satellite supported by the strategic priority science and technology projects in space science of the. Energy correction based on fluorescence attenuation of dampe. The dark matter particle explorer dampe, one of the four scientific space science missions within the framework of the strategic pioneer program on space science of. The satellite was launched on a long march 2d rocket from launch pad 603 at the lc43 complex, also known as the south launch site, at the jiuquan satellite launch center.
Dampe will work in space for at least three years and the first results are expected to be available in 2017. The dark matter particle explorer dampe is a satelliteborne, highenergy particle and. Spacecraft launch mission status sensor complement ground segment references. Elemental analysis of cosmic ray flux with dampe o crd7e. Wukong makes china world leader in dark matter detection.
First observations of pulsars with the dark matter particle explorer maria munoz salinas for each source we select events within 3 of the pulsar known position. The dark matter particle explorer mission sciencedirect. If the black hole grew adiabatically, the dark matter density would be enhanced in a region corresponding to the sphere of influence of. Pdf the dark matter particle explorer mission researchgate. Chinas dark matter probe begins operation science the. In this study, we adopt the decayingdm model to interpret the 1. The dark matter particle explorer dampe chang et al. Radiation matter is any relavistic nonrelativistic matter in the early universe. Dampe o ers a new opportunity for advancing our knowledge of cosmic rays, dark matter, and gammaray astronomy. Pdf the dark matter particle explorer dampe, one of the four scientific space science missions within the framework of the strategic. The first results about precise measurement of the cosmic ray electron plus positron spectrum between 25 gev and 4. This unexpected peak structure can be reproduced by the annihilationdecay of a nearby dark matter dm halo.
Progresses of the dark matter particle explorer dampe. Wukong, or the dark matter particle explorer dampe, was launched in december 2015. Dark matter indirect detection ray astronomy cosmic ray physics three major scientific goals dampe wukong lanuched on dec. The dark matter particle explorer dampe collaboration reports a direct measurement between 25 gigaelectronvolts and 4. It can measure highenergy electrons and gammarays up to 10 tev with unprecedentedly high energy resolution and low background. In this work we document the onorbit calibration procedures used by dampe and report the calibration results. The dark matter particle explorer dampe, an upcoming satellite supported by the strategic priority science and technology projects in space science of the chinese academy of sciences, is designed to address a number of scientific objectives which include, understanding the mechanisms of particle acceleration in celestial sources. First observations of pulsars with the dark matter particle. Dark matter particle explorer national space science center. The dark matter particle explorer mission inspirehep. Dark matter particle explorer wikipedia bahasa indonesia. It is helping scientists lift the cloak of invisibility from dark matter. The onorbit calibration of dark matter particle explorer.
Based on the latest data, the mass of the black hole is m bh 6. The first results about precise measurement of the cosmic ray electron plus positron spectrum between 25 gev. Dampe, the dark matter particle explorer, is an astrophysics observatory operated by the chinese academy of sciences as one of five missions initiated under the strategic pioneer research program in space science. The dark matter particle explorer dampe, also known as wukong the famous monkey king in china, is a space mission supported by the strategic priority science and technology projects in space science program of the chinese academy of sciences. This is the first time that an experiment directly measures the cosmic ray protons up to 100 tev with high statistics. The dark matter particle explorer dampe and the high energy radiation detection facility herd xin wu dpnc, university of geneva, switzerland science data center meeting 29 september 2016, isdc, geneva, switzerland. The dark matter particle explorer dampe, a satellitebased cosmic ray and gammaray detector, was launched on december 17, 2015, and began its onorbit ope. Initial assessments indicate everything is working correctly and the spacecraft is. Dark matter particle explorer, atau dampe, adalah satelit cas yang diluncurkan pada tanggal 17 desember 2015 00. First finding of chinas dampe may shed light on dark matter. The dark matter particle explorer dampe is chinas first astronomical satellite dedicated to the indirect detection of dark matter particles and the study of highenergy astrophysics. Wukong, officially called the dark matter particle explorer dampe, is also notable for being the first in a series of five spacescience missions to emerge from the chinese academy of. Initial assessments indicate everything is working correctly and the spacecraft is now ready to.
The dark matter particle explorer dampe, one of the four scientific space science missions within the framework of the strategic pioneer program on space science of the chinese academy of sciences, is a general purpose high energy cosmicray and gammaray observatory, which was successfully launched on december 17th, 2015 from the jiuquan satellite launch center. The dark matter particle explorer dampe 25, initially named tansuo 26, 27, 28, was successfully launched into a sunsynchronous orbit at the altitude of 500 km on 2015 december 17th from the jiuquan launch base. The dark matter particle explorer dampe, also known as wukong mission published its first scientific results on nov. First finding of chinas dampe may shed light on dark. The dark matter particle explorer dampe, one of the four scientific space science missions within the framework of the strategic pioneer program on space science of the chinese academy of. Bright gammaray sources observed by dark matter particle.
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