The Hard X-ray Modulation Telescope(HXMT) is China's first astronomical satellite.It will perform a broad band(1–250 keV) scan survey and do pointed observations of X-ray sources to study their spectra and multi-...The Hard X-ray Modulation Telescope(HXMT) is China's first astronomical satellite.It will perform a broad band(1–250 keV) scan survey and do pointed observations of X-ray sources to study their spectra and multi-wavelength temporal properties. The pre-flight models of the satellites have been finished, and the flight models are in production. The expected launch date of HXMT is in late 2015.展开更多
The Hard X-ray Modulation Telescope(HXMT) is China's first X-ray(1-250 keV)astronomical satellite officially approved in 2011.It will scan the Galactic plane to detect new transient sources and do pointed observat...The Hard X-ray Modulation Telescope(HXMT) is China's first X-ray(1-250 keV)astronomical satellite officially approved in 2011.It will scan the Galactic plane to detect new transient sources and do pointed observations of X-ray sources to study their spectra and multiwavelength temporal properties.Now the flight model of the satellite is in the final testing stage,and the expected launch date is in late 2016.展开更多
The Hard X-ray Modulation Telescope(HXMT) was launched at Jiuquan Satellite Launch Center on June 15, 2017, and was named as Insight-HXMT after the launch. Now all the instruments work properly in space, dozens of sou...The Hard X-ray Modulation Telescope(HXMT) was launched at Jiuquan Satellite Launch Center on June 15, 2017, and was named as Insight-HXMT after the launch. Now all the instruments work properly in space, dozens of sources have been observed, and some early scientific results have been published. The nominal lifetime of Insight-HXMT is 4 years.展开更多
The Hard X-ray Modulation Telescope(HXMT) satellite is the first X-ray astronomical satellite in China. Utilizing the "direct demodulation image reconstruction method", HXMT will perform broad band(1-250 keV...The Hard X-ray Modulation Telescope(HXMT) satellite is the first X-ray astronomical satellite in China. Utilizing the "direct demodulation image reconstruction method", HXMT will perform broad band(1-250 keV) survey of large sky areas in scanning mode, which can result in source detection characterized with high sensitivity and spatial resolution. Point observation is another key working mode of HXMT, and is specified for observations of galactic bright sources like X-Ray Binary(XRB) and others. Additionally, HXMT also has a powerful capability developed for monitoring gamma-ray bursts, which is quite unique in the world due to its energy coverage of 200 keV-3 MeV and largest detection area. The HXMT satellite was launched by a Long March 4 B(LM-4 B) rocket from the Jiuquan Satellite Launch Center on June 15, 2017. The payloads onboard HXMT are a High Energy X-ray Telescope(HE), a Medium Energy X-ray Telescope(ME), a Low Energy X-ray Telescope(LE), and a Space Environment Monitor(SEM).This paper introduces the main technical aspects of the satellite, including scientific objectives, technical features, mission design, and system design.展开更多
The Hard X-ray Modulation Telescope(HXMT)is an X-ray astronomical satellite in 1-250 keV,consisting of three collimated instruments.We present the in-flight calibration approach of the collimator alignment and Point S...The Hard X-ray Modulation Telescope(HXMT)is an X-ray astronomical satellite in 1-250 keV,consisting of three collimated instruments.We present the in-flight calibration approach of the collimator alignment and Point Spread Function(PSF)for HXMT,using both the direct fitting method and the imaging method.According to observational simulations of the Crab Nebula,we find that these two methods produce almost the same calibration accuracy of the alignment,and with a one-day scanning observation,the alignment can be calibrated to better than 0.45'and 0.1'along the wide and narrow directions of the Field of View(FOV)for a detector module,which corresponds to a localization accuracy of better than 0.1'and meets the scientific requirement.展开更多
文摘The Hard X-ray Modulation Telescope(HXMT) is China's first astronomical satellite.It will perform a broad band(1–250 keV) scan survey and do pointed observations of X-ray sources to study their spectra and multi-wavelength temporal properties. The pre-flight models of the satellites have been finished, and the flight models are in production. The expected launch date of HXMT is in late 2015.
文摘The Hard X-ray Modulation Telescope(HXMT) is China's first X-ray(1-250 keV)astronomical satellite officially approved in 2011.It will scan the Galactic plane to detect new transient sources and do pointed observations of X-ray sources to study their spectra and multiwavelength temporal properties.Now the flight model of the satellite is in the final testing stage,and the expected launch date is in late 2016.
基金Supported by the Major Program of the National Natural Science Foundation of China(41590851)
文摘The Hard X-ray Modulation Telescope(HXMT) was launched at Jiuquan Satellite Launch Center on June 15, 2017, and was named as Insight-HXMT after the launch. Now all the instruments work properly in space, dozens of sources have been observed, and some early scientific results have been published. The nominal lifetime of Insight-HXMT is 4 years.
文摘The Hard X-ray Modulation Telescope(HXMT) satellite is the first X-ray astronomical satellite in China. Utilizing the "direct demodulation image reconstruction method", HXMT will perform broad band(1-250 keV) survey of large sky areas in scanning mode, which can result in source detection characterized with high sensitivity and spatial resolution. Point observation is another key working mode of HXMT, and is specified for observations of galactic bright sources like X-Ray Binary(XRB) and others. Additionally, HXMT also has a powerful capability developed for monitoring gamma-ray bursts, which is quite unique in the world due to its energy coverage of 200 keV-3 MeV and largest detection area. The HXMT satellite was launched by a Long March 4 B(LM-4 B) rocket from the Jiuquan Satellite Launch Center on June 15, 2017. The payloads onboard HXMT are a High Energy X-ray Telescope(HE), a Medium Energy X-ray Telescope(ME), a Low Energy X-ray Telescope(LE), and a Space Environment Monitor(SEM).This paper introduces the main technical aspects of the satellite, including scientific objectives, technical features, mission design, and system design.
基金supported by the National Basic Research Program of China(Grant No.2009CB824800)
文摘The Hard X-ray Modulation Telescope(HXMT)is an X-ray astronomical satellite in 1-250 keV,consisting of three collimated instruments.We present the in-flight calibration approach of the collimator alignment and Point Spread Function(PSF)for HXMT,using both the direct fitting method and the imaging method.According to observational simulations of the Crab Nebula,we find that these two methods produce almost the same calibration accuracy of the alignment,and with a one-day scanning observation,the alignment can be calibrated to better than 0.45'and 0.1'along the wide and narrow directions of the Field of View(FOV)for a detector module,which corresponds to a localization accuracy of better than 0.1'and meets the scientific requirement.
