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Bahasa Indonesia: Nebula angin pulsar menyerupai tangan hantu dalam gambar komposit yang ditangkap oleh @NASAChandraXray dan Imaging X-ray Polarimetry Explorer (IXPE). Pulsar, bintang neutron padat berputar cepat, dapat dilihat sebagai titik putih terang di dekat pangkal telapak tangan. Kombinasi baru dengan IXPE mengungkapkan "tulang" medan magnet dari struktur yang luar biasa ini. IXPE mengamati pulsar ini, MSH 15-52, selama 17 hari yang merupakan yang paling lama ia melihat objek tunggal sejak diluncurkan pada Desember 2021.
Gambar kedua menunjukkan peta medan magnet di MSH 15-52. Dalam gambar ini, garis lurus pendek mewakili pengukuran Polarisasi IXPE, pemetaan arah medan magnet lokal. "Bars" oranye menandai pengukuran yang paling tepat, diikuti oleh batang cyan dan biru dengan pengukuran yang kurang tepat. Garis medan yang kompleks mengikuti ' Pergelangan tangan', ' palem' dan 'jari' tangan, dan mungkin membantu mendefinisikan struktur seperti jari yang diperpanjang. Jumlah Polarisasi — ditunjukkan dengan panjang batang — sangat tinggi, mencapai tingkat maksimum yang diharapkan dari karya teoritis. Untuk mencapai kekuatan itu, medan magnet harus sangat lurus dan seragam, yang berarti ada sedikit turbulensi di daerah tersebut dari Nebula angin pulsar. Deskripsi gambar: 1- Sebuah gambar komposit dari Nebula angin pulsar, yang sangat mirip dengan tangan ungu hantu dengan ujung jari yang berkilauan. Tiga ujung jari terpanjang dari bentuk tangan mengarah ke kanan atas, atau pukul 1:00 di wajah jam. Di sana, awan kecil, berbintik-bintik, oranye dan kuning tampak berkilauan atau bersinar seperti bara api. Awan oranye ini adalah bagian dari sisa-sisa ledakan supernova yang menciptakan pulsar. Latar belakang bintang ditangkap dalam cahaya inframerah. 2- Gambar kedua sama dengan yang pertama, kali ini dengan Vektor medan magnet berwarna oranye, cyan dan biru. Penempatan mereka mengikuti struktur tangan, menunjukkan presisi pengukuran.English: A pulsar wind nebula resembles a ghostly hand in a composite image captured by @NASAChandraXray and the Imaging X-ray Polarimetry Explorer (IXPE). The pulsar, a fast spinning dense neutron star, can be seen as a bright white spot near the base of the palm. The new combination with IXPE reveals the magnetic field “bones” of this remarkable structure. IXPE observed this pulsar, MSH 15-52, for 17 days which is the longest it has looked at any single object since it launched in December 2021.
The second image shows the magnetic field map in MSH 15-52. In this image, short straight lines represent IXPE polarization measurements, mapping the direction of the local magnetic field. Orange “bars” mark the most precise measurements, followed by cyan and blue bars with less precise measurements. The complex field lines follow the `wrist', 'palm' and 'fingers' of the hand, and probably help define the extended finger-like structures. The amount of polarization — indicated by bar length — is remarkably high, reaching the maximum level expected from theoretical work. To achieve that strength, the magnetic field must be very straight and uniform, meaning there is little turbulence in those regions of the pulsar wind nebula. Image description: 1- A composite image of a pulsar wind nebula, which strongly resembles a ghostly purple hand with sparkling fingertips. The three longest fingertips of the hand-shape point toward our upper right, or 1:00 on a clock face. There, a small, mottled, orange and yellow cloud appears to sparkle or glow like embers. This orange cloud is part of the remains of the supernova explosion that created the pulsar. The backdrop of stars was captured in infrared light. 2- The second image is the same as the first, this time with magnetic field vectors in orange, cyan and blue. Their placement follows the structure of the hand, indicating the precision of measurements. |
| Date | |
| Source | https://www.instagram.com/p/CzCKFelJxLz/?img_index=1 |
| Author | Kredit: X-ray: NASA/CXC/Stanford Univ. /R. Romani et al. (Chandra); NASA/MSFC (IXPE); inframerah: NASA/JPL-Caltech/DECaPS; Pemrosesan Gambar: NASA/CXC/SAO/J. Schmidt |
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