| タイトル | The Stellar X-ray Polarimeter - A focal plane polarimeter for the Spectrum X-Gamma mission |
| 著者（英） | Martin, C.; Hamilton, T.; Shaw, P.; Suniaev, R.; Novick, R.; Weisskopf, M.; Kaaret, P.; Silver, E.; Elsner, R.; Lapshov, I. |
| 著者所属（英） | Columbia Univ.|Lawrence Livermore National Lab.|NASA Marshall Space Flight Center|Academy of Sciences (USSR) |
| 発行日 | 1990-07-01 |
| 言語 | eng |
| 内容記述 | This paper describes an X-ray polarimeter that will be flown on the Spectrum X-Gamma mission. The instrument exploits three distinct physical processes to measure polarization: Bragg reflection from a graphite crystal, Thomson scattering from a metallic lithium target, and photoemission from a cesium iodide photocathode. These three methods allow polarization measurements over an energy band from 0.3 to 12 keV. The polarimeter will make possible sensitive measurements of several hundred known X-ray sources. X-ray polarization measurements will make it possible to constrain the geometry of gas flow in X-ray binaries, identify nonthermal emission in supernova remnants, test current models for X-ray emission in radio pulsars, determine the radiation mechanisms in active galactic nuclei, and search for inertial frame dragging (Lense-Thirring effect) around the putative black hole in Cygnus X-1. |
| NASA分類 | INSTRUMENTATION AND PHOTOGRAPHY |
| レポートNO | 90A45946 |
| 権利 | Copyright |
| URI | https://repository.exst.jaxa.jp/dspace/handle/a-is/354478 |
|
