Search Results - "Schrijver, Carolus J."

Testing the Solar Activity Paradigm in the Context of Exoplanet Transits by Schrijver, Carolus J.

“…Transits of exoplanets across cool stars contain blended information about structures on the stellar surface and about the planetary body and atmosphere. To…”
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THE NONPOTENTIALITY OF CORONAE OF SOLAR ACTIVE REGIONS, THE DYNAMICS OF THE SURFACE MAGNETIC FIELD, AND THE POTENTIAL FOR LARGE FLARES by Schrijver, Carolus J.

“…ABSTRACT Flares and eruptions from solar active regions (ARs) are associated with atmospheric electrical currents accompanying distortions of the coronal field…”
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Extreme solar events by Cliver, Edward W., Schrijver, Carolus J., Shibata, Kazunari, Usoskin, Ilya G.

“…We trace the evolution of research on extreme solar and solar-terrestrial events from the 1859 Carrington event to the rapid development of the last twenty…”
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The Characteristics of Solar X-Class Flares and CMEs: A Paradigm for Stellar Superflares and Eruptions? by Harra, Louise K., Schrijver, Carolus J., Janvier, Miho, Toriumi, Shin, Hudson, Hugh, Matthews, Sarah, Woods, Magnus M., Hara, Hirohisa, Guedel, Manuel, Kowalski, Adam, Osten, Rachel, Kusano, Kanya, Lueftinger, Theresa

“…This paper explores the characteristics of 42 solar X-class flares that were observed between February 2011 and November 2014, with data from the Solar…”
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Sun-as-a-star Spectral Irradiance Observations of Transiting Active Regions by Toriumi, Shin, Airapetian, Vladimir S., Hudson, Hugh S., Schrijver, Carolus J., Cheung, Mark C. M., DeRosa, Marc L.

“…Major solar flares are prone to occur in active-region (AR) atmospheres associated with large, complex, dynamically evolving sunspots. This points to the…”
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A Critical Assessment of Nonlinear Force-Free Field Modeling of the Solar Corona for Active Region 10953 by DeRosa, Marc L, Schrijver, Carolus J, Barnes, Graham, Leka, K. D, Lites, Bruce W, Aschwanden, Markus J, Amari, Tahar, Canou, Aurélien, McTiernan, James M, Régnier, Stéphane, Thalmann, Julia K, Valori, Gherardo, Wheatland, Michael S, Wiegelmann, Thomas, Cheung, Mark C. M, Conlon, Paul A, Fuhrmann, Marcel, Inhester, Bernd, Tadesse, Tilaye

“…Nonlinear force-free field (NLFFF) models are thought to be viable tools for investigating the structure, dynamics, and evolution of the coronae of solar…”
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Bright Hot Impacts by Erupted Fragments Falling Back on the Sun: A Template for Stellar Accretion by Reale, Fabio, Orlando, Salvatore, Testa, Paola, Peres, Giovanni, Landi, Enrico, Schrijver, Carolus J.

“…Impacts of falling fragments observed after the eruption of a filament in a solar flare on 7 June 2011 are similar to those inferred for accretion flows on…”
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Observations and Modeling of the Early Acceleration Phase of Erupting Filaments Involved in Coronal Mass Ejections by Schrijver, Carolus J, Elmore, Christopher, Kliem, Bernhard, Török, Tibor, Title, Alan M

“…We examine the early phases of two near-limb filament destabilizatlons involved in coronal mass ejections (CMEs) on 2005 June 16 and July 27, using…”
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Nonlinear Force-Free Modeling of Coronal Magnetic Fields Part I: A Quantitative Comparison of Methods by Schrijver, Carolus J, Derosa, Marc L, Metcalf, Thomas R, Liu, Yang, Mctiernan, Jim, Regnier, Stephane, Valori, Gherardo, Wheatland, Michael S, Wiegelmann, Thomas

“…We compare six algorithms for the computation of nonlinear force-free (NLFF) magnetic fields (including optimization, magnetofrictional, Grad-Rubin based, and…”
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Nonlinear Force-Free Modeling of Coronal Magnetic Fields. II. Modeling a Filament Arcade and Simulated Chromospheric and Photospheric Vector Fields by Metcalf, Thomas R., DeRosa, Marc L., Schrijver, Carolus J., Barnes, Graham, van Ballegooijen, Adriaan A., Wiegelmann, Thomas, Wheatland, Michael S., Valori, Gherardo, McTtiernan, James M.

“…We compare a variety of nonlinear force-free field (NLFFF) extrapolation algorithms, including optimization, magneto-frictional, and Grad – Rubin-like codes,…”
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The Global Solar Magnetic Field Through a Full Sunspot Cycle: Observations and Model Results by Schrijver, Carolus J., Liu, Yang

“…Based on 11 years of SOHO/MDI observations from the cycle minimum in 1997 to the next minimum around 2008, we compare observed and modeled axial dipole moments…”
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Blind Stereoscopy of the Coronal Magnetic Field by Aschwanden, Markus J., Schrijver, Carolus J., Malanushenko, Anna

“…We test the feasibility of 3D coronal-loop tracing in stereoscopic EUV image pairs, with the ultimate goal of enabling efficient 3D reconstruction of the…”
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Braiding-induced Interchange Reconnection of the Magnetic Field and the Width of Solar Coronal Loops by Schrijver, Carolus J

“…The random walk of the footpoints of coronal loops in the rapidly evolving solar granulation is expected to cause braiding of the field, which in turn should…”
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MAGNETIC PROPERTIES OF SOLAR ACTIVE REGIONS THAT GOVERN LARGE SOLAR FLARES AND ERUPTIONS by Toriumi, Shin, Schrijver, Carolus J., Harra, Louise K., Hudson, Hugh, Nagashima, Kaori

“…ABSTRACT Solar flares and coronal mass ejections (CMEs), especially the larger ones, emanate from active regions (ARs). With the aim of understanding the…”
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Magnetic Field Topology and the Thermal Structure of the Corona over Solar Active Regions by Schrijver, Carolus J, DeRosa, Marc L, Title, Alan M

“…Solar extreme ultraviolet (EUV) images of quiescent active-region coronae are characterized by ensembles of bright 1-2 MK loops that fan out from select…”
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The Magnetic Connection between the Solar Photosphere and the Corona by Schrijver, Carolus J, Title, Alan M

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The Properties of Small Magnetic Regions on the Solar Surface and the Implications for the Solar Dynamo(s) by Hagenaar, Hermance J, Schrijver, Carolus J, Title, Alan M

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The Nonpotentiality of Active-Region Coronae and the Dynamics of the Photospheric Magnetic Field by Schrijver, Carolus J, DeRosa, Marc L, Title, Alan M, Metcalf, Thomas R

“…The magnetic field in the solar photosphere frequently carries strong electric currents, even though the global coronal configuration often resembles a…”
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The Coronal Heating Mechanism as Identified by Full-Sun Visualizations by Schrijver, Carolus J, Sandman, Anne W, Aschwanden, Markus J, DeRosa, Marc L

“…We constrain the properties of the mechanism(s) responsible for the bulk of the heating of the corona of the Sun by simulating, for the first time, the…”
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On the Formation of Polar Spots in Sun-like Stars by Schrijver, Carolus J, Title, Alan M

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