Zobrazeno 1 - 10
of 4 091
pro vyhledávání: '"DRAKE, J"'
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:
Anastasopoulou, K., Guarcello, M. G., Flaccomio, E., Sciortino, S., Benatti, S., De Becker, M., Wright, N. J., Drake, J., Albacete-Colombo, J. F., Andersen, M., Argiroffi, C., Bayo, A., Castellanos, R., Gennaro, M., Grebel, E. K., Miceli, M., Najarro, F., Negueruela, I., Prisinzano, L., Ritchie, B., Robberto, M., Sabbi, E., Zeidler, P.
We present the most comprehensive and deepest X-ray study to date of the properties of the richest Wolf-Rayet (WR) population observed in a single stellar cluster, Westerlund 1 (Wd1). This work is based on 36 Chandra observations obtained from the "E
Externí odkaz:
http://arxiv.org/abs/2408.11087
Autor:
Stawarz, J. E., Muñoz, P. A., Bessho, N., Bandyopadhyay, R., Nakamura, T. K. M., Eriksson, S., Graham, D., Büchner, J., Chasapis, A., Drake, J. F., Shay, M. A., Ergun, R. E., Hasegawa, H., Khotyaintsev, Yu. V., Swisdak, M., Wilder, F.
Alongside magnetic reconnection, turbulence is another fundamental nonlinear plasma phenomenon that plays a key role in energy transport and conversion in space and astrophysical plasmas. From a numerical, theoretical, and observational point of view
Externí odkaz:
http://arxiv.org/abs/2407.20787
Autor:
Nakamura, R., Burch, J. L., Birn, J., Chen, L. -J., Graham, D. B., Guo, F., Hwang, K. -J., Ji, H., Khotyaintsev, Y., Liu, Y. -H., Oka, M., Payne, D., Sitnov, M. I., Swisdak, M., Zenitani, S., Drake, J. F., Fuselier, S. A., Genestreti, K. J., Gershman, D. J., Hasegawa, H., Hoshino, M., Norgren, C., Shay, M. A., Shuster, J. R., Stawarz, J. E.
This short article highlights the unsolved problems of magnetic reconnection in collisionless plasma. The advanced in-situ plasma measurements and simulations enabled scientists to gain a novel understanding of magnetic reconnection. Still, outstandi
Externí odkaz:
http://arxiv.org/abs/2407.09670
Publikováno v:
Astrophys.J.972:109,2024
Hard X-ray-emitting ($\delta$-type) symbiotic binaries, which exhibit a strong hard X-ray excess, have posed a challenge to our understanding of accretion physics in degenerate dwarfs. RT Cru, which is a member of the $\delta$-type symbiotics, shows
Externí odkaz:
http://arxiv.org/abs/2406.17161
Publikováno v:
Phys. Plasmas 31, 062901 (2024)
A set of equations are developed that extend the macroscale magnetic reconnection simulation model kglobal to include particle ions. The extension from earlier versions of kglobal, which included only particle electrons, requires the inclusion of the
Externí odkaz:
http://arxiv.org/abs/2401.14500
Autor:
Bhargava, Yash, Dewangan, Gulab Chand, Anupama, G. C., Kamath, U. S., Sonith, L. S., Singh, Kulinder Pal, Drake, J. J., Beardmore, A., Luna, G. J. M., Orio, M., Page, K. L.
Nova Her 2021 or V1674 Her was one of the fastest novae to be observed so far. We report here the results from our timing and spectral studies of the source observed at multiple epochs with AstroSat. We report the detection of a periodicity in the so
Externí odkaz:
http://arxiv.org/abs/2312.10291
Autor:
Guarcello, M. G., Flaccomio, E., Albacete-Colombo, J. F., Almendros-Abad, V., Anastasopoulou, K., Andersen, M., Argiroffi, C., Bayo, A., Bartlett, E. S., Bastian, N., De Becker, M., Best, W., Bonito, R., Borghese, A., Calzetti, D., Castellanos, R., Cecchi-Pestellini, C., Clark, S., Clarke, C. J., Zelati, F. Coti, Damiani, F., Drake, J. J., Gennaro, M., Ginsburg, A., Grebel, E. K., Hora, J. L., Israel, G. L., Lawrence, G., Locci, D., Mapelli, M., Martinez-Galarza, J. R., Micela, G., Miceli, M., Moraux, E., Muzic, K., Najarro, F., Negueruela, I., Nota, A., Pallanca, C., Prisinzano, L., Ritchie, B., Robberto, M., Rom, T., Sabbi, E., Scholz, A., Sciortino, S., Trigilio, C., Umana, G., Winter, A., Wright, N. J., Zeidler, P.
Context. With a mass exceeding several 10^4 solar masses and a rich and dense population of massive stars, supermassive young star clusters represent the most massive star-forming environment that is dominated by the feedback from massive stars and g
Externí odkaz:
http://arxiv.org/abs/2312.08947
Switchbacks (SBs) are localized structures in the solar wind containing deflections of the magnetic field direction relative to the background solar wind magnetic field. The amplitudes of the magnetic field deflection angles for different SBs vary fr
Externí odkaz:
http://arxiv.org/abs/2312.01011
Autor:
Núñez, Alejandro, Agüeros, M. A., Curtis, J. L., Covey, K. R., Douglas, S. T., Chu, S. R., DeLaurentiis, S., Wang, M., Drake, J. J.
Low-mass (< 1.2 Solar mass) main-sequence stars lose angular momentum over time, leading to a decrease in their magnetic activity. The details of this rotation-activity relation remain poorly understood. Using observations of members of the $\approx$
Externí odkaz:
http://arxiv.org/abs/2311.18690