| タイトル | ROSAT Observations of a New X-ray Transient in the Small Magellanic Cloud |
| 本文（外部サイト） | http://hdl.handle.net/2060/19980236420 |
| 著者（英） | Woo, Jonathan W.; Clark, George W.; Remillard, Ronald A. |
| 著者所属（英） | Massachusetts Inst. of Tech. |
| 発行日 | 1997-01-10 |
| 言語 | eng |
| 内容記述 | We describe ROSAT observations of a new X-ray transient and its probable optical companion in the Small Magellanic Cloud, The transient, designated RX J0117.6-7330, appeared at a position approx. 5 southeast of the X-ray pulsar, SMC X-1, in 1992 October 1-2 PSPC observations centered on the pulsar. It was detected again in a similar observation 246 days later at a counting rate diminished by a factor of 270, which corresponds to an average e-folding decay time of 44 days. No periodic pulsations have been detected. The average 1992 flux level would be produced by a source radiating isotropically with a luminosity of 1.6 x 10(exp 37) (D/50 kpc)(exp 2) ergs 1/s in the energy range 0.2-2.5 keV. The 5 radius positional error circle includes the probable optical counterpart in the form of a magnitude V = 14.2 star with the spectral characteristics of type Be. |
| NASA分類 | Space Radiation |
| レポートNO | NASA/CR-1997-207842
NAS 1.26:207842 |
| 権利 | Copyright, Distribution as joint owner in the copyright |
| URI | https://repository.exst.jaxa.jp/dspace/handle/a-is/97458 |
