Zobrazeno 1 - 10
of 57
pro vyhledávání: '"Alterman, B. A."'
Autor:
Alterman, B. L., D'Amicis, R.
The two-state solar wind paradigm is based on observations showing that slow and fast solar wind have distinct properties like helium abundances, kinetic signatures, elemental composition, and charge-state ratios. Nominally, the fast wind originates
Externí odkaz:
http://arxiv.org/abs/2412.00365
The solar wind is typically categorized as fast and slow based on the measured speed ($v_\mathrm{sw}$). The separation between these two regimes is often set between 400 and 600 km/s without a rigorous definition. Observations of the solar wind's kin
Externí odkaz:
http://arxiv.org/abs/2411.18984
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
We report on the annual variation of quiet-time suprathermal ion composition for C through Fe using Advanced Composition Explorer (ACE)/Ultra-Low Energy Isotope Spectrometer (ULEIS) data over the energy range 0.3 MeV/nuc to 1.28 MeV/nuc from 1998 thr
Externí odkaz:
http://arxiv.org/abs/2305.05441
Autor:
Verniero, J. L., Chandran, B. D. G., Larson, D. E., Paulson, K., Alterman, B. L., Badman, S., Bale, S. D., Bonnell, J. W., Bowen, T. A., de Wit, T. Dudok, Kasper, J. C., Klein, K. G., Lichko, E., Livi, R., McManus, M. D., Rahmati, A., Verscharen, D., Walters, J., Whittlesey, P. L.
The SWEAP instrument suite on Parker Solar Probe (PSP) has detected numerous proton beams associated with coherent, circularly polarized, ion-scale waves observed by PSP's FIELDS instrument suite. Measurements during PSP Encounters 4-8 revealed prono
Externí odkaz:
http://arxiv.org/abs/2110.08912
Autor:
Klein, K. G., Verniero, J. L., Alterman, B., Bale, S., Case, A., Kasper, J. C., Korreck, K., Larson, D., Lichko, E., Livi, R., McManus, M., Martinović, M., Rahmati, A., Stevens, M., Whittlesey, P.
The hot and diffuse nature of the Sun's extended atmosphere allows it to persist in non-equilibrium states for long enough that wave-particle instabilities can arise and modify the evolution of the expanding solar wind. Determining which instabilitie
Externí odkaz:
http://arxiv.org/abs/2101.10937
We study the solar wind helium-to-hydrogen abundance's ($A_\mathrm{He}$) relationship to solar cycle onset. Using OMNI/Lo data, we show that $A_\mathrm{He}$ increases prior to sunspot number (SSN) minima. We also identify a rapid depletion and recove
Externí odkaz:
http://arxiv.org/abs/2006.04669
Autor:
Huang, Jia, Kasper, J. C., Stevens, M., Vech, D., Klein, K. G., Martinović, Mihailo M., Alterman, B. L., Jian, Lan K., Hu, Qiang, Velli, Marco, Horbury, Timothy S., Lavraud, B., Parashar, T. N., Ďurovcová, Tereza, Niembro, Tatiana, Paulson, Kristoff, Hegedus, A., Bert, C. M., Holmes, J., Case, A. W., Korreck, K. E., Bale, Stuart D., Larson, Davin E., Livi, Roberto, Whittlesey, P., Pulupa, Marc, de Wit, Thierry Dudok, Malaspina, David M., MacDowall, Robert J., Bonnell, John W., Harvey, Peter R., Goetz, Keith
The slow solar wind is typically characterized as having low Alfv\'enicity. However, Parker Solar Probe (PSP) observed predominately Alfv\'enic slow solar wind during several of its initial encounters. From its first encounter observations, about 55.
Externí odkaz:
http://arxiv.org/abs/2005.12372
Autor:
Pillet, V. Martinez, Tritschler, A., Harra, L., Andretta, V., Vourlidas, A., Raouafi, N., Alterman, B. L., Rubio, L. Bellot, Cauzzi, G., Cranmer, S. R., Gibson, S., Habbal, S., Ko, Y. K., Lepri, S. T., Linker, J., Malaspina, D. M., Matthews, S., Parenti, S., Petrie, G., Spadaro, D., Ugarte-Urra, I., Warren, H., Winslow, R.
The National Science Foundation (NSF) Daniel K. Inouye Solar Telescope (DKIST) is about to start operations at the summit of Haleakala (Hawaii). DKIST will join the early science phases of the NASA and ESA Parker Solar Probe and Solar Orbiter encount
Externí odkaz:
http://arxiv.org/abs/2004.08632
Autor:
Verniero, J. L., Larson, D. E., Livi, R., Rahmati, A., McManus, M. D., Pyakurel, P. Sharma, Klein, K. G., Bowen, T. A., Bonnell, J. W., Alterman, B. L., Whittlesey, P. L., Malaspina, David M., Bale, S. D., Kasper, J. C., Case, A. W., Goetz, K., Harvey, P. R., Korreck, K. E., MacDowall, R. J., Pulupa, M., Stevens, M. L., de Wit, T. Dudok
Parker Solar Probe (PSP), NASA's latest and closest mission to the Sun, is on a journey to investigate fundamental enigmas of the inner heliosphere. This paper reports initial observations made by the Solar Probe Analyzer for Ions (SPAN-I), one of th
Externí odkaz:
http://arxiv.org/abs/2004.03009