Zobrazeno 1 - 10
of 2 043
pro vyhledávání: '"McComas, A J"'
Autor:
Xu, Z. G., Cohen, C. M. S, Leske, R. A., Muro, G. D., Cummings, A. C., McComas, D. J., Schwadron, N. A., Christian, E. R., Wiedenbeck, M. E., McNutt, R. L., Mitchell, D. G., Mason, G. M., Kouloumvakos, A., Wimmer-Schweingruber, R. F., Ho, G. C., Rodriguez-Pacheco, J.
In this study, we employ the combined charged particle measurements from Integrated Science Investigation of the Sun (\ISOIS) onboard the Parker Solar Probe (PSP) and Energetic Particle Detector (EPD) onboard the Solar Orbiter (SolO) to study the com
Externí odkaz:
http://arxiv.org/abs/2410.19672
Autor:
Sarkango, Y., Szalay, J. R., Damiano, P. A., Sulaiman, A. H., Delamere, P. A., Saur, J., McComas, D. J., Ebert, R. W., Allegrini, F.
Banded energy distributions of H$^{+}$, O$^{++}$, S$^{+++}$, and O$^+$ or S$^{++}$ ions between 100 eV to ~20 keV are consistently observed in Jupiter's magnetosphere mapping to M-shells between M=10-20. The bands correspond to flux enhancements at s
Externí odkaz:
http://arxiv.org/abs/2410.17304
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:
Jebaraj, I. C., Agapitov, O. V., Gedalin, M., Vuorinen, L., Miceli, M., Vainio, R., Cohen, C. M. S., Voshchepynets, A., Kouloumvakos, A., Dresing, N., Marmyleva, A., Krasnoselskikh, V., Balikhin, M., Mitchell, J. G., Labrador, A. W., Wijsen, N., Palmerio, E., Colomban, L., Pomoell, J., Kilpua, E. K. J., Pulupa, M., Mozer, F. S., Raouafi, N. E., McComas, D. J., Bale, S. D.
In this study, we present the first-ever direct measurements of synchrotron-emitting heliospheric traveling shocks, intercepted by the Parker Solar Probe (PSP) during its close encounters. Given that much of our understanding of powerful astrophysica
Externí odkaz:
http://arxiv.org/abs/2410.15933
Autor:
Livadiotis, George, McComas, David J.
Publikováno v:
Scientific Reports, volume 14, Article number: 22641 (2024)
We introduce the theory of thermodynamic relativity, a unified framework for describing both entropies and velocities, and their respective disciplines of thermodynamics and kinematics, which share a surprisingly identical description with relativity
Externí odkaz:
http://arxiv.org/abs/2410.08242
Autor:
Islam, H., Schwadron, N., Moebius, E., Rahmanifard, F., Sokol, J. M., Galli, A., McComas, D. J., Wurz, P., Fuselier, S. A., Fairchild, K., Heirtzler, D.
The IBEX-Lo instrument on the Interstellar Boundary Explorer (IBEX) mission observes primary and secondary interstellar helium in its 4 lowest energy steps. Observations of these helium populations have been systematically analyzed and compared to si
Externí odkaz:
http://arxiv.org/abs/2409.11784
Autor:
Cuesta, M. E., Cummings, A. T., Livadiotis, G., McComas, D. J., Cohen, C. M. S., Khoo, L. Y., Sharma, T., Shen, M. M., Bandyopadhyay, R., Rankin, J. S., Szalay, J. R., Farooki, H. A., Xu, Z., Muro, G. D., Stevens, M. L., Bale, S. D.
In this paper we model the high-energy tail of observed solar energetic proton energy distributions with a kappa distribution function. We employ a technique for deriving the thermodynamic parameters of solar energetic proton populations measured by
Externí odkaz:
http://arxiv.org/abs/2407.20343
Autor:
Livadiotis, G., Cummings, A. T., Cuesta, M. E., Bandyopadhyay, R., Farooki, H. A., Khoo, L. Y., McComas, D. J., Rankin, J. S., Sharma, T., Shen, M. M., Cohen, C. M. S., Muro, G. D., Xu, Z.
We develop the kappa-tail fitting technique, which analyzes observations of power-law tails of distributions and energy-flux spectra and connects them to theoretical modeling of kappa distributions, to determine the thermodynamics of the examined spa
Externí odkaz:
http://arxiv.org/abs/2407.04188
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:
Cuesta, Manuel Enrique, McComas, D. J., Khoo, L. Y., Bandyopadhyay, R., Sharma, T., Shen, M. M., Rankin, J. S., Cummings, A. T., Szalay, J. R., Cohen, C. M. S., Schwadron, N. A., Chhiber, R., Pecora, F., Matthaeus, W. H., Leske, R. A., Stevens, M. L.
Solar energetic particle (SEP) events have been observed by the Parker Solar Probe (PSP) spacecraft since its launch in 2018. These events include sources from solar flares and coronal mass ejections (CMEs). Onboard PSP is the IS\(\odot\)IS instrumen
Externí odkaz:
http://arxiv.org/abs/2402.00210