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Related papers: Ellerman Bombs at high resolution: II. Visibility,…

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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

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

The emergence of magnetic flux into the solar atmosphere produces, among other phenomena, Ellerman bombs (EBs), which are observed in H alpha and are due to magnetic reconnection in the photosphere below the chromospheric canopy. Signs of…

Solar and Stellar Astrophysics · Physics 2020-01-15 Ada Ortiz , Viggo H. Hansteen , Daniel Nóbrega-Siverio , Luc Rouppe van der Voort

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

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

Magnetic reconnection in the deep solar atmosphere can give rise to enhanced emission in the Balmer hydrogen lines, a phenomenon referred to as Ellerman bombs. To effectively trace magnetic reconnection below the canopy of chromospheric…

Solar and Stellar Astrophysics · Physics 2023-04-26 L. Rouppe van der Voort , M. van Noort , J. de la Cruz Rodriguez

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 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

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 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

The presence of photospheric magnetic reconnection has long been thought to give rise to short and impulsive events, such as Ellerman bombs (EBs) and Type II spicules. In this article, we combine high-resolution, high-cadence observations…

Solar and Stellar Astrophysics · Physics 2015-06-17 C. J. Nelson , S. Shelyag , M. Mathioudakis , J. G. Doyle , M. S. Madjarska , H. Uitenbroek , R. Erdélyi

Ellerman bombs (EBs) are small-scale intense brightenings in H$\alpha$ wing images, which are generally believed to be signatures of magnetic reconnection events around the temperature minimum region of the solar atmosphere. They have a…

Solar and Stellar Astrophysics · Physics 2019-05-01 Yajie Chen , Hui Tian , Hardi Peter , Tanmoy Samanta , Vasyl Yurchyshyn , Haimin Wang , Wenda Cao , Linghua Wang , Jiansen He

Ellerman Bombs (EBs) are thought to arise as a result of photospheric magnetic reconnection. We use data from the Swedish 1-m Solar Telescope (SST), to study EB events on the solar disk and at the limb. Both datasets show that EBs are…

Solar and Stellar Astrophysics · Physics 2015-06-26 A. Reid , M. Mathioudakis , E. Scullion , J. G. Doyle , S. Shelyag , P. Gallagher

Ellerman bombs and UV bursts are transient brightenings that are ubiquitously observed in the lower atmospheres of active and emerging flux regions. Here we present inversion results of SST/CRISP and CHROMIS, as well as IRIS data of such…

Solar and Stellar Astrophysics · Physics 2019-07-10 G. J. M. Vissers , J. de la Cruz Rodriguez , T. Libbrecht , L. H. M. Rouppe van der Voort , G. B. Scharmer , M. Carlsson

Ellerman bombs (EBs) are a kind of solar activities that is suggested to occur in the lower atmosphere. Recent observations using the Interface Region Imaging Spectrograph (IRIS) show connections of EBs and IRIS bombs (IBs), implying that…

Solar and Stellar Astrophysics · Physics 2017-04-03 Jie Hong , M. D. Ding , Wenda Cao

Ellerman bombs (EBs) are observable signatures of photospheric small-scale magnetic reconnection events. The reliable automatic detection of EBs would enable the study of the impact of magnetic reconnection on the Sun's dynamics. We aim to…

Solar and Stellar Astrophysics · Physics 2025-07-02 I. J. Soler Poquet , C. J. Díaz Baso , L. H. M. Rouppe van der Voort , G. J. M. Vissers

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

Ellerman bombs (EBs) are tiny brightenings often observed near sunspots. The most impressive characteristic of the EB spectra is the two emission bumps in both wings of the H$\alpha$ and \ion{Ca}{II} 8542 {\AA} lines. High-resolution…

Solar and Stellar Astrophysics · Physics 2015-09-16 Z. Li , C. Fang , Y. Guo , P. F. Chen , Z. Xu , W. Cao

Ellerman bombs (EBs) are small and short-lived magnetic reconnection events in the lower solar atmosphere, most commonly reported in the line wings of the H$\alpha$ line. These events are thought to play a role in heating the solar…

Solar and Stellar Astrophysics · Physics 2025-09-12 A. Faryad , A. G. M. Pietrow , M. Verma , C. Denker

Magnetic reconnection in the deep solar atmosphere can give rise to enhanced emission in the Balmer hydrogen lines, a phenomenon referred to as Ellerman bombs. Recent high quality H$\beta$ observations indicate that Ellerman bombs are more…

Solar and Stellar Astrophysics · Physics 2022-08-10 Jayant Joshi , Luc H. M. Rouppe van der Voort
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