Public Seminar of Research Postgraduate(RPg) Student:- Anisotropic leptonic model for TeV halos around pulsars
Extended TeV gamma-ray emission (TeV halos) has been observed around some pulsars, which can be explained by the inverse Compton scattering between leptons from the pulsar outflow and the cosmic microwave background photons. This population of high energy particles is also expected to emit synchrotron radiation up to the X-ray energy range. However, no diffuse X-ray counterpart has been found for TeV halos. This has been attributed to very low magnetic field strength (less than a few μG) of the region. In this work, the speaker and his research team propose a new model to consider small pitch angles between the particles and the magnetic field lines, so that little synchrotron emission is generated. They performed detailed modeling of the emission profiles and compare their predictions with observations of TeV halo candidates.
時間：2024.06.11(二) 13:00
地點：香港大學 莊月明物理樓522室
講者：SUN Yi-Fan (香港大學)
語言：英語
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【此屬轉載訊息，以主事單位發佈為準】
此活動由香港大學物理系.RPg主辦。
https://www.physics.hku.hk/news_and_events/upcoming/20240611-yfs
