论文标题
与ASKAP射电望远镜的星际闪烁的首次测量：对太空天气的影响
First measurement of interplanetary scintillation with the ASKAP radio telescope: implications for space weather
论文作者
论文摘要
我们报告使用澳大利亚平方公里阵列探路者（ASKAP）射电望远镜测量行星际闪烁（IPS）。尽管此概念验证观察仅在单个来源上仅使用了3秒钟的数据，但这仍然是一个重要的结果，因为ASKAP的广泛视野以及其在太阳10度以内的这种验证的验证，这意味着Askap的潜力超过了Prife and The Wither the Field的潜力，但在此之后，这一范围超过了，但此外，这一领域的范围已经扩大了。 地球。我们描述了概念观察的证明，并从测量的噪声参数中推断出，以确定使用完整的视野可以从更长的观察中收集哪些信息。我们证明，通过采用“机会目标”（也是）方法，在望远镜中检测到白光冠状动脉中的CME触发了望远镜，大多数行星际CME可以通过延长范围<$ <$ 30的$ <$ 30。因此，它与Colocococated Murchison Wideffield阵列相互互补，这是一种低频仪器，非常适合观察到延伸$ 20 $ 20度。
We report on a measurement of interplanetary scintillation (IPS) using the Australian Square Kilometre Array Pathfinder (ASKAP) radio telescope. Although this proof-of-concept observation utilised just 3 seconds of data on a single source, this is nonetheless a significant result, since the exceptional wide field of view of ASKAP, and this validation of its ability to observe within 10 degrees of the Sun, mean that ASKAP has the potential to observe an interplanetary coronal mass ejection (CME) after it has expanded beyond the field of view of white light coronagraphs, but long before it has reached the Earth. We describe our proof of concept observation and extrapolate from the measured noise parameters to determine what information could be gleaned from a longer observation using the full field of view. We demonstrate that, by adopting a `Target Of Opportunity' (TOO) approach, where the telescope is triggered by the detection of a CME in white-light coronagraphs, the majority of interplanetary CMEs could be observed by ASKAP while in an elongation range $<$30 degrees. It is therefore highly complementary to the colocated Murchison Widefield Array, a lower-frequency instrument which is better suited to observing at elongations $>$20 degrees.
