Zobrazeno 1 - 10
of 613
pro vyhledávání: '"Vršnak, B"'
Context. In the scope of space weather forecasting, it is crucial to be able to more reliably predict the arrival time, speed, and magnetic field configuration of coronal mass ejections (CMEs). From the time a CME is launched, the dominant factor inf
Externí odkaz:
http://arxiv.org/abs/2309.15475
Autor:
Linker, J. A., Heinemann, S. G., Temmer, M., Owens, M. J., Caplan, R. M., Arge, C. N., Asvestari, E., Delouille, V., Downs, C., Hofmeister, S. J., Jebaraj, I. C., Madjarska, M., Pinto, R., Pomoell, J., Samara, E., Scolini, C., Vrsnak, B.
Many scientists use coronal hole (CH) detections to infer open magnetic flux. Detection techniques differ in the areas that they assign as open, and may obtain different values for the open magnetic flux. We characterize the uncertainties of these me
Externí odkaz:
http://arxiv.org/abs/2103.05837
Autor:
Temmer, M., Holzknecht, L., Dumbovic, M., Vrsnak, B., Sachdeva, N., Heinemann, S. G., Dissauer, K., Scolini, C., Asvestari, E., Veronig, A. M., Hofmeister, S. J.
We determine the 3D geometry and deprojected mass of 29 well-observed coronal mass ejections (CMEs) and their interplanetary counterparts (ICMEs) using combined STEREO-SOHO white-light data. From the geometry parameters we calculate the volume of the
Externí odkaz:
http://arxiv.org/abs/2011.06880
Autor:
Holzknecht, L., Temmer, M., Dumbovic, M., Wellenzohn, S., Krikova, K., Heinemann, S. G., Rodari, M., Vrsnak, B., Veronig, A. M.
The mass evolution of a coronal mass ejection (CME) is an important parameter characterizing the drag force acting on a CME as it propagates through interplanetary space. Spacecraft measure in-situ plasma densities of CMEs during crossing events, but
Externí odkaz:
http://arxiv.org/abs/1904.11418
Autor:
Hofmeister, S. J., Veronig, A., Reiss, M. A., Temmer, M., Vennerstrom, S., Vršnak, B., Heber, B.
Publikováno v:
2017, ApJ 835 268
We investigate the statistics of 288 low-latitude coronal holes extracted from SDO/AIA-193 filtergrams over the time range 2011/01/01 to 2013/12/31. We analyse the distribution of characteristic coronal hole properties, such as the areas, mean AIA-19
Externí odkaz:
http://arxiv.org/abs/1702.02050
Autor:
Wang, Yuming, Zhang, Quanhao, Liu, Jiajia, Shen, Chenglong, Shen, Fang, Yang, Zicai, Zic, T., Vrsnak, B., Webb, D. F., Liu, Rui, Wang, S., Zhang, Jie, Hu, Qiang, Zhuang, Bin
The largest geomagnetic storm so far in the solar cycle 24 was produced by a fast coronal mass ejection (CME) originating on 2015 March 15. It was an initially west-oriented CME and expected to only cause a weak geomagnetic disturbance. Why did this
Externí odkaz:
http://arxiv.org/abs/1607.07750
Predicting transit times of Coronal Mass Ejections (CMEs) from their initial parameters is a very important subject, not only from the scientific perspective, but also because CMEs represent a hazard for human technology. We used a neural network to
Externí odkaz:
http://arxiv.org/abs/1511.07620
Publikováno v:
ApJS 218 (2015) 32
The so-called drag-based model (DBM) simulates analytically the propagation of coronal mass ejections (CMEs) in interplanetary space and allows the prediction of their arrival times and impact speeds at any point in the heliosphere ("target"). The DB
Externí odkaz:
http://arxiv.org/abs/1506.08582
We present an empirical model based on the visible area covered by coronal holes close to the central meridian in order to predict the solar wind speed at 1 AU with a lead time up to four days in advance with a 1hr time resolution. Linear prediction
Externí odkaz:
http://arxiv.org/abs/1501.06697
Akademický článek
Tento výsledek nelze pro nepřihlášené uživatele zobrazit.
K zobrazení výsledku je třeba se přihlásit.
K zobrazení výsledku je třeba se přihlásit.