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Related papers: Hi-C 2.1 Observations of Reconnection Nanojets

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Solar nanojets are small-scale jets generated by component magnetic reconnection, characterized by collimated plasma motion perpendicular to the reconnecting magnetic field lines. As an indicator of nanoflare events, they are believed to…

Solar and Stellar Astrophysics · Physics 2025-04-30 Yuhang Gao , Hui Tian , David Berghmans , Yadan Duan , Tom Van Doorsselaere , Hechao Chen , Emil Kraaikamp

Magnetic reconnection is a proposed mechanism for nanojets associated with coronal heating. We investigate the characteristics of reconnection-driven nanojets just before and during a prominence eruption using the High Resolution Imager…

Solar and Stellar Astrophysics · Physics 2025-10-30 Tarhik Wallace , Patrick Antolin

The heating of the solar chromosphere and corona is a long-standing puzzle in solar physics. Hinode observations show the ubiquitous presence of chromospheric anemone jets outside sunspots in active regions. They are typically 3 to 7 arc…

The recent discovery of nanojets by Antolin et al. (2021) represents magnetic reconnection in a braided field, thus clearly identifying the reconnection-driven nanoflares. Due to their small scale (500 km in widths, 1500 km in lengths) and…

Solar and Stellar Astrophysics · Physics 2022-08-17 A. Ramada C. Sukarmadji , Patrick Antolin , James A. McLaughlin

Observations of reconnection jets in the solar corona are emerging as a possible diagnostic to study highly elusive coronal heating. Such nanojets can be observed in coronal loops and they have been linked to nanoflares. However, while…

Solar and Stellar Astrophysics · Physics 2021-12-22 Paolo Pagano , Patrick Antolin , Antonio Petralia

Coronal jets are short-lived eruptive features commonly observed in polar coronal holes and are thought to play a key role in the transfer of mass and energy into the solar corona. We describe unique contemporaneous observations of a…

We report on observations of a solar jet propagating along coronal loops taken by the Solar Dynamics Observatory (SDO), the Interface Region Imaging Spectragraph (IRIS) and 1-m New Vacuum Solar Telescope (NVST). The ejecta of the jet…

Solar and Stellar Astrophysics · Physics 2020-07-09 Zhenghua Huang , Qingmin Zhang , Lidong Xia , Bo Li , Zhao Wu , Hui Fu

Reconnection-driven nanoflares are widely considered a leading mechanism for coronal-loop heating, but their direct fingerprints in the tenuous coronal plasma remain elusive. The recently discovered coronal nanojets offer a potential probe…

Outflows perpendicular to the guide field are believed to be a possible signature of magnetic reconnection in the solar corona and specifically a way to detect the occurrence of ubiquitous small-angle magnetic reconnection. The aim of this…

Solar and Stellar Astrophysics · Physics 2025-03-05 G. Cozzo , P. Pagano , F. Reale , P. Testa , A. Petralia , J. Martinez-Sykora , V. Hansteen , B. De Pontieu

Recent observations reveal small-scale reconnection-driven plasma ejections, often termed nanojets, triggered by magnetic field interactions at slight misalignment angles. These fast, collimated plasma ejections are $\sim$1.5 Mm long and…

We report the smallest coronal jets ever observed in the quiet Sun with recent high resolution observations from the High Resolution Telescopes (HRI-EUV and HRI-Ly{\alpha}) of the Extreme Ultraviolet Imager (EUI) onboard Solar Orbiter. In…

Solar and Stellar Astrophysics · Physics 2021-09-29 Zhenyong Hou , Hui Tian , David Berghmans , Hechao Chen , Luca Teriaca , Udo Schuhle , Yuhang Gao , Yajie Chen , Jiansen He , Linghua Wang , Xianyong Bai

Context: Hot coronal jets are a basic observed feature of the solar atmosphere whose physical origin is still being actively debated. Aims: We study six recurrent jets occurring in the active region NOAA 12644 on April 04, 2017. They are…

Recent observations of fast and bursty ``nanojets'' suggest novel diagnostics of nanoflare heating in the solar corona. The aim of this work is to investigate the presence and properties of reconnection outflows, similar to observed…

Solar and Stellar Astrophysics · Physics 2025-11-13 Gabriele Cozzo , Paola Testa , Juan Martinez-Sykora , Paolo Pagano , Fabio Reale , Franco Rappazzo , Viggo Hansteen , Bart De Pontieu

High spatial- and temporal-resolution images of coronal hole regions show a dynamical environment where mass flows and jets are frequently observed. These jets are believed to be important for the coronal heating and the acceleration of the…

Solar and Stellar Astrophysics · Physics 2013-10-31 K. Chandrashekhar , A. Bemporad , D. Banerjee , G. R. Gupta , L. Teriaca

Intensity bursts in ultraviolet (UV) to X-ray wavelengths and plasma jets are typical signatures of magnetic reconnection and the associated impulsive heating of the solar atmospheric plasma. To gain new insights into the process,…

Solar and Stellar Astrophysics · Physics 2021-12-15 L. P. Chitta , S. K. Solanki , H. Peter , R. Aznar Cuadrado , L. Teriaca , U. Schühle , F. Auchère , D. Berghmans , E. Kraaikamp , S. Gissot , C. Verbeeck

The solar corona is highly structured by bunches of magnetic field lines forming either loops, or twisted flux ropes representing prominences/filaments, or very dynamic structures such as jets. The aim of this paper is to understand the…

Solar and Stellar Astrophysics · Physics 2024-12-13 Garima Karki , Brigitte Schmieder , Pooja Devi , Ramesh Chandra , Nicolas Labrosse , Reetika Joshi , Bernard Gelly

To better understand the characteristics, driving mechanisms, and potential heating contributions of chromospheric jets, we analyze two contrasting types: one originating from within the sunspot penumbra (inside jets), and the other…

Solar and Stellar Astrophysics · Physics 2025-10-14 Guotang Wu , Xiaoli Yan , Zhike Xue , Jincheng Wang , Zhe Xu , Liheng Yang , Yian Zhou , Liping Yang , Xinsheng Zhang , Qifan Dong , Zongyin Wu

Using high-resolution photospheric and chromospheric observations taken by the Goode Solar Telescope (GST), we studied two groups of bidirectional plasma jets occurring in active region NOAA 13110. Supplementary observations are also…

Solar and Stellar Astrophysics · Physics 2026-05-19 Yangyu Liu , Jinhua Shen , Xu Yang , Shuai Gu , Jianping Li , Haisheng Ji

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

Hinode discovered a beautiful giant jet with both cool and hot components at the solar limb on 2007 February 9. Simultaneous observations by the Hinode SOT, XRT, and TRACE 195 satellites revealed that hot (5x10^6 K) and cool (10^4 K) jets…

Astrophysics · Physics 2011-02-11 N. Nishizuka , M. Shimizu , T. Nakamura , K. Otsuji , T. J. Okamoto , Y. Katsukawa , K. Shibata
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