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Related papers: Magnetic Flux Cancellation in Ellerman Bombs

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High spatial resolution observation of an emerging flux region (EFR) was done using a vector magnetograph and a H-alpha Lyot filtergraph with Domeless Solar Telescope at Hida Observatory on October 22, 2006. In H-alpha wing images, we could…

Astrophysics · Physics 2015-05-13 H. Watanabe , R. Kitai , K. Okamoto , K. Nishida , J. Kiyohara , S. UeNo , M. Hagino , T. T. Ishii , K. Shibata

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

The properties of Ellerman bombs (EBs), small-scale brightenings in the H-alpha line wings, have proved difficult to establish due to their size being close to the spatial resolution of even the most advanced telescopes. Here, we aim to…

Solar and Stellar Astrophysics · Physics 2013-01-09 C. J. Nelson , J. G. Doyle , R. Erdelyi , Z. Huang , M. Madjarska , M. Mathioudakis , S. Mumford , K. Reardon

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

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) seem to be a part of a whole spectrum of phenomena that might have the same underlying physical mechanism, but with observed characteristics which pose a considerable challenge to models. The aim of this study is to…

Solar and Stellar Astrophysics · Physics 2017-05-17 S. Danilovic

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 (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) 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

A spectacular manifestation of solar activity is the appearance of transient brightenings in the far wings of the H$\alpha$ line, known as Ellerman bombs (EBs). Recent observations obtained by the Interface Region Imaging Spectrograph…

Ellerman bombs (EBs) have been widely studied in recent years due to their dynamic, explosive nature and apparent links to the underlying photospheric magnetic field implying that they may be formed by magnetic reconnection in the…

Solar and Stellar Astrophysics · Physics 2015-06-23 C. J. Nelson , E. M. Scullion , J. G. Doyle , N. Freij , R. Erdélyi

The focus of this investigation is to quantify the conversion of magnetic to thermal energy initiated by a quiet Sun cancellation event and to explore the resulting dynamics from the interaction of the opposite polarity magnetic features.…

Solar and Stellar Astrophysics · Physics 2023-03-29 Anjali. J. Kaithakkal , J. M. Borrero , A. Pastor Yabar , J. de la Cruz Rodríguez

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

Burst-like events with signatures in the UV are often observed co-spatial to strong line-of-sight photospheric magnetic fields. Several authors, for example, have noted the spatial relationship between Ellerman bombs (EBs) and Moving…

Solar and Stellar Astrophysics · Physics 2016-08-24 C. J. Nelson , J. G. Doyle , R. Erdelyi

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 (EBs) are short-lived and compact structures that are observed well in the wings of the hydrogen H-alpha line. EBs are also observed in the chromospheric CaII lines and in UV continua. H-alpha line profiles of EBs show a deep…

Solar and Stellar Astrophysics · Physics 2015-06-22 Arkadiusz Berlicki , Petr Heinzel

Ellerman bombs (EBs) are small brightening events in the solar lower atmosphere. By original definition, the main EB's characteristic is the two emission bumps in both wings of chromospheric lines, such as H$\alpha$ and Ca II 8542 {\AA}…

Solar and Stellar Astrophysics · Physics 2017-04-05 C. Fang , Q. Hao , M. D. Ding , Z. Li

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

We study the H$\alpha$ and Ca II 8542 \r{A} line spectra of four typical Ellerman bombs (EBs) in active region NOAA 11765 on 2013 June 6, observed with the Fast Imaging Solar Spectrograph installed at the 1.6 meter New Solar Telescope at…

Solar and Stellar Astrophysics · Physics 2014-08-12 Jie Hong , M. D. Ding , Ying Li , Cheng Fang , Wenda Cao

Recent observations suggest that magnetic flux cancellation may play a crucial role in heating the Sun's upper atmosphere (chromosphere, transition region, corona). Here, we intended to validate an analytic model for magnetic reconnection…

Solar and Stellar Astrophysics · Physics 2020-07-08 Sung-Hong Park
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