Gap is always monitoring the rotation period of ikaros, so this polarization lightcurve has been already corrected for its rotation phase in every 125 msec. The polarization is measured with 2 energy bands … We report the polarization measurement in prompt î³-ray emission of grb 100826a, grb 110301a and grb 110721a with the gamma-ray burst polarimeter (gap) aboard the small solar power sail …

Gap is a small instrument with the net weight of 4. 0 kg, but we will perform reliable polarimetry with the systematic uncertainty of a few % level due to the high symmetric structure and the capability of … In this paper, we shortly introduce the solar power sail satellite “ikaros”, and present the ground-based and also in flight calibration data to ensure our measurements of polarization of prompt emission of … Gap has detected 30 cases of grb so far, and only in the 3 cases above, we detected significant polarization. From other cases we obtained the upper limit of the polarization degree, and we … Gap always monitors the rotation period of ikaros, so this polarization light curve has already been corrected for its rotation phase every 125 ms. The polarization is measured in the two energy bands, …

Gap always monitors the rotation period of ikaros, so this polarization light curve has already been corrected for its rotation phase every 125 ms. The polarization is measured in the two energy bands, …