A long-period, violently variable X-ray source in a young supernova remnant

被引:104
作者
De Luca, A.
Caraveo, P. A.
Mereghetti, S.
Tiengo, A.
Bignami, G. F.
机构
[1] Ist Nazl Astrofis, Ist Astrofis Spaziale & fis Cosm, I-20133 Milan, Italy
[2] UPS, CNRS, Ctr Etud Spatiale Rayonnements, F-31028 Toulouse 4, France
[3] Univ Pavia, Dipartimento Fis Nucl & Teor, I-27100 Pavia, Italy
关键词
D O I
10.1126/science.1129185
中图分类号
O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];
学科分类号
07 ; 0710 ; 09 ;
摘要
Observations with the Newton X-ray Multimirror Mission satellite show a strong periodic modulation at 6.67 +/- 0.03 hours of the x-ray source at the center of the 2000-year-old supernova remnant RCW 103. No fast pulsations are visible. If genetically tied to the supernova remnant, the source could either be an x-ray binary, composed of a compact object and a low-mass star in an eccentric orbit, or an isolated neutron star. In the latter case, the combination of its age and period would indicate that it is a peculiar magnetar, dramatically slowed down, possibly by a supernova debris disc. Both scenarios require nonstandard assumptions about the formation and evolution of compact objects in supernova explosions.
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页码:814 / 817
页数:4
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