Zobrazeno 1 - 10
of 89
pro vyhledávání: '"Joshi, Navin Chandra"'
Publikováno v:
MNRAS, 501, 4703 (2021)
We report multi-wavelength study of a complex M-class solar eruptive flare that consists of three different sets of flare ribbons, viz. circular, parallel, and remote ribbons. Magnetic field modeling of source active region NOAA 12242 exhibits the pr
Externí odkaz:
http://arxiv.org/abs/2101.09923
We investigate the onsets of three consecutive coronal mass ejection (CME) eruptions in 12 hours from a large bipolar active region (AR) observed by SDO, STEREO, RHESSI, and GOES. Evidently, the AR initially had a triple-decker configuration: three f
Externí odkaz:
http://arxiv.org/abs/2008.04525
Autor:
Joshi, Navin Chandra, Zhu, Xiaoshuai, Schmieder, Brigitte, Aulanier, Guillaume, Janvier, Miho, Joshi, Bhuwan, Magara, Tetsuya, Chandra, Ramesh, Inoue, Satoshi
Atypical flares cannot be naturally explained with standard models. To predict such flares, we need to define their physical characteristics, in particular, their magnetic environment, and identify pairs of reconnected loops. Here, we present in deta
Externí odkaz:
http://arxiv.org/abs/1811.01228
We analyzed a small flux rope eruption converted into a helical blowout jet in a fan-spine configuration using multi-wavelength observations taken by SDO, which occurred near the limb on 2016 January 9. In our study, first, we estimated the fan-spine
Externí odkaz:
http://arxiv.org/abs/1802.01798
Autor:
Joshi, Navin Chandra, Sterling, Alphonse C., Moore, Ronald L., Magara, Tetsuya, Moon, Young-Jae
Utilizing multiwavelength observations and magnetic field data from SDO/AIA, SDO/HMI, GOES and RHESSI, we investigate a large-scale ejective solar eruption of 2014 December 18 from active region NOAA 12241. This event produced a distinctive three-rib
Externí odkaz:
http://arxiv.org/abs/1706.09176
Autor:
Joshi, Navin Chandra, Filippov, Boris, Schmieder, Brigitte, Magara, Tetsuya, Moon, Young-Jae, Uddin, Wahab
We present observations of interactions between the two filament channels of different chiralities and associated dynamics that occurred during 2014 April 18 -- 20. While two flux ropes of different helicity with parallel axial magnetic fields can on
Externí odkaz:
http://arxiv.org/abs/1605.01812
The nature of various plausible causal links between sympathetic events is still a controversial issue. In this work, we present multi-wavelength observations of sympathetic eruptions, associated flares and coronal mass ejections (CMEs) occurring on
Externí odkaz:
http://arxiv.org/abs/1602.07792
In this paper, we present observations and analysis of an interesting sigmoid formation, eruption and the associated flare that occurred on 2014 April 18 using multi-wavelength data sets. We discuss the possible role of the sigmoid eruption in trigge
Externí odkaz:
http://arxiv.org/abs/1509.01792
We present the observations of compound flux rope formation via merging of two nearby filament channels, associated dynamics and its stability that occurred on 2014 January 1 using multiwavelength data. We have also discussed the dynamics of cool and
Externí odkaz:
http://arxiv.org/abs/1409.1359
A correlative study between the geomagnetic indices and the peak values of various plasma and field parameters during rising, maximum and decay phases as well as during complete solar cycle 23 have been presented. We have also presented the lag/lead
Externí odkaz:
http://arxiv.org/abs/1003.2868