English
Related papers

Related papers: Statistical Analysis of Small Ellerman Bomb Events

200 papers

We use high-resolution imaging spectroscopy with the Swedish 1-m Solar Telescope (SST) to study the transient brightenings of the wings of the Balmer Halpha line in emerging active regions that are called Ellerman bombs. Simultaneous…

Solar and Stellar Astrophysics · Physics 2015-06-16 Gregal J. M. Vissers , Luc H. M. Rouppe van der Voort , Robert J. Rutten

Context. Ellerman bombs (EBs) are observational signatures of small-scale magnetic reconnection, key to understanding the lower solar atmosphere. While their role in active regions has been widely studied using the H$\alpha$ line,…

Solar and Stellar Astrophysics · Physics 2026-05-06 I. J. Soler Poquet , C. J. Díaz Baso , A. Sainz Dalda , L. H. M. Rouppe van der Voort , D. Nóbrega-Siverio , R. Joshi

Aims. We investigated the potential of using Hepsilon to diagnose small-scale energetic phenomena such as Ellerman bombs, UV bursts, and small-scale flares. Our focus is to understand the formation of the line and how to use its properties…

Solar and Stellar Astrophysics · Physics 2025-03-27 K. Krikova , T. M. D. Pereira

Ellerman bombs (EBs) and UV bursts are both brightenings related to flux emergence regions and specifically to magnetic flux of opposite polarity that meet in the photosphere. These two reconnection-related phenomena, nominally formed far…

Solar and Stellar Astrophysics · Physics 2019-06-19 V. Hansteen , A. Ortiz , V. Archontis , M. Carlsson , T. M. D. Pereira , J. P. Bjørgen

Ellerman bombs (EBs) have been widely studied over the past two decades; however, only recently have counterparts of these events been observed in the quiet-Sun. The aim of this article is to further understand small-scale quiet-Sun…

Solar and Stellar Astrophysics · Physics 2017-08-16 C. J. Nelson , N. Freij , A. Reid , R. Oliver , M. Mathioudakis , R. Erdélyi

Ellerman bombs (EBs) and Ultraviolet (UV) bursts are common brightening phenomena which are usually generated in the low solar atmosphere of emerging flux regions. In this paper, we have investigated the emergence of an initial un-twisted…

Solar and Stellar Astrophysics · Physics 2021-11-17 Guanchong Cheng , Lei Ni , Yajie Chen , Udo Ziegler , Jun Lin

Ellerman bombs are transient brightenings of the extended wings of the solar Balmer lines in emerging active regions. We describe their properties in the ultraviolet lines sampled by the Interface Region Imaging Spectrograph (IRIS), using…

Solar and Stellar Astrophysics · Physics 2015-10-08 Gregal J. M. Vissers , Luc H. M. Rouppe van der Voort , Robert J. Rutten , Mats Carlsson , Bart De Pontieu

Recent observations by the Interface Region Imaging Spectrograph (IRIS) have revealed pockets of hot gas ($\sim$2--8$\times$10$^{4}$ K) potentially resulting from magnetic reconnection in the partially ionized lower solar atmosphere (IRIS…

Solar and Stellar Astrophysics · Physics 2016-06-21 Hui Tian , Zhi Xu , Jiansen He , Chad Madsen

Ellerman bombs are regions with enhanced Balmer line wing emission and mark magnetic reconnection in the deep solar atmosphere in active regions and quiet Sun. They are often found in regions where opposite magnetic polarities are in close…

Solar and Stellar Astrophysics · Physics 2021-04-14 L. H. M. Rouppe van der Voort , J. Joshi , V. M. J. Henriques , S. Bose

Small-scale Brightenings (SBs) are commonly observed in the transition region that separates the solar chromosphere from the corona. These brightenings, omnipresent in active region patches known as "moss" regions, could potentially…

Solar and Stellar Astrophysics · Physics 2024-10-22 Bhinva Ram , Tanmoy Samanta , Yajie Chen , Alphonse Sterling , Jayant Joshi , Vasyl Yurchyshyn , Lakshmi Pradeep Chitta , Vaibhav Pant

Recent observations from the Interface Region Imaging Spectrograph (IRIS) appear to show impulsive brightenings in high temperature lines, which when combined with simultaneous ground based observations in H$\alpha$, appear co-spatial to…

Solar and Stellar Astrophysics · Physics 2017-02-08 A. Reid , M. Mathioudakis , A. Kowalski , J. G. Doyle , J. C. Allred

We describe a new quiet-Sun phenomenon which we call "Quiet-Sun Ellerman-like Brightenings" (QSEB). QSEBs are similar to Ellerman bombs (EB) in some respects but differ significantly in others. EBs are transient brightenings of the wings of…

Solar and Stellar Astrophysics · Physics 2016-08-10 Luc H. M. Rouppe van der Voort , Robert J. Rutten , Gregal J. M. Vissers

Ellerman bombs are transient brightenings of the wings of the solar Balmer lines that mark reconnection in the photosphere. Ellerman noted in 1917 that he did not observe such brightenings in the Na I D and Mg I b lines. This non-visibility…

Solar and Stellar Astrophysics · Physics 2016-12-20 R. J. Rutten , L. H. M. Rouppe van der Voort , G. J. M. Vissers

High-resolution imaging-spectroscopy movies of solar active region NOAA 10998 obtained with the CRisp Imaging SpectroPolarimeter (CRISP) at the Swedish 1-m Solar Telescope show very bright, rapidly flickering, flame-like features that…

Solar and Stellar Astrophysics · Physics 2015-05-28 Hiroko Watanabe , Gregal Vissers , Reizaburo Kitai , Luc Rouppe van der Voort , Robert J. Rutten

Ultraviolet (UV) bursts and Ellerman bombs (EBs) are small-scale magnetic reconnection events taking place in the highly stratified, low solar atmosphere. It is still not clear whether UV bursts have to be generated at a higher atmospheric…

Solar and Stellar Astrophysics · Physics 2022-09-21 Lei Ni , Guanchong Cheng , Jun Lin

Context. Ellerman bombs (EBs) are short-lived emission features, characterized by extended wing emission in hydrogen Balmer lines. Until now, no distinct signature of EBs has been found in the He I 10830 {\AA} line, and conclusive…

Solar and Stellar Astrophysics · Physics 2017-02-01 Tine Libbrecht , Jayant Joshi , Jaime de la Cruz Rodríguez , Jorrit Leenaarts , Andrés Asensio Ramos

Ellerman bombs are short-lived brightenings of the outer wings of Halpha that occur in active regions with much flux emergence. We point out fads and fallacies in the extensive Ellerman bomb literature, discuss their appearance in various…

Solar and Stellar Astrophysics · Physics 2015-06-15 Robert J. Rutten , Gregal J. M. Vissers , Luc H. M. Rouppe van der Voort , Peter Sütterlin , Nikola Vitas

Ellerman bombs are transient brightenings in the wings of H-alpha 6563 {\AA} that pinpoint photospheric sites of magnetic reconnection in solar active regions. Their partial visibility in the 1600 {\AA} and 1700 {\AA} continua registered…

Solar and Stellar Astrophysics · Physics 2019-06-05 Gregal J. M. Vissers , Luc H. M. Rouppe van der Voort , Robert J. Rutten

Ellerman bombs are bright emission features observed in the wings of H$\alpha$, usually in the vicinity of magnetic concentrations. Here we show that they can also be detected in the Ca II infrared triplet lines, which are easier to…

Ellerman bombs are transient brightenings of the wings of the Balmer lines that uniquely mark reconnection in the solar photosphere. They are also bright in strong Ca II and ultraviolet lines and in ultraviolet continua, but they are not…

Solar and Stellar Astrophysics · Physics 2016-06-01 R. J. Rutten