Zobrazeno 1 - 10
of 30
pro vyhledávání: '"Čalogović, Jasa"'
Autor:
Dumbovic, Mateja, Karbonini, Luci, Calogovic, Jasa, Matkovic, Filip, Martinic, Karmen, Remeshan, Akshay Kumar, Brajsa, Roman, Vrsnak, Bojan
We compile the catalog of Hvar Observatory solar observations in the time period corresponding to regular digitally stored chromospheric and photospheric observations 2010-2019. We make basic characterisation of observed phenomena and compare them to
Externí odkaz:
http://arxiv.org/abs/2404.18576
Autor:
Čalogović, Jaša, Dumbović, Mateja, Sudar, Davor, Vršnak, Bojan, Martinić, Karmen, Temmer, Manuela, Veronig, Astrid
Publikováno v:
Solar Physics 2021
The Drag-based Model (DBM) is a 2D analytical model for heliospheric propagation of Coronal Mass Ejections (CMEs) in ecliptic plane predicting the CME arrival time and speed at Earth or any other given target in the solar system. It is based on the e
Externí odkaz:
http://arxiv.org/abs/2107.06684
Autor:
Dumbovic, Mateja, Calogovic, Jasa, Martinic, Karmen, Vrsnak, Bojan, Sudar, Davor, Temmer, Manuela, Veronig, Astrid
Forecasting the arrival time of CMEs and their associated shocks is one of the key aspects of space weather research. One of the commonly used models is, due to its simplicity and calculation speed, the analytical drag-based model (DBM) for heliosphe
Externí odkaz:
http://arxiv.org/abs/2103.14292
Autor:
Paouris, Evangelos, Calogovic, Jasa, Dumbovic, Mateja, Mays, M. Leila, Vourlidas, Angelos, Papaioannou, Athanasios, Anastasiadis, Anastasios, Balasis, Georgios
The Effective Acceleration Model (EAM) predicts the Time-of-Arrival (ToA) of the Coronal Mass Ejection (CME) driven shock and the average speed within the sheath at 1 AU. The model is based on the assumption that the ambient solar wind interacts with
Externí odkaz:
http://arxiv.org/abs/2012.05857
Autor:
Piantschitsch, Isabell, Vrsnak, Bojan, Hanslmeier, Arnold, Lemmerer, Birgit, Veronig, Astrid, Hernandez-Perez, Aaron, Calogovic, Jasa
Publikováno v:
The Astrophysical Journal, Volume 860, Issue 1, article id. 24, 17 pp. (2018)
We performed 2.5D magnetohydrodynamic (MHD) simulations showing the propagation of fast-mode MHD waves of different initial amplitudes and their interaction with a coronal hole (CH), using our newly developed numerical code. We find that this interac
Externí odkaz:
http://arxiv.org/abs/1811.12735
Autor:
Piantschitsch, Isabell, Vrsnak, Bojan, Hanslmeier, Arnold, Lemmerer, Birgit, Veronig, Astrid, Hernandez-Perez, Aaron, Calogovic, Jasa
Publikováno v:
The Astrophysical Journal, Volume 857, Issue 2, article id. 130, 16 pp. (2018)
We used our newly developed magnetohydrodynamic (MHD) code to perform 2.5D simulations of a fast-mode MHD wave interacting with coronal holes (CH) of varying Alfv\'en speed which result from assuming different CH densities. We find that this interact
Externí odkaz:
http://arxiv.org/abs/1811.12726
Autor:
Piantschitsch, Isabell, Vrsnak, Bojan, Hanslmeier, Arnold, Lemmerer, Birgit, Veronig, Astrid, Hernandez-Perez, Aaron, Calogovic, Jasa, Zic, Tomislav
Publikováno v:
The Astrophysical Journal, Volume 850, Issue 1, article id. 88, 12 pp. (2017)
We developed a new numerical code that is able to perform 2.5D simulations of a magnetohydrodynamic (MHD) wave propagation in the corona, and its interaction with a low density region, such as a coronal hole (CH). We show that the impact of the wave
Externí odkaz:
http://arxiv.org/abs/1811.12073
Autor:
Dumbović, Mateja, Čalogović, Jaša, Vršnak, Bojan, Temmer, Manuela, Mays, M. Leila, Veronig, Astrid, Piantschitsch, Isabell
The drag-based model (DBM) for heliospheric propagation of coronal mass ejections (CMEs) is a widely used analytical model which can predict CME arrival time and speed at a given heliospheric location. It is based on the assumption that the propagati
Externí odkaz:
http://arxiv.org/abs/1801.07473
Autor:
von Forstner, Johan L. Freiherr, Guo, Jingnan, Wimmer-Schweingruber, Robert F., Hassler, Donald M., Temmer, Manuela, Dumbović, Mateja, Jian, Lan K., Appel, Jan K., Čalogović, Jaša, Ehresmann, Bent, Heber, Bernd, Lohf, Henning, Posner, Arik, Steigies, Christian T., Vršnak, Bojan, Zeitlin, Cary J.
The propagation of 15 interplanetary coronal mass ejections (ICMEs) from Earth's orbit (1 AU) to Mars (~ 1.5 AU) has been studied with their propagation speed estimated from both measurements and simulations. The enhancement of magnetic fields relate
Externí odkaz:
http://arxiv.org/abs/1712.07301
We employ remote observations of coronal mass ejections (CMEs) and the associated solar flares to forecast the CME-related Forbush decreases, i.e., short-term depressions in the galactic cosmic-ray flux. The relationship between the Forbush effect at
Externí odkaz:
http://arxiv.org/abs/1510.03282