Timing and spectral properties of PSR B0540-69 observed with BeppoSAX

被引：0
|
作者：
Mineo, T
Cusumano, G
Massaro, E
Nicastro, L
Parmar, AN
Sacco, B
机构：
[1] CNR, Ist Fis Cosm & Applicaz Informat, I-90146 Palermo, Italy
[2] Univ La Sapienza, Unita GIFCO Roma 1, Ist Astron, I-00161 Rome, Italy
[3] European Space Agcy, ESTEC, Dept Space Sci, Div Astrophys, NL-2200 AG Noordwijk, Netherlands
来源：
ASTRONOMY & ASTROPHYSICS | 1999年 / 348卷 / 02期
关键词：
stars : neutron; stars : pulsars : general; stars : pulsars : individual : PSR B0540-69; X-rays : stars;
D O I：
暂无
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
BeppoSAX observed PSR B0540-69 on 1996 October 25-26 during the Science Verification Phase. The pulsar, detected by the imaging LEGS and MECS instruments (0.1-10 keV), shows a characteristic nearly sinusoidal pulse structure with a minor structure on the left side of the maximum. By combining the BeppoSAX measurements with earlier ASCA results we derived a low value of the braking index of 2.10 +/- 0.10. We also investigate the X-ray spectral distribution of the pulsed emission in the energy band (2-10) keV. We find that it can be well represented by a single absorbed power-law with energy index of 0.76 +/- 0.14 and N-H = (3.6 +/- 0.7) x 10(21) cm(-2).
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收藏
页码：519 / 523
页数：5
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