A brief description of observational results from supersoft X-ray detector on board spacecraft Shenzhou-2

Details A brief description of observational results from supersoft X-ray detector on board spacecraft Shenzhou-2 A brief description of observational results from supersoft X-ray detector on board spacecraft Shenzhou-2

Aug 2003

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2003acasn..44..270h&link_type=abstract

Acta Astronomica Sinica, vol. 44, no. 3, p. 270-278

Astronomy and Astrophysics

Astronomy

Instrument: Detector, Method: Observation, Method: Data Processing

Scientific paper

The observational results from super soft x-ray detector (SD) belong to the space astronomy sub-system onboard spacecraft Shenzhou-2 (SZ-2) are briefly described. Cosmic gamma-ray bursts, solar x-ray bursts, high energy charged particles and soft x-ray background radiation are concerned. SD is a proportional counter with thin polypropylene foil window of 50 mm diameter and operates in an energy range between 0.23 --- 3.0 keV divided into six energy channels. Two time resolutions are used: 40 ms for recording the burst event; 520 ms when there are not trigger signal resulting from burst event. The light curves and energy spectra of two cosmic gamma-ray bursts started at 010117/09:37:25.21UT and 010309/12:33:55.692UT are shown in Fig. 1a --- 2b. The results of two solar X-ray bursts started at 010406/19:14:09.11UT and 010520/06:02:12.58UT are shown in Fig. 3a --- 4b. SD was recording the ambient high energy charged particles when there were no burst events and its shutter of window was closed. 110 data sets of high energy charged particles along the orbit of spacecraft have been obtained. The variations of counting rate of such data are shown in Fig.6a, 6b, 8e, 8f and 7 as examples. More than 10 events of particle precipitation induced by solar proton events were also recorded, some such events are shown in Fig.6c---6f and 7. Some soft x-ray background radiation were obtained as shown in Fig.8a---8d when the shutter of window was opened; it is import for processing the data of burst events.

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