Zobrazeno 1 - 10
of 53
pro vyhledávání: '"Kayshap, Pradeep"'
Autor:
Kayshap, Pradeep, Young, Peter R.
The center-to-limb variations (CLV) of transition region line Gaussian fit parameters in solar plage are reported for the first time. The Si iv 1402.77 A line observed by Interface Region Imaging Spectrograph (IRIS) is used. The spectral intensity in
Externí odkaz:
http://arxiv.org/abs/2411.01838
We analysed Interface-Region Imaging Spectrograph (IRIS) and the Solar Dynamics Observatory/Atmospheric Imaging Assembly (SDO/AIA) observations of a small coronal jet that occurred at the solar west limb on 2014 August 29. The jet source region, a sm
Externí odkaz:
http://arxiv.org/abs/2405.04766
Publikováno v:
Monthly Notices of the Royal Astronomical Society 23 March 2024
The asymmetry of line profiles, i.e., the secondary component, is crucial to understanding the energy release of coronal holes (CH), quiet sun (QS), and bright points (BPs). We investigate the asymmetry of Si IV 1393.75 {\AA} of the transition-region
Externí odkaz:
http://arxiv.org/abs/2402.01628
Autor:
Kayshap, Pradeep, Young, Peter R.
The center-to-limb variations (CLV) of Gaussian fit parameters of the transition region Si~{\sc iv} 1402.77~{\AA} spectral line in quiet Sun (QS) and coronal hole (CH) regions are presented. The results are derived from a full-disk mosaic scan obtain
Externí odkaz:
http://arxiv.org/abs/2309.06360
Autor:
Mondal, Sripan, Srivastava, A. K., Mishra, Sudheer K., Sangal, K., Kayshap, Pradeep, Guo, Yang, Pontin, David I., Uritsky, Vadim M., Ofman, Leon, Wang, T. -J., Yuan, Ding
Multiwavelength observations of the propagating disturbances (PDs), discovered by Atmospheric Imaging Assembly (AIA) onboard Solar Dynamics Observatory (SDO), are analyzed to determine its driving mechanism and physical nature. Two magnetic strands i
Externí odkaz:
http://arxiv.org/abs/2305.02277
Autor:
Mishra, Sudheer K., Sangal, Kartika, Kayshap, Pradeep, Jelinek, Petr, Srivastava, A. K., Rajaguru, S. P.
We study a blowout jet that occurs at the west limb of the Sun on August 29$^{th}$, 2014 using high-resolution imaging/spectroscopic observations provided by SDO/AIA and IRIS. An inverse $\gamma$-shape flux-rope appears before the jet{--} morphologic
Externí odkaz:
http://arxiv.org/abs/2301.01534
Autor:
Shokri, Zahra, Alipour, Nasibe, Safari, Hossein, Kayshap, Pradeep, Podladchikova, Olena, Nigro, Giuseppina, Tripathi, Durgesh
We investigate the relationship between different transients such as blinkers detected in images taken at 304~{\AA}, extreme ultraviolet coronal bright points (ECBPs) at 193~{\AA}, X-ray coronal bright points (XCBPs) at 94~{\AA} on AIA, and magnetic
Externí odkaz:
http://arxiv.org/abs/2201.04459
We use multiwavelength imaging observations from the Atmospheric Imaging Assembly (AIA) onboard the Solar Dynamics Observatory (SDO) to study the evolution of Kelvin-Helmholtz (K-H) instability in a fan-spine magnetic field configuration. This magnet
Externí odkaz:
http://arxiv.org/abs/2109.11416
Surges have regularly been observed mostly in H$_{\alpha}$ 6563~{\AA} and Ca~{\sc ii} 8542~{\AA}. However, surge$'$s response to other prominent lines of the interface-region (Mg~{\sc ii} k 2796.35~{\AA} $\&$ h 2803.52~{\AA}, O~{\sc iv} 1401.15~{\AA}
Externí odkaz:
http://arxiv.org/abs/2106.06222
We study the dynamics of shock waves observed in the umbra of a sunspot using the spectroscopic observations from the Interface Region Imaging Spectrometer (IRIS). The presence of the shock significantly deforms the shape of the spectral lines of Mg
Externí odkaz:
http://arxiv.org/abs/2011.10192