Zobrazeno 1 - 10
of 1 371
pro vyhledávání: '"McComas, D J"'
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
Autor:
Bandyopadhyay, R., Meyer, C. M., Matthaeus, W. H., McComas, D. J., Cranmer, S. R., Halekas, J. S., Huang, J., Larson, D. E., Livi, R., Rahmati, A., Whittlesey, P. L., Stevens, M. L., Kasper, J. C., Bale, S. D.
A central problem of space plasma physics is how protons and electrons are heated in a turbulent, magnetized plasma. The differential heating of charged species due to dissipation of turbulent fluctuations plays a key role in solar wind evolution. Me
Externí odkaz:
http://arxiv.org/abs/2309.07985
Direct-sampling observations of interstellar neutral (ISN) species and their secondary populations give information about the physical state of the local interstellar medium and processes occuring in the outer heliosheath. Such observations are perfo
Externí odkaz:
http://arxiv.org/abs/2309.06931
Autor:
Swaczyna, P., Bzowski, M., Heerikhuisen, J., Kubiak, M. A., Rahmanifard, F., Zirnstein, E. J., Fuselier, S. A., Galli, A., McComas, D. J., Möbius, E., Schwadron, N. A.
In situ observations of interstellar neutral (ISN) helium atoms by the IBEX-Lo instrument onboard the Interstellar Boundary Explorer (IBEX) mission are used to determine the velocity and temperature of the pristine very local interstellar medium (VLI
Externí odkaz:
http://arxiv.org/abs/2307.06694
Autor:
Rahmanifard, F., Swaczyna, P., Zirnstein, E. J., Heerikhuisen, J., Galli, A., Sokół, J. M., Schwadron, N. A., Möbius, E., McComas, D. J., Fuselier, S. A.
Angular scattering in charge exchange and elastic collisions between interstellar ions and neutral (ISN) atoms has been assumed to be negligible in previous studies. Here, we investigated the momentum transfer associated with the angular scattering o
Externí odkaz:
http://arxiv.org/abs/2306.04598
Autor:
Swaczyna, P., Bzowski, M., Fuselier, S. A., Galli, A., Heerikhuisen, J., Kubiak, M. A., McComas, D. J., Möbius, E., Rahmanifard, F., Schwadron, N. A.
The IBEX-Lo instrument on the Interstellar Boundary Explorer (IBEX) mission measures interstellar neutral (ISN) helium atoms. The detection of helium atoms is made through negative hydrogen (H$^-$) ions sputtered by the helium atoms from the IBEX-Lo
Externí odkaz:
http://arxiv.org/abs/2303.08195