التفاصيل البيبلوغرافية
| العنوان: |
SPIE 9144, Space Telescopes and Instrumentation 2014: Ultraviolet to Gamma Ray |
| المؤلفون: |
Wu, Xin, Su, Meng, Bravar, Alessandro, Chang, Jin, Fan, Yizhong, Pohl, Martin, Walter, Roland |
| المصدر: |
SPIE Astronomical Telescopes + Instrumentation 2014 / Takahashi, T. & den Herder, J.-W. & Bautz, M. (ed.), (2014) p. 15 |
| بيانات النشر: |
SPIE Press |
| سنة النشر: |
2014 |
| المجموعة: |
Université de Genève: Archive ouverte UNIGE |
| مصطلحات موضوعية: |
info:eu-repo/classification/ddc/500.2, Gamma-ray astronomy, Cosmic ray physics, Supernova remnants, Black holes, Pulsars, Gammaray, Bursts, Dark matter, Gamma-ray telescope, Pair production, Spectrometer, Scintillating fiber tracker, Silicon tracker, Point spread function, Polarimetry |
| الوصف: |
We describe the instrument concept of a high angular resolution telescope dedicated to the sub-GeV (from ≳10 MeV to ≳1 GeV) gamma-ray photon detection. This mission, named PANGU (PAir-productioN Gamma-ray Unit), has been suggested as a candidate for the joint small mission between the European Space Agency (ESA) and the Chinese Academy of Science (CAS). A wide range of topics of both astronomy and fundamental physics can be attacked with PANGU, covering Galactic and extragalactic cosmic-ray physics, extreme physics of a variety of extended (e.g. supernova remnants, galaxies, galaxy clusters) and compact (e.g. black holes, pulsars, gamma-ray bursts) objects, solar and terrestrial gamma-ray phenomena, and searching for dark matter decay and/or annihilation signature etc. The unprecedented point spread function can be achieved with a pair-production telescope with a large number of thin active tracking layers to precisely reconstruct the pair-produced electron and positron tracks. Scintillating fibers or thin silicon micro-strip detectors are suitable technology for such a tracker. The energy measurement is achieved by measuring the momentum of the electrons and positrons through a magnetic field. The innovated spectrometer approach provides superior photon pointing resolution, and is particular suitable in the sub-GeV range. The level of tracking precision makes it possible to measure the polarization of gamma rays, which would open up a new frontier in gamma-ray astronomy. The frequent full-sky survey at sub-GeV with PANGU's large field of view and significantly improved point spread function would provide crucial information to GeV-TeV astrophysics for current/future missions including Fermi, DAMPE, HERD, and CTA, and other multi-wavelength telescopes. |
| نوع الوثيقة: |
book part |
| اللغة: |
English |
| Relation: |
https://archive-ouverte.unige.ch/unige:40657; unige:40657 |
| الاتاحة: |
https://archive-ouverte.unige.ch/unige:40657 |
| Rights: |
info:eu-repo/semantics/restrictedAccess |
| رقم الانضمام: |
edsbas.BAF3F1C3 |
| قاعدة البيانات: |
BASE |