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Simultaneous Kepler/K2 and XMM-Newton observations of superflares in the Pleiades

Guarcello, M. G. and Argiroffi, C. and Drake, J. J. and Flaccomio, E. and López-Santiago, J. and Micela, G. and Reale, F. and Rebull, L. and Sciortino, S. and Stauffer, J. and Antoniou, V. and Alvarado-Gómez, J. D. (2019) Simultaneous Kepler/K2 and XMM-Newton observations of superflares in the Pleiades. Astronomische Nachrichten, 340 (4). pp. 302-307. ISSN 0004-6337. https://resolver.caltech.edu/CaltechAUTHORS:20190523-151701759

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Abstract

Together with coronal mass ejection, flares are the most energetic stellar magnetic events, ignited by a sudden release of magnetic energy, which triggers a cascade of interconnected phenomena, each resulting in emission in different bands. For this reason, flares are intrinsic multiwavelength phenomena. In particular, optical and soft X‐ray emission probes two different events occurring during flares: the heating of plasma in the upper photosphere at the footpoints of the magnetic loops and the heating and cooling of the plasma confined in the loops in the corona, respectively. To characterize powerful flares observed in optical and X‐rays, constrain the energy released in both bands, the geometry of the loops, and to study flares time evolution, we studied the brightest flares occurred in the 125‐Myr‐old stars in the Pleiades observed simultaneously with x‐ray multi‐mirror mission/Newton and Kepler/K2.


Item Type:Article
Related URLs:
URLURL TypeDescription
https://doi.org/10.1002/asna.201913614DOIArticle
http://resolver.caltech.edu/CaltechAUTHORS:20190307-103305275Related ItemAstronomy and Astrophysics journal article
ORCID:
AuthorORCID
Guarcello, M. G.0000-0002-3010-2310
Drake, J. J.0000-0002-0210-2276
Flaccomio, E.0000-0002-3638-5788
Micela, G.0000-0002-9900-4751
Rebull, L.0000-0001-6381-515X
Stauffer, J.0000-0003-3595-7382
Antoniou, V.0000-0001-7539-1593
Additional Information:© 2019 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim. Issue Online: 06 May 2019; Version of Record online: 25 March 2019; Manuscript accepted: 13 December 2018; Manuscript received: 30 August 2018.
Group:Infrared Processing and Analysis Center (IPAC)
Subject Keywords:stars: activity; stars: coronae; stars: flare; X‐rays: stars
Issue or Number:4
Record Number:CaltechAUTHORS:20190523-151701759
Persistent URL:https://resolver.caltech.edu/CaltechAUTHORS:20190523-151701759
Official Citation:Guarcello, MG, Argiroffi, C, Drake, JJ, et al. Simultaneous Kepler/K2 and XMM‐Newton observations of superflares in the Pleiades. Astron. Nachr. 2019; 340: 302– 307. https://doi.org/10.1002/asna.201913614
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:95769
Collection:CaltechAUTHORS
Deposited By: Tony Diaz
Deposited On:23 May 2019 22:27
Last Modified:03 Oct 2019 21:16

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