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Suzaku observation of supernova remnant G332.5-5.6
被引:11
|作者:
Zhu, H.
[1
,2
]
Tian, W. W.
[1
,3
]
Wu, D.
[1
,4
]
机构:
[1] Chinese Acad Sci, Natl Astron Observ, Key Lab Opt Astron, Beijing 100012, Peoples R China
[2] Univ Chinese Acad Sci, Beijing 100049, Peoples R China
[3] Univ Calgary, Dept Phys & Astron, Calgary, AB T2N 1N4, Canada
[4] Beijing Normal Univ, Coll Informat Sci & Technol, Beijing 100875, Peoples R China
关键词:
ISM: supernova remnants;
X-rays: individual: G332.5-5.6;
X-rays: ISM;
RED CLUMP STARS;
X-RAY;
INTERSTELLAR-MEDIUM;
ROSAT OBSERVATIONS;
DISTANCE;
D O I:
10.1093/mnras/stv1534
中图分类号:
P1 [天文学];
学科分类号:
0704 ;
摘要:
We analyse the Suzaku X-ray Imaging Spectrometer data of the central region of supernova remnant G332.5-5.6. The X-ray data are well described by a single non-equilibrium ionization thermal model, vnei, with an absorbing hydrogen column density of 1.4(-0.1)(+0.4) x 10(21) cm(-2). The plasma is characterized by an electron temperature of 0.49(-0.06)(+0.08) keV with subsolar abundances for O (0.58(-0.05)(+0.06) solar value) and Fe (0.72(-0.05)(+0.06) solar value) and slightly overabundance for Mg (1.23(-0.14)(+0.14) solar value). It seems that the central X-ray emission originates from a projection effect or evaporation of residual clouds inside G332.5-5.6. We estimate a distance of 3.0 +/- 0.8 kpc for G332.5-5.6 based on the extinction-distance relation. G332.5-5.6 has an age of 7-9 kyr.
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页码:3470 / 3474
页数:5
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