论文标题
产生冠状射流爆发作为Parker太阳能探针（PSP）折返的可能来源
Coronal-Jet-Producing Minifilament Eruptions as a Possible Source of Parker Solar Probe (PSP) Switchbacks
论文作者
论文摘要
Parker太阳能探针（PSP）观察到了近似太阳风的大量快速磁场方向变化。这些功能被称为“折返”，它们的起源是一个谜。但是它们的广泛性质表明，它们可能是由于太阳大气中经常发生的过程而产生的。我们检查了折返起源于冠状喷气机的可能性。最近的工作表明，当光球磁通量取消并形成一个小规模的“微型”通量绳时，会导致许多冠状动力飞机，并与冠状场爆发并重新连接。我们认为，重新连接的爆发的微型通量绳可以表现为一种向外的传播alfvénic波动，随着它在太阳风中移动时，它逐渐变成了日益紧凑的干扰。使用先前的观察到的冠状喷气机的特性，这些冠状射流连接到冠状动脉观察的白光喷头（又称“狭窄CMES”），以及典型的太阳风速值，我们期望冠状射流产生的干扰，可在〜<25 min中造成近距离的PSP，速度接近pssp，速度为<25 min，速度为约〜400 km/s/s/s/s/s/s/s/s。 To consider further the plausibility of this idea, we show that a previously studied series of equatorial latitude coronal jets, originating from the periphery of an active region, generate white-light jets in the outer corona (seen in STEREO/COR2 coronagraph images; 2.5---15 R_sun), and into the inner heliosphere (seen in STEREO/Hi1 heliospheric imager images; 15---84 r_sun）。因此，可以通过产生冠状射流的微型通量绳索可以传播到PSP空间并以折返的形式出现。
The Parker Solar Probe (PSP) has observed copious rapid magnetic field direction changes in the near-Sun solar wind. These features have been called "switchbacks," and their origin is a mystery. But their widespread nature suggests that they may be generated by a frequently occurring process in the Sun's atmosphere. We examine the possibility that the switchbacks originate from coronal jets. Recent work suggests that many coronal jets result when photospheric magnetic flux cancels, and forms a small-scale "minifilament" flux rope that erupts and reconnects with coronal field. We argue that the reconnected erupting minifilament flux rope can manifest as an outward propagating Alfvénic fluctuation that steepens into an increasingly compact disturbance as it moves through the solar wind. Using previous observed properties of coronal jets that connect to coronagraph-observed white-light jets (a.k.a. "narrow CMEs"), along with typical solar wind speed values, we expect the coronal-jet-produced disturbances to traverse near-perihelion PSP in ~<25 min, with a velocity of ~400 km/s. To consider further the plausibility of this idea, we show that a previously studied series of equatorial latitude coronal jets, originating from the periphery of an active region, generate white-light jets in the outer corona (seen in STEREO/COR2 coronagraph images; 2.5---15 R_sun), and into the inner heliosphere (seen in STEREO/Hi1 heliospheric imager images; 15---84 R_sun). Thus it is tenable that disturbances put onto open coronal magnetic field lines by coronal-jet-producing erupting minifilament flux ropes can propagate out to PSP space and appear as switchbacks.
