Zobrazeno 1 - 10
of 3 647
pro vyhledávání: '"P, Livi"'
Autor:
Chitta, L. P., Huang, Z., D'Amicis, R., Calchetti, D., Zhukov, A. N., Kraaikamp, E., Verbeeck, C., Cuadrado, R. Aznar, Hirzberger, J., Berghmans, D., Horbury, T. S., Solanki, S. K., Owen, C. J., Harra, L., Peter, H., Schühle, U., Teriaca, L., Louarn, P., Livi, S., Giunta, A. S., Hassler, D. M., Wang, Y. -M.
The solar wind, classified by its bulk speed and the Alfv\'enic nature of its fluctuations, generates the heliosphere. The elusive physical processes responsible for the generation of the different types of the wind are a topic of active debate. Rece
Externí odkaz:
http://arxiv.org/abs/2411.16513
Autor:
Desai, M. I., Drake, J. F., Phan, T., Yin, Z., Swisdak, M., McComas, D. J., Bale, S. D., Rahmati, A., Larson, D., Matthaeus, W. H., Dayeh, M. A., Starkey, M. J., Raouafi, N. E., Mitchell, D. G., Cohen, C. M. S., Szalay, J. R., Giacalone, J., Hill, M. E., Christian, E. R., Schwadron, N. A., McNutt Jr., R. L., Malandraki, O., Whittlesey, P., Livi, R., Kasper, J. C.
We report observations of direct evidence of energetic protons being accelerated above ~400 keV within the reconnection exhaust of a heliospheric current sheet (HCS) crossing by NASA's Parker Solar Probe (PSP) at a distance of ~16.25 solar radii (Rs)
Externí odkaz:
http://arxiv.org/abs/2410.16539
Autor:
Rivera, Yeimy J., Badman, Samuel T., Stevens, Michael L., Raines, Jim M., Owen, Christopher J., Paulson, Kristoff, Niembro, Tatiana, Livi, Stefano A., Lepri, Susan T., Landi, Enrico, Halekas, Jasper S., Ervin, Tamar, Dewey, Ryan M., Coburn, Jesse T., Bale, Stuart D., Alterman, B. L.
Since Parker Solar Probe's (Parker's) first perihelion pass at the Sun, large amplitude Alfv\'en waves grouped in patches have been observed near the Sun throughout the mission. Several formation processes for these magnetic switchback patches have b
Externí odkaz:
http://arxiv.org/abs/2409.03645
Autor:
Rivera, Yeimy J., Badman, Samuel T., Stevens, Michael L., Verniero, Jaye L., Stawarz, Julia E., Shi, Chen, Raines, Jim M., Paulson, Kristoff W., Owen, Christopher J., Niembro, Tatiana, Louarn, Philippe, Livi, Stefano A., Lepri, Susan T., Kasper, Justin C., Horbury, Timothy S., Halekas, Jasper S., Dewey, Ryan M., De Marco, Rossana, Bale, Stuart D.
Publikováno v:
Science, 385, 962-966 (2024)
After leaving the Sun's corona, the solar wind continues to accelerate and cools, but more slowly than expected for a freely expanding adiabatic gas. We use in situ measurements from the Parker Solar Probe and Solar Orbiter spacecrafts to investigate
Externí odkaz:
http://arxiv.org/abs/2409.00267
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
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
Autor:
Sun, Weijie, Dewey, Ryan M., Jia, Xianzhe, Raines, Jim M., Slavin, James A., Chen, Yuxi, Phan, Tai, Poh, Gangkai, Xu, Shaosui, Milillo, Anna, Lillis, Robert, Saito, Yoshifumi, Livi, Stefano, Orsini, Stefano
Publikováno v:
Geophysical Research Letters, 51, e2023GL107689 (2024)
This study investigates the escape of Mercury's sodium-group ions (Na+-group, including ions with m/q from 21 to 30 amu/e) and their dependence on true anomaly angle (TAA), i.e., Mercury's orbital phase around the Sun, using measurements from MESSENG
Externí odkaz:
http://arxiv.org/abs/2404.13264
Autor:
Bruno, Roberto, DeMarco, Rossana, Amicis, Raffaella D, Perrone, Denise, Marcucci, Maria Federica, Telloni, Daniele, Marino, Raffaele, Valvo, Luca Sorriso, Fortunato, Vito, Mele, Gennaro, Monti, Francesco, Fedorov, Andrei, Louarn, Philippe, Owen, Chris, Livi, Stefano
The problems of heating and acceleration of solar wind particles are of significant and enduring interest in astrophysics. The interactions between waves and particles are crucial in determining the distributions of proton and alpha particles, result
Externí odkaz:
http://arxiv.org/abs/2403.10489
Publikováno v:
Found Phys 54, 50 (2024)
First of all we shortly illustrate how the symplectic quantization scheme [Gradenigo and Livi, 2021] can be applied to a relativistic field theory with self-interaction. Taking inspiration from the stochastic quantization method by Parisi and Wu, thi
Externí odkaz:
http://arxiv.org/abs/2401.12355
Publikováno v:
Giornale di Fisica, VOL. LXIV, N. 3 p.275 (2023)
The year 1953 is pivotal for computational physics: the first application of the Monte-Carlo method is published and calculations of the so-called Fermi-Pasta-Ulam-Tsingou experiment are started. It is the beginning of the massive use in the physical
Externí odkaz:
http://arxiv.org/abs/2311.09769