A radio continuum study of the Magellanic Clouds, VI. Discrete sources common to radio and X-ray surveys of the Magellanic Clouds
A radio continuum study of the Magellanic Clouds, VI. Discrete sources common to radio and X-ray surveys of the Magellanic Clouds
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麦哲伦星云的射电连续谱研究，VI。
DOI：
10.1051/aas:1998418
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发表时间：
1998
期刊：
影响因子：
--
通讯作者：
J. Lazendic
中科院分区：
文献类型：
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作者：
M. Filipović;W. Pietsch;R. Haynes;G. White;Paul A. Jones;R. Wielebinski;U. Klein;K. Dennerl;P. Kahabka;J. Lazendic
通过比较Parkes望远镜射电巡天与X射线ROSAT全天巡天（RASS），我们在大麦哲伦星云（LMC）中发现了71个离散的射电和X射线发射源。这71个源主要是超新星遗迹（SNR）和SNR候选源（36个）以及背景源（27个）。对于六个来源，我们没有提出鉴定和其他两个H II区域。无线电和X射线源的源强度比较显示出非常小的相关性，但我们注意到，在无线电和X射线频率上最强的SNR是来自第一星群的年轻SNR。提出了六种新的LMC SNR候选。从SNRs的无线电通量密度，我们估计的SNR出生率为每100（20）年和恒星形成率（SFR）为0：7（0：2）百万年1。对小麦哲伦云（SMC）进行了类似的比较，但我们使用的不是RASS，而是ROSAT位置敏感比例计数器（PSPC）的定点观测。通过比较，Parkes电台和ROSAT PSPC调查之间有27个共同来源。两
By comparing Parkes telescope radio surveys with the X-ray ROSAT All-Sky Survey (RASS) we have found 71 discrete sources of both radio and X-ray emission in the Large Magellanic Cloud (LMC). These 71 sources are mainly supernova remnants (SNRs) and SNR candi- dates (36), and background sources (27). For six of the sources we have no proposed identication and the other two are H ii regions. A source-intensity comparison of the radio and X-ray sources shows very little correlation, but we note that the strongest SNRs at both radio and X-ray frequencies are young SNRs from Population I. Six new LMC SNR candidates are proposed. From the radio flux density of the SNRs we have estimated the SNR birth rate to be one every 100 (20) yr and the star-formation rate (SFR) to be 0: 7( 0 :2) M yr 1 . A similar comparison was undertaken for the Small Magellanic Cloud (SMC), but instead of the RASS we used a roster of pointed observations made with the ROSAT Position Sensitive Proportional Counter (PSPC). This comparison resulted in 27 sources in common be- tween the Parkes radio and ROSAT PSPC surveys. Two