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Related papers: SolO campfires in SDO images

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Context. Accurate detections of frequent small-scale extreme ultraviolet (EUV) brightenings are essential to the investigation of the physical processes heating the corona. Aims. We detected small-scale brightenings, termed campfires, using…

Observations of a large solar flare of December 13, 2006, using Solar Optical Telescope (SOT) on Hinode spacecraft revealed high-frequency oscillations excited by the flare in the sunspot chromosphere. These oscillations are observed in the…

Astrophysics · Physics 2009-11-13 A. G. Kosovichev , T. Sekii

An overview is given about recent developments and results of comprehensive simulations of magneto-convective processes in the near-surface layers and photosphere of the Sun. Simulations now cover a wide range of phenomena, from whole…

Solar and Stellar Astrophysics · Physics 2015-06-12 Manfred Schüssler

The magnetic fields and dynamical processes in the solar polar regions play a crucial role in the solar magnetic cycle and in supplying mass and energy to the fast solar wind, ultimately being vital in controlling solar activities and…

We have compiled a catalog of solar flares as observed by the Extreme ultraviolet Imaging Telescope (EIT) aboard the Solar and Heliospheric Observatory (SOHO) spacecraft and the GOES spacecraft over a span from 1997 to 2010. During…

Solar and Stellar Astrophysics · Physics 2020-08-05 Sumanth A. Rotti , Petrus C. H. Martens , Berkay Aydin

We report high-resolution, high-cadence observations of five small-scale coronal jets in an on-disk quiet Sun region observed with Solar Orbiter's EUI/\hri\ in 174 \AA. We combine the \hri\ images with the EUV images of SDO/AIA and…

Solar and Stellar Astrophysics · Physics 2023-02-01 Navdeep K. Panesar , Viggo H. Hansteen , Sanjiv K. Tiwari , Mark C. M. Cheung , David Berghmans , Daniel Müller

I provide a summary of the current theoretical knowledge of solar neutrino fluxes as derived from precise solar models.

High Energy Physics - Phenomenology · Physics 2009-11-10 John N. Bahcall

A diurnal varying haze layer at the bright spots of Occator on dwarf planet Ceres has been reported from images of the Dawn Framing Camera. This finding is supported by ground-based observations revealing diurnal albedo changes at Occator's…

Earth and Planetary Astrophysics · Physics 2017-01-23 G. Thangjam , M. Hoffmann , A. Nathues , J. -Y. Li , T. Platz

The increased amount of information provided by ongoing missions such as the Solar Dynamics Observatory (SDO) represents a great challenge for the understanding of basic questions such as the internal structure of sunspots and how they…

Solar and Stellar Astrophysics · Physics 2013-10-29 R. Gafeira , C. C. Fonte , M. A. Pais , J. Fernandes

This work provides additional evidence on the involvement of exotic particles like axions and/or other WISPs, following recent measurements during the quietest Sun and flaring Sun. Thus, SPHINX mission observed a minimum basal soft X-rays…

Solar and Stellar Astrophysics · Physics 2011-12-20 K. Zioutas , M. Tsagri , Y. Semertzidis , T. Papaevangelou , E. Georgiopoulou , A. Gardikiotis , T. Dafni

Several coronal bright points identified in a quiet region of the Sun from SOHO/EIT Fe XII images are found to have a time evolution from birth to decay which is extremely well correlated with the rise and fall of magnetic flux as…

Astrophysics · Physics 2009-10-31 Paweł Preś , Kenneth J. H. Phillips

The solar wind consists of continuous streams of charged particles that escape into the heliosphere from the Sun, and is split into fast and slow components, with the fast wind emerging from the interiors of coronal holes. Near the ecliptic…

Solar and Stellar Astrophysics · Physics 2022-11-28 L. P. Chitta , D. B. Seaton , C. Downs , C. E. DeForest , A. K. Higginson

In recent years solar oscillations have been studied in great detail, both observationally and theoretically; so, perhaps, the Sun currently is the best understood pulsating star. The observational studies include long, almost uninterrupted…

Solar and Stellar Astrophysics · Physics 2010-02-01 A. G. Kosovichev

We present a new data product, called Space-Weather MDI Active Region Patches (SMARPs), derived from maps of the solar surface magnetic field taken by the Michelson Doppler Imager (MDI) aboard the Solar and Heliospheric Observatory (SoHO).…

Solar and Stellar Astrophysics · Physics 2021-09-21 Monica G. Bobra , Paul J. Wright , Xudong Sun , Michael J. Turmon

Understanding and monitoring the complex and dynamic processes of the Sun is important for a number of human activities on Earth and in space. For this reason, NASA's Solar Dynamics Observatory (SDO) has been continuously monitoring the…

To study and monitor the Sun and its atmosphere, various space missions have been launched in the past decades. With the rapid improvement in technology and different mission requirements, the data products are subject to constant change.…

Aims: This paper aims to demonstrate the importance of short-exposure extreme ultraviolet (EUV) observations of solar flares in the study of particle acceleration, heating and energy partition in flares. This work highlights the…

We update the SOHO/SWAN H Lyman-alpha brightness analysis to cover the 1996-2008 time interval. A forward model applied to the intensity maps provides the latitude and time dependence of the interstellar Hydrogen ionisation rate over more…

Solar and Stellar Astrophysics · Physics 2010-03-23 Rosine Lallement , Eric Quemerais , Philippe Lamy , Jean-Loup Bertaux , Stephane Ferron , Walter Schmidt

The rapid growth of solar data is driving changes in the typical workflow and algorithmic approach to solar data analysis. We present recently deployed tools to aid this evolution and layout the path for future development. The majority of…

Instrumentation and Methods for Astrophysics · Physics 2018-07-02 Neal Hurlburt , Sam Freeland , Ryan Timmons