Zobrazeno 1 - 10
of 3 021
pro vyhledávání: '"Malaspina P"'
Autor:
Baalmann, Lennart R., Hunziker, Silvan, Péronne, Arthur, Kirchner, James W., Glassmeier, Karl-Heinz, Malaspina, David M., Wilson III, Lynn B., Strähl, Christoph, Chadda, Shivank, Sterken, Veerle J.
Publikováno v:
Astronomy & Astrophysics, Volume 689, A329, September 2024
Dust particle impacts on the Wind spacecraft were detected with its plasma wave instrument Wind/WAVES. Frequency analysis on this dust impact time series revealed spectral peaks indicative of a solar rotation signature. We investigated whether this s
Externí odkaz:
http://arxiv.org/abs/2410.02351
The Parker Solar Probe (PSP) spacecraft has transited the inner-most regions of the zodiacal cloud and detects impacts to the spacecraft body via its electric field instrument. Multiple dust populations have been proposed to explain the PSP dust impa
Externí odkaz:
http://arxiv.org/abs/2409.07411
Autor:
Bellavia, Stefania, Malaspina, Greta
Consensus based optimization is a derivative-free particles-based method for the solution of global optimization problems. Several versions of the method have been proposed in the literature, and different convergence results have been proved. Howeve
Externí odkaz:
http://arxiv.org/abs/2408.10078
Autor:
Ijishakin, Ayodeji, Hadjasavilou, Adamos, Abdulaal, Ahmed, Montana-Brown, Nina, Townend, Florence, Spinelli, Edoardo, Fillipi, Massimo, Agosta, Federica, Cole, James, Malaspina, Andrea
Predicting survival in Amyotrophic Lateral Sclerosis (ALS) is a challenging task. Magnetic resonance imaging (MRI) data provide in vivo insight into brain health, but the low prevalence of the condition and resultant data scarcity limit training set
Externí odkaz:
http://arxiv.org/abs/2407.14191
Autor:
An, Xin, Artemyev, Anton, Angelopoulos, Vassilis, Liu, Terry Z., Vasko, Ivan, Malaspina, David
In space plasmas, large-amplitude Alfv\'en waves can drive compressive perturbations, accelerate ion beams, and lead to plasma heating and the excitation of ion acoustic waves at kinetic scales. This energy channelling from fluid to kinetic scales re
Externí odkaz:
http://arxiv.org/abs/2406.14782
Regions of magnetic field with near-radial, Parker Spiral-like geometry known as quiescent regions have been observed in Parker Solar Probe data. These regions have very low $\delta B / \langle |B| \rangle$ compared to non-quiescent solar wind at the
Externí odkaz:
http://arxiv.org/abs/2406.00174
Autor:
Schwadron, N. A., Bale, Stuart D., Bonnell, J., Case, A., Shen, M., Christian, E. R., Cohen, C. M. S., Davis, A. J., Desai, M. I., Goetz, K., Giacalone, J., Hill, M. E., Kasper, J. C., Korreck, K., Larson, D., Livi, R., Lim, T., Leske, R. A., Malandraki, O., Malaspina, D., Matthaeus, W. H., McComas, D. J., McNutt Jr., R. L., Mewaldt, R. A., Mitchell, D. G., Niehof, J. T., Pulupa, M., Pecora, Francesco, Rankin, J. S., Smith, C., Stone, E. C., Szalay, J. R., Vourlidas, A., Wiedenbeck, M. E., Whittlesey, P.
Publikováno v:
Astrophysical Journal, 2024
We present an event observed by Parker Solar Probe at $\sim$0.2 au on March 2, 2022 in which imaging and \emph{in situ} measurements coincide. During this event, PSP passed through structures on the flank of a streamer blowout CME including an isolat
Externí odkaz:
http://arxiv.org/abs/2405.16590
Autor:
Pagano, Paula L., Borghi, Massimo, Moroni, Federica, Viola, Alice, Malaspina, Francesco, Liscidini, Marco, Bajoni, Daniele, Galli, Matteo
Optical microresonators are characterized by a comb of resonances that preserve similar characteristics over a broad spectral interval. However, for many applications it is beneficial to selectively control of the quality factor (Q) of one or only so
Externí odkaz:
http://arxiv.org/abs/2404.15740
Frequency Dispersed Ion Acoustic Waves in the Near Sun Solar Wind: Signatures of Impulsive Ion Beams
Autor:
Malaspina, David M., Ergun, Robert E., Cairns, Iver H., Short, Benjamin, Verniero, Jaye L., Cattell, Cynthia, Livi, Roberto
This work reports a novel plasma wave observation in the near-Sun solar wind: frequency-dispersed ion acoustic waves. Similar waves were previously reported in association with interplanetary shocks or planetary bow shocks, but the waves reported her
Externí odkaz:
http://arxiv.org/abs/2404.14559
An outstanding gap in our knowledge of the solar wind is the relationship between switchbacks and solar wind turbulence. Switchbacks are large fluctuations, even reversals, of the background magnetic field embedded in the solar wind flow. It has been
Externí odkaz:
http://arxiv.org/abs/2404.03075