Zobrazeno 1 - 10
of 22
pro vyhledávání: '"Nicolina Chrysaphi"'
Publikováno v:
The Astrophysical Journal Letters, Vol 974, Iss 1, p L18 (2024)
Radio observations from space allow to characterize solar radio bursts below the ionospheric cutoff, which are otherwise inaccessible, but suffer from low, insufficient temporal resolution. In this Letter we present novel, high-temporal resolution ob
Externí odkaz:
https://doaj.org/article/8ef396d0596047d0ac9d243c630ae7e3
Autor:
Francesco Azzollini, A. Gordon Emslie, Daniel L. Clarkson, Nicolina Chrysaphi, Eduard P. Kontar
Publikováno v:
The Astrophysical Journal, Vol 968, Iss 2, p 72 (2024)
Radio signals propagating via the solar corona and solar wind are significantly affected by compressive waves, impacting the properties of solar bursts as well as sources viewed through the turbulent solar atmosphere. While static fluctuations scatte
Externí odkaz:
https://doaj.org/article/9100aca7096c44a2a3dcc75eefa8069d
Autor:
Bin Zhuang, Noé Lugaz, David Lario, Ryun-Young Kwon, Nicolina Chrysaphi, Jonathan Niehof, Tingyu Gou, Lulu Zhao
Publikováno v:
The Astrophysical Journal, Vol 963, Iss 2, p 119 (2024)
The main driver of the acceleration of solar energetic particles (SEPs) is believed to be shocks driven by coronal mass ejections. Extreme-ultraviolet (EUV) waves are thought to be the propagating footprint of the shock on the solar surface. One of t
Externí odkaz:
https://doaj.org/article/31a603a6b63f4f40825f2b2fbc6b89a3
Autor:
Eduard P. Kontar, A. Gordon Emslie, Daniel L. Clarkson, Xingyao Chen, Nicolina Chrysaphi, Francesco Azzollini, Natasha L. S. Jeffrey, Mykola Gordovskyy
Publikováno v:
The Astrophysical Journal, Vol 956, Iss 2, p 112 (2023)
Solar radio bursts are strongly affected by radio-wave scattering on density inhomogeneities, changing their observed time characteristics, sizes, and positions. The same turbulence causes angular broadening and scintillation of galactic and extragal
Externí odkaz:
https://doaj.org/article/a889556a2a57456fb956950067ea7522
Autor:
Daniel L. Clarkson, Eduard P. Kontar, Nicole Vilmer, Mykola Gordovskyy, Xingyao Chen, Nicolina Chrysaphi
Publikováno v:
The Astrophysical Journal, Vol 946, Iss 1, p 33 (2023)
Understanding electron acceleration associated with magnetic energy release at subsecond scales presents major challenges in solar physics. Solar radio spikes observed as subsecond, narrow-bandwidth bursts with Δ f / f ∼ 10 ^−3 –10 ^−2 are i
Externí odkaz:
https://doaj.org/article/7a227a2fa3fa49d28ec405fb0f4d23ff
The frequency ratio and time delay of solar radio emissions with fundamental and harmonic components
Publikováno v:
Monthly Notices of the Royal Astronomical Society. 520:3117-3126
Solar radio bursts generated through the plasma emission mechanism produce radiation near the local plasma frequency (fundamental emission) and double the plasma frequency (harmonic). While the theoretical ratio of these two frequencies is close to 2
Autor:
Nicolina Chrysaphi, Milan Maksimovic
Injections of non-thermal electrons into the heliosphere often manifest as intense radio emissions, the most common of which are known as Type III solar radio bursts. The emission frequency of solar radio bursts is closely related to the local plasma
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::fb9bd1e59789d5ffa1705598ea6034bb
https://doi.org/10.5194/egusphere-egu22-12239
https://doi.org/10.5194/egusphere-egu22-12239
Publikováno v:
URSI Radio Science Letters. 4
Autor:
Mingzhe Liu, Zhongwei Yang, Ying D. Liu, Bertrand Lembége, Karine Issautier, L. B. Wilson, Siqi Zhao, Vamsee Krishna Jagarlamudi, Xiaowei Zhao, Jia Huang, Nicolina Chrysaphi
Publikováno v:
The astrophysical journal / Supplement series 263(1), 11 (2022). doi:10.3847/1538-4365/ac94c8
The astrophysical journal / Supplement series 263(1), 11 (2022). doi:10.3847/1538-4365/ac94c8
We investigate the properties of an interplanetary (IP) shock (M$_f$ = 2.1, $θ$Bn =80◦), which was detected by Wind on September 12th, 1999, magneti
We investigate the properties of an interplanetary (IP) shock (M$_f$ = 2.1, $θ$Bn =80◦), which was detected by Wind on September 12th, 1999, magneti
Autor:
Nicolina Chrysaphi
Radio emissions excited in the solar corona are used to extract information on the local coronal conditions, including at heights that cannot be probed in situ. However, radio-wave propagation effects distort the intrinsic radio source properties in
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::13a64647aea86f8873a6749963feb2a0