Zobrazeno 1 - 10
of 41
pro vyhledávání: '"James, Alexander W."'
Autor:
Long, David M., Baker, Deborah, To, Andy S. H., van Driel-Gesztelyi, Lidia, Brooks, David H., Stangalini, Marco, Murabito, Mariarita, James, Alexander W., Mathioudakis, Mihalis, Testa, Paola
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 Ionisation Potential (FIP) of the different elements. This produces a FIP bias, wherein
Externí odkaz:
http://arxiv.org/abs/2403.06711
Autor:
Mihailescu, Teodora, Brooks, David H., Laming, J. Martin, Baker, Deborah, Green, Lucie M., James, Alexander W., Long, David M., van Driel-Gesztelyi, Lidia, Stangalini, Marco
The plasma composition of the solar corona is different from that of the solar photosphere. Elements that have a low first ionisation potential (FIP) are preferentially transported to the corona and, therefore, show enhanced abundances in the corona
Externí odkaz:
http://arxiv.org/abs/2310.13677
Autor:
Ngampoopun, Nawin, Long, David M., Baker, Deborah, Green, Lucie M., Yardley, Stephanie L., James, Alexander W., To, Andy S. H.
We report on the merging between the southern polar coronal hole and an adjacent coronal dimming induced by a coronal mass ejection on 2022 March 18, resulting in the merged region persisting for at least 72 hrs. We use remote sensing data from multi
Externí odkaz:
http://arxiv.org/abs/2305.06106
Autor:
Yardley, Stephanie L., Owen, Christopher J., Long, David M., Baker, Deborah, Brooks, David H., Polito, Vanessa, Green, Lucie M., Matthews, Sarah, Owens, Mathew, Lockwood, Mike, Stansby, David, James, Alexander W., Valori, Gherado, Giunta, Alessandra, Janvier, Miho, Ngampoopun, Nawin, Mihailescu, Teodora, To, Andy S. H., van Driel-Gesztelyi, Lidia, Demoulin, Pascal, D'Amicis, Raffaella, French, Ryan J., Suen, Gabriel H. H., Roulliard, Alexis P., Pinto, Rui F., Reville, Victor, Watson, Christopher J., Walsh, Andrew P., De Groof, Anik, Williams, David R., Zouganelis, Ioannis, Muller, Daniel, Berghmans, David, Auchere, Frederic, Harra, Louise, Scheuhle, Udo, Barczynski, Krysztof, Buchlin, Eric, Cuadrado, Regina Aznar, Kraaikamp, Emil, Mandal, Sudip, Parenti, Susanna, Peter, Hardi, Rodriguez, Luciano, Schwanitz, Conrad, Smith, Phil, Teriaca, Luca, Verbeeck, Cis, Zhukov, Andrei N., De Pontieu, Bart, Horbury, Tim, Solanki, Sami K., Iniesta, Jose Carlos del Toro, Woch, Joachim, Gandorfer, Achim, Hirzberger, Johann, Suarez, David Orozco, Appourchaux, Thierry, Calchetti, Daniele, Sinjan, Jonas, Kahil, Fatima, Albert, Kinga, Volkmer, Reiner, Carlsson, Mats, Fludra, Andrzej, Hassler, Don, Caldwell, Martin, Fredvik, Terje, Grundy, Tim, Guest, Steve, Haberreiter, Margit, Leeks, Sarah, Pelouze, Gabriel, Plowman, Joseph, Schmutz, Werner, Sidher, Sunil, Thompson, William T., Louarn, Philippe, Federov, Andrei
The Slow Solar Wind Connection Solar Orbiter Observing Plan (Slow Wind SOOP) was developed to utilise 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:
http://arxiv.org/abs/2304.09570
Autor:
To, Andy S. H., James, Alexander W., Bastian, T. S., van Driel-Gesztelyi, Lidia, Long, David M., Baker, Deborah, Brooks, David H., Lomuscio, Samantha, Stansby, David, Valori, Gherardo
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 m
Externí odkaz:
http://arxiv.org/abs/2304.02552
Autor:
Yardley, Stephanie L., Green, Lucie M., James, Alexander W., Stansby, David, Mihailescu, Teodora
Forecasting solar energetic particles (SEPs), and identifying flare/CMEs from active regions (ARs) that will produce SEP events in advance is extremely challenging. We investigate the magnetic field environment of AR 12673, including the AR's magneti
Externí odkaz:
http://arxiv.org/abs/2208.12774
Publikováno v:
A&A 665, A37 (2022)
Aims. Working towards improved space weather predictions, we aim to quantify how the critical height at which the torus instability drives coronal mass ejections (CMEs) varies over time in a sample of solar active regions. Methods. We model the coron
Externí odkaz:
http://arxiv.org/abs/2206.10639
Publikováno v:
A&A 644, A137 (2020)
Context: Many previous studies have shown that the magnetic precursor of a coronal mass ejection (CME) takes the form of a magnetic flux rope, and a subset of them have become known as `hot flux ropes' due to their emission signatures in $\sim$10 MK
Externí odkaz:
http://arxiv.org/abs/2010.11204
Autor:
Baker, Deborah, van Driel-Gesztelyi, Lidia, Brooks, David H., Demoulin, Pascal, Valori, Gherardo, Long, David M., Laming, J. Martin, To, Andy S. H., James, Alexander W.
Within the coronae of stars, abundances of those elements with low first ionization potential (FIP) often differ from their photospheric values. The coronae of the Sun and solar-type stars mostly show enhancements of low- FIP elements (the FIP effect
Externí odkaz:
http://arxiv.org/abs/2003.03325
Autor:
Baker, Deborah, van Driel-Gesztelyi, Lidia, Brooks, David H., Valori, Gherardo, James, Alexander W., Laming, J. Martin, Long, David M., Demoulin, Pascal, Green, Lucie M., Matthews, Sarah A., Olah, Katalin, Kovari, Zsolt
Understanding elemental abundance variations in the solar corona provides an insight into how matter and energy flow from the chromosphere into the heliosphere. Observed variations depend on the first ionization potential (FIP) of the main elements o
Externí odkaz:
http://arxiv.org/abs/1902.06948