ISRO has successfully launched the satellite XPoSat which is world’s second ‘X-ray Polarimetry Space Observatory’. This will carry out research in ຊ່ອງ-based polarisation measurements of X-ray emission from various cosmic sources. Earlier, ອົງການ NASA had sent ‘Imaging X-ray Polarimetry Explorer (IXPE)’ into ຊ່ອງ in 2021 for the same objectives. X-ray Polarimetry Space Observatories measure the amount and direction of polarization of incoming X-rays emanating from cosmic bodies and ເປັນເຄື່ອງມືທີ່ເປັນເອກະລັກເພື່ອສຶກສາກົດຫມາຍຂອງທໍາມະຊາດໃນສະພາບທີ່ຮ້າຍກາດ.
ອິນເດຍ Space Research Organisation (ISRO) has successfully launched XPoSat, a ‘X-ray Polarimetry Observatory’. It is designed to carry out research in ຊ່ອງ-based polarisation and spectroscopic measurements of X-ray emission from cosmic sources.
ມັນບັນຈຸສອງ payloads ຄື POLIX (ເຄື່ອງມື Polarimeter ໃນ X-rays) ແລະ XSPECT (X-ray Spectroscopy ແລະ Timing). ໃນຂະນະທີ່ POLIX ຈະວັດແທກ polarization ຂອງ X-rays ໃນແຖບພະລັງງານ 8-30keV emanating ຈາກປະມານ 50 ແຫຼ່ງ cosmic ທີ່ມີທ່າແຮງໂດຍຜ່ານ Thomson Scattering, XSPECT payload ຈະປະຕິບັດການສຶກສາ spectral ໄລຍະຍາວແລະ temporal ຂອງແຫຼ່ງ X-ray cosmic ໃນແຖບພະລັງງານ 0.8. -15 ເຄ.
ອົງການ NASA Imaging X-ray Polarimetry Explorer (IXPE) launched into ຊ່ອງ on 9 December 2021 was the first X-ray Polarimetry Space Observatory. Since its launch, it has contributed to several groundbreaking research through studying polarization of X-rays from many different types of celestial objects such as the remnants of supernova explosions, powerful particle streams spit out by feeding ຮູ ດຳ, ແລະອື່ນໆ
X-ray Polarimetry Space Observatories measure the amount and direction of polarization of incoming X-rays emanating from cosmic bodies.
Since polarised light carries unique details about the source and medium it has passed through, X-ray Polarimetry Space Observatories like IXPE and XPoSat serve as a unique tool to study the laws of nature in extreme conditions.
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ເອກະສານ:
- ISRO. X-ray Polarimeter ດາວທຽມ (XPoSat). ມີຢູ່ https://www.isro.gov.in/PSLV_C58_XPoSat_Mission.html
- ISRO. ພາລະກິດ PSLV-C58/XPoSat. ມີຢູ່ https://www.isro.gov.in/media_isro/pdf/Missions/PSLV_C58/PSLV_C58_Brochure.pdf
- NASA 2023. IXPE ພາບລວມ. ມີຢູ່ https://www.nasa.gov/ixpe-overview/
- NASA ປີ 2023. IXPE ຂອງ NASA ເປັນຂີດໝາຍສອງປີຂອງອາວະກາດ X-ray ທີ່ແຕກຫັກ. ມີຢູ່ https://www.nasa.gov/missions/ixpe/nasas-ixpe-marks-two-years-of-groundbreaking-x-ray-astronomy/
- O'Dell S.L., et al 2018. The Imaging X-ray Polarimetry Explorer (IXPE): ພາບລວມດ້ານວິຊາການ. NASA. ມີຢູ່ https://ntrs.nasa.gov/api/citations/20180006418/downloads/20180006418.pdf
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