6/6/2023 0 Comments Sun corona x rays![]() ![]() EUV photons are created in the million-degree plasma of the corona and are not visible from the ground, due to the absorption of the Earth’s atmosphere. This telescope allows forecasters to monitor the Sun’s hot outer atmosphere, or corona. Moreover, FOXSI-3 is a scientific and technical demonstration experiment for a future satellite mission aiming to understand the particle acceleration in solar flares.įor more details, visit the National Astronomical Society of Japan website here.The GOES 16 and 17 spacecraft each carry a sophisticated extreme ultraviolet (EUV) telescope called the Solar Ultraviolet Imager (SUVI). Analyzing this will improve our understanding of the contribution of nano-flares to the coronal heating. ![]() In the future, we will analyze the data in detail and investigate whether the high temperature plasma of 10 million degrees permanently exists in the solar corona. Normally, the temperature of the corona is about several million degrees, but it is thought that when nano-flares occur, high-temperature plasma of 10 million degrees is generated. Nano-flares are thought to be one of the leading candidates for heating the solar corona. Nano-flares are extremely small flares about one billionth the size of normal solar flares. One of the topics of investigation is the contribution of "nano-flares" to the corona heating problem. The scientific purpose of FOXSI-3 is to understand the high-energy phenomena (energy release, particle acceleration, heating, etc.) in the solar corona. With these seven telescopes, it is possible to investigate the details of ultra-high temperature plasma and nonthermal plasma in the solar corona. FOXSI-3 is the first in the world to observe the solar soft X-ray region from 0.5 keV using focusing imaging spectroscopy. It is installed on the remaining telescope. The newly adopted instrument in FOXSI-3 is a soft X-ray camera with a back‐illuminated CMOS sensor (detector) for imaging spectroscopic observation in the soft X-ray range (mainly the low energy region from 0.5 keV to 10 keV). These detectors were also installed on the previous two FOXSI flights and generated scientific results. Six of the telescopes have focal plane detectors developed by the Japanese FOXSI team to observe the hard X-ray region (mainly the high energy region of 4 keV to 20 keV). Researchers can observe X-rays in a wide range of energies by changing the number of mirrors and the type of detectors. FOXSI-3 has seven telescopes consisting of grazing-incidence mirrors and detectors. Summary and Science Objectives of FOXSI-3įOXSI (Focusing Optics X-ray Solar Imager) is a US - Japan cooperative sounding rocket experiment that observes X-rays emitted from the solar corona through focusing imaging spectroscopic observations. Please expect significant science results. Researchers have just started to analyze the observational data, but they have found that more than 1,000,000 soft X-ray photons have been detected. They succeeded in focusing imaging spectroscopic observation of the solar corona in soft X-rays for the first time in the world. All observation instruments installed on FOXSI-3 worked properly. It observed three different solar corona regions with different X-ray brightnesses, such as "active regions", "quiet regions", and the "solar north pole" for 6 minutes. FOXSI-3 flew in a ballistic trajectory for about 15 minutes reaching a maximum altitude of about 300 km. on Septemin Japan Standard Time), the solar observing rocket FOXSI-3 (Focusing Optics X-ray Solar Imager) was launched from the launch site located at White Sands, New Mexico, USA. on Septem(in Mountain Daylight Time, 2:21 a.m. Kavli Institute for the Physics and Mathematics of the Universe (Kavli IPMU)Īt 11:21 a.m. ![]()
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