Zobrazeno 1 - 10
of 10 861
pro vyhledávání: '"Graham, S. A."'
Autor:
Granovsky, Samuel, Kosovichev, Alexander G., Sadykov, Viacheslav M., Kerr, Graham S., Allred, Joel C.
Between 2017 and 2024, the Helioseismic and Magnetic Imager (HMI) onboard the Solar Dynamics Observatory has observed numerous white-light solar flares (WLFs). HMI spectro-polarimetric observations of certain WLFs, in particular the X9.3 flare of Sep
Externí odkaz:
http://arxiv.org/abs/2410.07440
Autor:
Simões, Paulo J. A., Fletcher, Lyndsay, Hudson, Hugh S., Kerr, Graham S., Penn, Matt, Lopez, Karla F.
Solar flares are powerful particle accelerators, and in the accepted standard flare model most of the flare energy is transported from a coronal energy-release region by accelerated electrons which stop collisionally in the chromosphere, heating and
Externí odkaz:
http://arxiv.org/abs/2406.11361
Solar flare ribbon fronts appear ahead of the bright structures that normally characterise solar flares, and can persist for an extended period of time in spatially localised patches before transitioning to `regular' bright ribbons. They likely repre
Externí odkaz:
http://arxiv.org/abs/2405.02799
Autor:
Graham, S. M., Newman, A. J., Stephen, C. J., Edmonds, A. M., Twitchen, D. J., Markham, M. L., Morley, G. W.
Nitrogen vacancy centres in diamond can be used for vector magnetometry. In this work we present a portable vector diamond magnetometer. Its vector capability, combined with feedback control and robust structure enables operation on moving platforms.
Externí odkaz:
http://arxiv.org/abs/2401.16090
Autor:
Mairs, Steve, Lee, Seonjae, Johnstone, Doug, Broughton, Colton, Lee, Jeong-Eun, Herczeg, Gregory J., Bell, Graham S., Chen, Zhiwei, Contreras-Peña, Carlos, Francis, Logan, Hatchell, Jennifer, Kim, Mi-Ryang, Liu, Sheng-Yuan, Park, Geumsook, Qiu, Keping, Wang, Yao-Te, Zhang, Xu, Team, The JCMT Transient
The JCMT Transient Survey has been monitoring eight Gould Belt low-mass star-forming regions since December 2015 and six somewhat more distant intermediate-mass star-forming regions since February 2020 with SCUBA-2 on the JCMT at \ShortS and \LongS a
Externí odkaz:
http://arxiv.org/abs/2401.03549
M-dwarf flares observed by the \textit{Transiting Exoplanet Survey Satellite} (\textit{TESS}) sometimes exhibit a "peak-bump" light-curve morphology, characterized by a secondary, gradual peak well after the main, impulsive peak. A similar "late phas
Externí odkaz:
http://arxiv.org/abs/2310.19316
The bulk of solar flare energy is deposited in the chromosphere. Flare ribbons and footpoints in the chromosphere therefore offer great diagnostic potential of flare energy release and transport processes. High quality observations from the IRIS spac
Externí odkaz:
http://arxiv.org/abs/2310.07111
Autor:
Tibutius Thanesh Pramanayagam Jayadas, Chandima Jeewandara, Bhagya Senadheera, Heshan Kuruppu, Rivindu Wickramanayake, Padukkage Harshani Chathurangika, Nushara Senatilleke, Navanjana Warnakulasuriya, Farha Bary, Ananda Wijewickrama, Suranga Manilgama, Manouri Gamage, Nilanka Perera, Graham S. Ogg, Gathsaurie Neelika Malavige
Publikováno v:
Virology Journal, Vol 21, Iss 1, Pp 1-9 (2024)
Abstract Background Influenza A has been named as a priority pathogen by the WHO due to the potential to cause pandemics. Genomic sequencing of influenza strains is important to understand the evolution of the influenza strains and also to select the
Externí odkaz:
https://doaj.org/article/d67187620db14432897df705e283947e
Autor:
Shashika Dayarathna, Heshan Kuruppu, Tehani Silva, Laksiri Gomes, N. L. Ajantha Shyamali, Chandima Jeewandara, Dinuka Ariyaratne, Shyrar Tanussiya Ramu, Ananda Wijewickrama, Graham S. Ogg, Gathsaurie Neelika Malavige
Publikováno v:
BMC Infectious Diseases, Vol 24, Iss 1, Pp 1-10 (2024)
Abstract Background As many studies have shown conflicting results regarding the extent of viraemia and clinical disease severity, we sought to investigate if viraemia during early dengue illness is associated with subsequent clinical disease severit
Externí odkaz:
https://doaj.org/article/184ec8c9a7154aa08507dd2b40384e7b
Here we present the study of a compact emission source during an X1.3 flare on 2022-March-30. Within a $\sim41$~s period (17:34:48 UT to 17:35:29 UT), IRIS observations show spectral lines of Mg II, C II and Si IV with extremely broadened, asymmetric
Externí odkaz:
http://arxiv.org/abs/2309.05745