论文标题
SMC X射线PULSAR J0058-7218的脉冲无线电发射的Trapum上限
TRAPUM upper limits on pulsed radio emission for SMC X-ray pulsar J0058-7218
论文作者
论文摘要
Trapum合作使用Meerkat望远镜进行了搜索，以搜索位于Supernova Remnant IKT 16中的年轻小型麦哲伦云脉冲Pulsar J0058-7218，此后与XMM-Newton一起发现了X射线。我们报告使用Meerkat的核心菜肴在三个2小时L波段观察中对分散的，脉冲无线电发射的显着检测，在1284 MHz的平均通量密度上，上限为7.0μjy的上限为7.0μjy。这比以前在Parkes L波段观察中搜索此Pulsar的无线电搜索深近7倍。这表明PSR J0058-7218的无线电发射未向地球射击，或者PSR J0058-7218类似于少数具有非常低无线电效率的Pulsar Wind Nebulae系统，例如PSR B0540-6919，大型麦哲伦山脉云斑crab pulsar crab pulsar agogue。我们还搜索了明亮的，分散的，单个无线电脉冲，并在1284 MHz的93 MJY MS上没有候选物。
The TRAPUM collaboration has used the MeerKAT telescope to conduct a search for pulsed radio emission from the young Small Magellanic Cloud pulsar J0058-7218 located in the supernova remnant IKT 16, following its discovery in X-rays with XMM-Newton. We report no significant detection of dispersed, pulsed radio emission from this source in three 2-hour L-band observations using the core dishes of MeerKAT, setting an upper limit of 7.0 μJy on its mean flux density at 1284 MHz. This is nearly 7 times deeper than previous radio searches for this pulsar in Parkes L-band observations. This suggests that the radio emission of PSR J0058-7218 is not beamed towards Earth or that PSR J0058-7218 is similar to a handful of Pulsar Wind Nebulae systems that have a very low radio efficiency, such as PSR B0540-6919, the Large Magellanic Cloud Crab pulsar analogue. We have also searched for bright, dispersed, single radio pulses and found no candidates above a fluence of 93 mJy ms at 1284 MHz.
