Zobrazeno 1 - 10
of 125
pro vyhledávání: '"David H. Brooks"'
Autor:
Stephanie L. Yardley, David H. Brooks
Publikováno v:
The Astrophysical Journal, Vol 976, Iss 2, p 152 (2024)
Large gradual solar energetic particle (SEP) events can pose a radiation risk to crewed spaceflight and a significant threat to near-Earth satellites; however, the origin of the SEP seed particle population, and how these particles are released, acce
Externí odkaz:
https://doaj.org/article/5f80916148cc480b84a67f543acb817b
Autor:
David M. Long, Deborah Baker, Andy S. H. To, Lidia van Driel-Gesztelyi, David H. Brooks, Marco Stangalini, Mariarita Murabito, Alexander W. James, Mihalis Mathioudakis, Paola Testa
Publikováno v:
The Astrophysical Journal, Vol 965, Iss 1, p 63 (2024)
The composition of the solar corona differs from that of the photosphere, with the plasma thought to fractionate in the solar chromosphere according to the first ionization potential (FIP) of the different elements. This produces a FIP bias, wherein
Externí odkaz:
https://doaj.org/article/57c3e388a81c4a13ab11abb23ce025f5
Publikováno v:
The Astrophysical Journal, Vol 962, Iss 2, p 105 (2024)
A significant impediment to solving the coronal heating problem is that we currently only observe active region loops in their cooling phase. Previous studies showed that the evolution of cooling loop densities and apex temperatures is insensitive to
Externí odkaz:
https://doaj.org/article/5db78e84c8c546019e6e41d18241e3f1
Publikováno v:
Frontiers in Astronomy and Space Sciences, Vol 10 (2023)
We assess the on-orbit performance of the flare event trigger for the Hinode EUV Imaging Spectrometer. Our goal is to understand the time-delay between the occurrence of a flare, as defined by a prompt rise in soft X-ray emission, and the initiation
Externí odkaz:
https://doaj.org/article/06fe8c0a44f04990825ca4118f4fa187
Autor:
Ignacio Ugarte-Urra, Peter R. Young, David H. Brooks, Harry P. Warren, Bart De Pontieu, Paul Bryans, Jeffrey W. Reep, Cooper Downs, Amy R. Winebarger, Samuel D. Tun
Publikováno v:
Frontiers in Astronomy and Space Sciences, Vol 9 (2023)
In the context of the recent call for white papers for the Decadal Survey for Solar and Space Physics (Heliophysics) 2024–2033, we present the argument that spatially-resolved spectral diagnostics over the full solar disk should be made a high-prio
Externí odkaz:
https://doaj.org/article/c2abc91326a0462e83d93d5b63a01be7
Autor:
Teodora Mihailescu, David H. Brooks, J. Martin Laming, Deborah Baker, Lucie M. Green, Alexander W. James, David M. Long, Lidia van Driel-Gesztelyi, Marco Stangalini
Publikováno v:
The Astrophysical Journal, Vol 959, Iss 2, p 72 (2023)
The plasma composition of the solar corona is different from that of the solar photosphere. Elements that have a low first ionization potential (FIP) are preferentially transported to the corona and therefore show enhanced abundances in the corona co
Externí odkaz:
https://doaj.org/article/92101c261abd4a2f96adbda4de3e1b95
Autor:
David M. Long, Lucie M. Green, Francesco Pecora, David H. Brooks, Hanna Strecker, David Orozco-Suárez, Laura A. Hayes, Emma E. Davies, Ute V. Amerstorfer, Marilena Mierla, David Lario, David Berghmans, Andrei N. Zhukov, Hannah T. Rüdisser
Publikováno v:
The Astrophysical Journal, Vol 955, Iss 2, p 152 (2023)
Magnetic flux ropes are a key component of coronal mass ejections, forming the core of these eruptive phenomena. However, determining whether a flux rope is present prior to eruption onset and, if so, the rope’s handedness and the number of turns t
Externí odkaz:
https://doaj.org/article/0926a3bfe0234313928a40b8fb380644
Autor:
Stephanie L. Yardley, Christopher J. Owen, David M. Long, Deborah Baker, David H. Brooks, Vanessa Polito, Lucie M. Green, Sarah Matthews, Mathew Owens, Mike Lockwood, David Stansby, Alexander W. James, Gherardo Valori, Alessandra Giunta, Miho Janvier, Nawin Ngampoopun, Teodora Mihailescu, Andy S. H. To, Lidia van Driel-Gesztelyi, Pascal Démoulin, Raffaella D’Amicis, Ryan J. French, Gabriel H. H. Suen, Alexis P. Rouillard, Rui F. Pinto, Victor Réville, Christopher J. Watson, Andrew P. Walsh, Anik De Groof, David R. Williams, Ioannis Zouganelis, Daniel Müller, David Berghmans, Frédéric Auchère, Louise Harra, Udo Schuehle, Krysztof Barczynski, Éric Buchlin, Regina Aznar Cuadrado, Emil Kraaikamp, Sudip Mandal, Susanna Parenti, Hardi Peter, Luciano Rodriguez, Conrad Schwanitz, Phil Smith, Luca Teriaca, Cis Verbeeck, Andrei N. Zhukov, Bart De Pontieu, Tim Horbury, Sami K. Solanki, Jose Carlos del Toro Iniesta, Joachim Woch, Achim Gandorfer, Johann Hirzberger, David Orozco Súarez, Thierry Appourchaux, Daniele Calchetti, Jonas Sinjan, Fatima Kahil, Kinga Albert, Reiner Volkmer, Mats Carlsson, Andrzej Fludra, Don Hassler, Martin Caldwell, Terje Fredvik, Tim Grundy, Steve Guest, Margit Haberreiter, Sarah Leeks, Gabriel Pelouze, Joseph Plowman, Werner Schmutz, Sunil Sidher, William T. Thompson, Philippe Louarn, Andrei Federov
Publikováno v:
The Astrophysical Journal Supplement Series, Vol 267, Iss 1, p 11 (2023)
The Slow Solar Wind Connection Solar Orbiter Observing Plan (Slow Wind SOOP) was developed to utilize the extensive suite of remote-sensing and in situ instruments on board the ESA/NASA Solar Orbiter mission to answer significant outstanding question
Externí odkaz:
https://doaj.org/article/0066ae64811043d48a0175ce81e45182
Autor:
Andy S. H. To, Alexander W. James, T. S. Bastian, Lidia van Driel-Gesztelyi, David M. Long, Deborah Baker, David H. Brooks, Samantha Lomuscio, David Stansby, Gherardo Valori
Publikováno v:
The Astrophysical Journal, Vol 948, Iss 2, p 121 (2023)
Sun-as-a-star coronal plasma composition, derived from full-Sun spectra, and the F10.7 radio flux (2.8 GHz) have been shown to be highly correlated ( r = 0.88) during solar cycle 24. However, this correlation becomes nonlinear during increased solar
Externí odkaz:
https://doaj.org/article/34a1dbfc30e44df1aa9cf8be5964e5ff
Publikováno v:
Nature Communications, Vol 8, Iss 1, Pp 1-7 (2017)
The Sun’s elemental composition is a vital part of understanding the processes that transport energy from the interior to the outer atmosphere. Here, the authors show that if the Sun is observed as a star, then the variation of coronal composition
Externí odkaz:
https://doaj.org/article/1c8300afa243440dbb205c7aeea9a194