Using the Intensity Modulation Index to Test Pulsar Radio Emission Models
Using the Intensity Modulation Index to Test Pulsar Radio Emission Models
复制标题
使用强度调制指数测试脉冲星无线电发射模型
DOI：
10.1086/379501
复制
发表时间：
2003
期刊：
影响因子：
--
通讯作者：
J. Gil
中科院分区：
文献类型：
--
作者：
F. Jenet;J. Gil
这封信探讨了通过观察脉冲对脉冲强度调制来测试脉冲星射电发射模型的可能性。研究表明脉冲星的周期、周期导数和强度调制之间的关系是射电脉冲星发射至少一种理论模型的自然结果。有人提出，其他模型也可以预测类似的相关性。这种关系的确切形式将取决于所讨论的模型。因此，对强度调制的观测应该能够确定各种发射模式的有效性。为了寻找预测的依赖关系，研究了一组12颗脉冲星的调制特性。这些数据具有启发性，但它们无法区分三种可能的发射过程。未来的观测将能够证实这些结果，并确定具体的排放模式是否可行。
This Letter explores the possibility of testing pulsar radio emission models by observing pulse-to-pulse intensity modulation. It is shown that a relationship between a pulsar's period, period derivative, and intensity modulation is a natural consequence of at least one theoretical model of radio pulsar emission. It is proposed that other models may also predict a similar correlation. The exact form of the relationship will depend on the model in question. Hence, observations of intensity modulation should be able to determine the validity of the various emission models. In an attempt to search for the predicted dependencies, the modulation properties of a set of 12 pulsars are studied. These data are suggestive, but they are unable to differentiate between three possibilities for the emission process. Future observations will be able to confirm these results and determine whether or not specific emission models are viable.