2011 Fiscal Year Final Research Report

Polarization Observation for the Crab Nebula in use of hard X-ray polarimeter PHENEX

Research Project

Project/Area Number	21540235
Research Category	Grant-in-Aid for Scientific Research (C)
Allocation Type	Single-year Grants
Section	一般
Research Field	Astronomy
Research Institution	Yamagata University
Principal Investigator	GUNJI Shuichi 山形大学, 理学部, 教授 (70241685)
Co-Investigator(Renkei-kenkyūsha)	MIHARA Tatehiro 理化学研究所, MAXIグループ, 先任研究員 (20260200) SAITO Yoshitaka JAXA, 宇宙科学研究本部大気球観測系, 准教授 (50300702) ANABUKI Naohisa 大阪大学, 理学研究科, 特任研究員 (70403102) HAYASHIDA Kiyoshi 大阪大学, 理学研究科, 准教授 (30222227)
Project Period (FY)	2009 – 2011
Keywords	X線 / ガンマ線 / 偏光 / 検出器
Research Abstract	We have developed hard X-ray polarimeter with high sensitivity. In 2009, we have launched it with balloon from Taiki Station in Hokkaido. There are two aims for this experiment. The first one is to confirm the stable operation of the detector. The other one is to observe polarization of hard X-rays from the Crab Nebula. Unfortunately, the wind condition was bad and the attitude control did not work correctly. Therefore the observation for the Crab Nebula had not been carried out. However, we have accomplished the first aim. From this experiment, we can open the way to develop the polarimeter installed on a satellite.