THE SPATIAL-DISTRIBUTION OF PULSARS AND THE SPIRAL STRUCTURE OF THE GALAXY

被引：8

作者：

RAMACHANDRAN, R

DESHPANDE, AA

机构：

[1] Raman Research Institute, Bangalore

来源：

JOURNAL OF ASTROPHYSICS AND ASTRONOMY | 1994年 / 15卷 / 01期

关键词：

PULSARS; VELOCITIES; GALAXY; STRUCTURE; DYNAMICS; STARS; END STATES;

D O I：

10.1007/BF03010405

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We have looked for and found a possible spatial correlation between the present pulsar distribution and the estimated locations of the spiral arms at earlier epochs. Through a detailed statistical analysis we find a significant correlation between the present distribution of pulsars and the mass distribution (in the spiral arms) expected about 60 Myr ago for a corotation resonance radius of 14 kpc. We discuss the implications of this correlation for the minimum mass of the progenitors of pulsars. Interpreting the spread in the locations of pulsars with respect to the past locations of the spiral arms as predominantly due to their space velocities, we derive an average velocity for the pulsar population.

引用

页码：69 / 83

页数：15

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