Zobrazeno 1 - 10
of 38
pro vyhledávání: '"L. K. Harra"'
Autor:
Nour E. Raouafi, G. Stenborg, D. B. Seaton, H. Wang, J. Wang, C. E. DeForest, S. D. Bale, J. F. Drake, V. M. Uritsky, J. T. Karpen, C. R. DeVore, A. C. Sterling, T. S. Horbury, L. K. Harra, S. Bourouaine, J. C. Kasper, P. Kumar, T. D. Phan, M. Velli
Publikováno v:
The Astrophysical Journal, Vol 945, Iss 1, p 28 (2023)
We present EUV solar observations showing evidence for omnipresent jetting activity driven by small-scale magnetic reconnection at the base of the solar corona. We argue that the physical mechanism that heats and drives the solar wind at its source i
Externí odkaz:
https://doaj.org/article/fdf3a4a6306c4020b680b8ac77dc1af4
Autor:
K. Steed, C. J. Owen, L. K. Harra, L. M. Green, S. Dasso, A. P. Walsh, P. Démoulin, L. van Driel-Gesztelyi
Publikováno v:
Annales Geophysicae, Vol 26, Pp 3159-3168 (2008)
Using Advanced Composition Explorer (ACE) in situ data we identify and describe an interplanetary magnetic cloud (MC) observed near Earth on 13 April 2006. We also use multi-instrument and multi-wavelength observations from the Solar and Heliosphe
Externí odkaz:
https://doaj.org/article/7a4f0fa0fe1a43c29f4881875d6d5a54
Publikováno v:
Annales Geophysicae, Vol 26, Pp 3077-3088 (2008)
The apparent contradiction between small-scale source regions of, and large-scale coronal response to, coronal mass ejections (CMEs) has been a long-standing puzzle. For some, CMEs are considered to be inherently large-scale events – eruptions i
Externí odkaz:
https://doaj.org/article/8ee8b67bf2094566bcd7b4dfac2de30e
Publikováno v:
Astronomy & Astrophysics, 665
Context. Solar active regions are known to have jets. These jets are associated with heating and the release of particles into the solar wind. Aims. Our aim is to understand the spatial distribution of coronal jets within active regions to understand
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f76081dd438a1904e1c06f8aafb83ec3
http://arxiv.org/abs/2207.09923
http://arxiv.org/abs/2207.09923
Autor:
D. de Pablos, T. Samanta, S. T. Badman, C. Schwanitz, S. M. Bahauddin, L. K. Harra, G. Petrie, C. Mac Cormack, C. H. Mandrini, N. E. Raouafi, V. Martinez Pillet, M. Velli
Publikováno v:
Solar Physics, 297 (7)
Parker Solar Probe observations show ubiquitous magnetic-field reversals closer to the Sun, often referred to as "switchbacks". The switchbacks have been observed before in the solar wind near 1 AU and beyond, but their occurrence was historically ra
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::35b8867a896b06d4207ced4619cfd114
https://hdl.handle.net/20.500.11850/559662
https://hdl.handle.net/20.500.11850/559662
Autor:
Alexander Gottwald, T. Kennedy, David Berghmans, Xiang Zhang, M. Gyo, Marie-Laure Hellin, Udo Schühle, Jean-Philippe Halain, C. Dumesnil, V. Hervier, B. Giordanengo, Raymond Mercier, K. Heerlein, Philip J. Smith, Werner Schmutz, Luca Teriaca, Alexandra Mazzoli, Lionel Jacques, Aline Hermans, Etienne Renotte, R. Aznar Cuadrado, Frank Scholze, Laurence Rossi, Stéphane Roose, F. Auchere, S. Meining, Franck Delmotte, Cis Verbeeck, S. Gissot, Pierre Rochus, L. K. Harra, Christian Laubis, A. Philippon, J. Barbay
Publikováno v:
Space Telescopes and Instrumentation 2018: Ultraviolet to Gamma Ray.
The Extreme Ultraviolet Imager (EUI) instrument for the Solar Orbiter mission will image the solar corona in the extreme ultraviolet (17.1 nm and 30.4 nm) and in the vacuum ultraviolet (121.6 nm) spectral ranges. The development of the EUI instrument
Autor:
E P, Kontar, J E, Perez, L K, Harra, A A, Kuznetsov, A G, Emslie, N L S, Jeffrey, N H, Bian, B R, Dennis
Publikováno v:
Physical review letters. 118(15)
The energy released in solar flares derives from a reconfiguration of magnetic fields to a lower energy state, and is manifested in several forms, including bulk kinetic energy of the coronal mass ejection, acceleration of electrons and ions, and enh
Publikováno v:
The Astrophysical Journal
The Astrophysical Journal, American Astronomical Society, 2016, 823 (2), pp.145. ⟨10.3847/0004-637X/823/2/145⟩
The Astrophysical Journal, 2016, 823 (2), pp.145. ⟨10.3847/0004-637X/823/2/145⟩
The Astrophysical Journal, American Astronomical Society, 2016, 823 (2), pp.145. ⟨10.3847/0004-637X/823/2/145⟩
The Astrophysical Journal, 2016, 823 (2), pp.145. ⟨10.3847/0004-637X/823/2/145⟩
In this work we analyze multiple sources of solar wind through a full Carrington Rotation (CR 2053) by analyzing the solar data through spectroscopic observations of the plasma upflow regions and the in situ data of the wind itself. Following earlier
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::719e923847f7c28d1c8f63bde6a4771f
https://hal.archives-ouvertes.fr/hal-02459682
https://hal.archives-ouvertes.fr/hal-02459682
Autor:
Cristina Hemilse Mandrini, L. K. Harra, Gemma Attrill, Sergio Dasso, L. van Driel-Gesztelyi, J. Z. Wang, M. S. Nakwacki
Publikováno v:
Solar Physics. 238:117-139
We demonstrate that study of the evolving magnetic nature of coronal dimming regions can be used to probe the large-scale magnetic structure involved in the eruption of a coronal mass ejection (CME). We analyse the intensity evolution of coronal dimm
Publikováno v:
Advances in Space Research. 25:1747-1750
The recent solar minimum has allowed studies to be made of quiet-Sun structures with SOHO instruments with better resolution than before. This paper reports on the morphology and dynamics of the EUV emission, including the chromospheric and transitio