中文
相关论文

相关论文: Dark jets in solar coronal holes

200 篇论文

Within the quiet Sun corona imaged at 1 MK, much of the field of view consists of diffuse emission that appears to lack the spatial structuring that is so evident in coronal loops or bright points. We seek to determine if these diffuse…

Coronal waves, significant solar phenomena, act as diagnostic tools for scientists studying solar atmosphere properties. Here, we present a novel observation detailing how a coronal wave event, associated with an X5.0 class flare,…

Aims. We analyze coronagraph observations of a polar jet observed by the Sun Earth Connection Coronal and Heliospheric Investigation (SECCHI) instrument suite onboard the Solar TErrestrial RElations Observatory (STEREO) spacecraft. Methods.…

太阳与恒星天体物理 · 物理学 2011-12-13 L. Feng , B. Inhester , J. de Patoul , T. Wiegelmann , W. Q. Gan

Solar coronal jets have been observed in detail since the early 1990s. While it is clear that these jets are magnetically driven, the details of the driving process has recently been updated. Previously it was suspected that the jets were a…

太阳与恒星天体物理 · 物理学 2019-12-06 Alphonse C. Sterling

Solar jets are collimated plasma ejections along magnetic field lines observed in hot (EUV jets) and cool (chromospheric surges) temperature diagnostics. Their trigger mechanisms and the relationship between hot and cool jets are still not…

Space-based observations show that the solar atmosphere from the solar chromosphere to the solar corona is filled with small-scale jets and is linked with small-scale explosions. These jets may be produced by mechanisms similar to that of…

太阳与恒星天体物理 · 物理学 2024-02-20 Kunwar Alkendra Pratap Singh , Keisuke Nishida , Kazunari Shibata

Most of the commonly discussed solar coronal jets are of the type consisting of a single spire extending approximately vertically from near the solar surface into the corona. Recent research supports that eruption of a miniature filament…

太阳与恒星天体物理 · 物理学 2019-02-13 Alphonse C. Sterling , Louise K. Harra , Ronald L. Moore , David A. Falconer

Tidal disruption events (TDEs) are bursts of electromagnetic energy released when supermassive black holes (SMBHs) at the centers of galaxies violently disrupt a star that passes too close. TDEs provide a new window to study accretion onto…

We present a comprehensive study of a series of recurrent jets that occurred at the periphery of the NOAA active region 12114 on 2014 July 7. These jets were found to share the same source region and exhibited rotational motions as they…

太阳与恒星天体物理 · 物理学 2020-01-08 Lei Lu , Li Feng , Ying Li , Dong Li , Zongjun Ning , Weiqun Gan

The young stellar source HH 30 is a textbook example of an ionic optical jet originating from a disk in an edge-on system shown by the HST. It has a remnant envelope in $^{12}$CO observed by ALMA. The optical jet is characterized by its…

太阳与恒星天体物理 · 物理学 2024-02-06 Tsung-Han Ai , Chun-Fan Liu , Hsien Shang , Doug Johnstone , Ruben Krasnopolsky

A common consequence of accretion onto black holes is the formation of powerful, relativistic jets that escape the system. In the case of supermassive black holes at the centres of galaxies this has been known for decades, but for…

高能天体物理现象 · 物理学 2010-01-11 D. M. Russell , R. P. Fender

We performed a 3D radiative MHD simulation of the solar atmosphere. This simulation shows a jet-like feature that shows similarities to the type II spicules observed for the first time with Hinode. Rapid Blueshifted Events (RBEs) on the…

Jet phenomena with a bright loop in their footpoint, called anemone jets, have been observed in the solar corona and chromosphere. These jets are formed as a consequence of magnetic reconnection, and from the scale universality of…

太阳与恒星天体物理 · 物理学 2020-07-22 Yuji Kotani , Kazunari Shibata

Black holes of stellar mass and neutron stars in binary systems are first detected as hard X-ray sources using high-energy space telescopes. Relativistic jets in some of these compact sources are found by means of multiwavelength…

天体物理学 · 物理学 2009-10-31 I. Felix Mirabel , Luis F. Rodriguez

The origin of the solar wind is one of the most important unresolved prob- lems in space and solar physics. We report here the first spectroscopic signatures of the nascent fast solar wind on the basis of observations made by the EUV…

太阳与恒星天体物理 · 物理学 2010-01-12 H. Tian , C. -Y. Tu , E. Marsch , J. -S. He , S. Kamio

We investigate the effect of coronal temperature on the formation process of solar chromospheric jets using two-dimensional magnetohydrodynamic simulations of the region from the upper convection zone to the lower corona. We develop a new…

太阳与恒星天体物理 · 物理学 2015-10-28 H. Iijima , T. Yokoyama

Coronal plumes are narrow, collimated structures that are primarily viewed above the solar poles and in coronal holes in the extreme ultraviolet, but also in sunspots. Open questions remain about plume formation, including the role of…

太阳与恒星天体物理 · 物理学 2025-07-24 Ayla Weitz , Sanjiv K. Tiwari , Gianna Cauzzi , Kevin P. Reardon , Bart De Pontieu

We present a novel approach which produces Dark Matter jets along the rotation axis of Kerr black holes utilizing the Penrose process. The properties of these jets are investigated, as well as their potential to create Dark Matter…

广义相对论与量子宇宙学 · 物理学 2022-06-09 Ottavia Balducci , Stefan Hofmann , Maximilian Koegler

We report on observations of recurrent jets by instruments onboard the Interface Region Imaging Spectrograph (IRIS), Solar Dynamics Observatory (SDO) and Hinode spacecrafts. Over a 4-hour period on July 21st 2013, recurrent coronal jets…

This paper reviews the current state of our understanding of high-speed solar wind acceleration in coronal holes. Observations by SOHO, coupled with interplanetary particle measurements going back several decades, have put strong…

天体物理学 · 物理学 2007-05-23 Steven R. Cranmer