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Related papers: Observations of instability-driven nanojets

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Using data obtained by the high resolution CRisp Imaging SpectroPolarimeter instrument on the Swedish 1-m Solar Telescope, we investigate the dynamics and stability of quiet-Sun chromospheric jets observed at disk center. Small-scale…

Solar and Stellar Astrophysics · Physics 2016-10-26 D. Kuridze , T. V. Zaqarashvili , V. Henriques , M. Mathioudakis , F. P. Keenan , A. Hanslmeier

Nanoflares, which are consequences of braids in tangled magnetic fields, are an important candidate to heat the solar corona to million degrees. However, their observational evidence is sparse and many of their observational characteristics…

Solar and Stellar Astrophysics · Physics 2025-04-18 Xiuhui Zuo , Zhenghua Huang , Hengyuan Wei , Chao Zhang , Boyu Sun , Youqian Qi , Hui Fu , Weixin Liu , Mingzhe Sun , Ming Xiong , Lidong Xia

Recent space based observations of the Sun revealed that magnetic reconnection is ubiquitous in the solar atmosphere, ranging from small scale reconnection (observed as nanoflares) to large scale one (observed as long duration flares or…

Solar and Stellar Astrophysics · Physics 2016-07-01 Kazunari Shibata , Shinsuke Takasao

HH 212 is a nearby (400 pc) highly collimated protostellar jet powered by a Class 0 source in Orion. We have mapped the inner 80" (~ 0.16 pc) of the jet in SiO (J=8-7) and CO (J=3-2) simultaneously at ~ 0.5 resolution with the Atacama…

Astrophysics of Galaxies · Physics 2015-06-11 Chin-Fei Lee , Naomi Hirano , Qizhou Zhang , Hsien Shang , Paul T. P. Ho , Yosuke Mizuno

We present the results of a set of three-dimensional numerical simulations of magnetic flux emergence from below the photosphere into the corona that include a uniform and horizontal coronal magnetic field mimicking a pre-existing…

Astrophysics · Physics 2009-11-10 K. Galsgaard , F. Moreno-Insertis , V. Archontis , A. Hood

We present observational analysis of two successive two-sided loop jets observed by the ground-based New Vacuum Solar Telescope (NVST) and the space-borne Solar Dynamics Observatory ( SDO). The two successive two-sided loop jets manifested…

Solar and Stellar Astrophysics · Physics 2017-12-27 Zhanjun Tian , Yu Liu , Yuandeng Shen , Abouazza Elmhamdi , Jiangtao Su , Ying D. Liu , Ayman. S. Kordi

Using high spatial and temporal data from the New Vacuum Solar Telescope (NVST) and the Solar Dynamics Observatory (SDO), we present unambiguous observations of recurrent two-sided loop jets caused by magnetic reconnection between erupting…

Solar and Stellar Astrophysics · Physics 2020-01-08 Bo Yang , Jiayan Yang , Yi Bi , Zhe Xu , Junchao Hong , Haidong Li , Hechao Chen

Current analytical and numerical modelling suggest the existence of ubiquitous thin current sheets in the corona that could explain the observed heating requirements. On the other hand, new high resolution observations of the corona…

Solar and Stellar Astrophysics · Physics 2015-06-19 P. Antolin , T. Yokoyama , T. Van Doorsselaere

Recent IRIS observations have revealed a prevalence of intermittent small-scale jets with apparent speeds of 80 - 250 km s$^{-1}$, emanating from small-scale bright regions inside network boundaries of coronal holes. We find that these…

Solar and Stellar Astrophysics · Physics 2016-04-22 Nancy Narang , Rebecca T. Arbacher , Hui Tian , Dipankar Banerjee , Steven R. Cranmer , Ed E. DeLuca , Sean McKillop

Small, impulsive jets commonly occur throughout the solar corona, but are especially visible in coronal holes. Evidence is mounting that jets are part of a continuum of eruptions that extends to much larger coronal mass ejections and…

Solar and Stellar Astrophysics · Physics 2018-02-28 Pankaj Kumar , Judith T. Karpen , Spiro K. Antiochos , Peter F. Wyper , C. Richard DeVore , Craig E. DeForest

Magnetic reconnection is a key mechanism involved in solar eruptions and is also a prime possibility to heat the low corona to millions of degrees. Here, we present ultra-high-resolution extreme ultraviolet observations of persistent…

We present high-resolution, high-cadence observations of six, fine-scale, on-disk jet-like events observed by the High-resolution Coronal Imager 2.1 (Hi-C 2.1) during its sounding-rocket flight. We combine the Hi-C 2.1 images with images…

We present a multi-wavelength analysis of two flare-related jets on November 13, 2014, using data from SDO/AIA, RHESSI, Hinode/XRT, and IRIS. Unlike most coronal jets where hard X-ray (HXR) emissions are usually observed near the jet base,…

Solar and Stellar Astrophysics · Physics 2022-07-13 Yixian Zhang , Sophie Musset , Lindsay Glesener , Navdeep Panesar , Gregory Fleishman

The magnetic breakout model, in which reconnection in the corona leads to destabilization of a filament channel, explains numerous features of eruptive solar events, from small-scale jets to global-scale coronal mass ejections (CMEs). The…

Solar and Stellar Astrophysics · Physics 2021-03-17 Pankaj Kumar , Judith T. Karpen , Spiro K. Antiochos , Peter F. Wyper , C. Richard DeVore , Benjamin J. Lynch

Counter-streaming flows in a small (100" -long) solar filament/filament channel are directly observed in high-resolution SDO/AIA EUV images of a region of enhanced magnetic network. We combine images from SDO/AIA, SDO/HMI and IRIS to…

Solar and Stellar Astrophysics · Physics 2020-07-01 Navdeep K. Panesar , Sanjiv K. Tiwari , Ronald L. Moore , Alphonse C. Sterling

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…

Solar and Stellar Astrophysics · Physics 2019-12-06 Alphonse C. Sterling

A small blowout jet was observed at the boundary of the south polar coronal hole on 2011 February 8 at around 21:00 UT. Images from the Atmospheric Imaging Assembly (AIA) on board the Solar Dynamics Observatory (SDO) revealed an expanding…

Solar and Stellar Astrophysics · Physics 2015-06-18 Peter R. Young , Karin Muglach

We present spectroscopic and imaging observations of small-scale reconnection events on the Sun. Using the Interface Region Imaging Spectrograph (IRIS) observations, one reconnection event is first detected as IRIS jets with fast…

Solar and Stellar Astrophysics · Physics 2018-07-25 Dong Li , Leping Li , Zongjun Ning

The role of interchange reconnection as a drive mechanism for the solar wind is explored by solving the global magnetic-field-aligned equations describing wind acceleration. Boundary conditions in the low corona, including a…

Solar and Stellar Astrophysics · Physics 2023-08-16 J. F. Drake , S. D. Bale , M. Swisdak , N. E. Raouafi , M. Velli

Multiwavelength observations of the propagating disturbances (PDs), discovered by Atmospheric Imaging Assembly (AIA) onboard Solar Dynamics Observatory (SDO), are analyzed to determine its driving mechanism and physical nature. Two magnetic…

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