scholarly journals Erratum: Background for gravitational wave signal at LISA from refractive index of solar wind plasma

2021 ◽  
Vol 510 (2) ◽  
pp. 1994-1995
Author(s):  
Adam Smetana
Keyword(s):  
Solar Wind ◽  
Refractive Index ◽  
Gravitational Wave ◽  
Solar Wind Plasma ◽  
Wave Signal

scholarly journals Radio Astronomical Scintillation in the Solar Wind Plasma: Imaging Interplanetary Disturbances

2002 ◽  
Vol 199 ◽  
pp. 426-429 ◽  
Author(s):  
P.K. Manoharan ◽  
M. Pick ◽  
Lasco Consortium
Keyword(s):  
Solar Wind ◽  
Refractive Index ◽  
Random Medium ◽  
Solar Wind Plasma ◽  
Radio Sources ◽  
The Sun ◽  
Radio Waves ◽  
Paper Briefly ◽  
Plasma Imaging ◽  
Salient Features

When radio waves propagate through a irregular medium, scattering by the random refractive index inhomogeneities can lead to a wide variety of phenomena, which include intensity scintillation. The observed scattering can be interpreted to gain information about the random medium and such inversion studies are valuable when the accessibility of the medium becomes difficult. This paper briefly describes the intensity scintillation of celestial radio sources caused by the turbulence in the solar wind and summarizes the salient features of the method employed in mapping the structure of disturbances leaving the Sun out to ∼1 AU.

scholarly journals Background for gravitational wave signal at LISA from refractive index of solar wind plasma

2020 ◽  
Vol 499 (1) ◽  
pp. L77-L81
Author(s):  
Adam Smetana
Keyword(s):  
Solar Wind ◽  
Refractive Index ◽  
Laser Interferometer ◽  
Electron Number Density ◽  
Interplanetary Space ◽  
Solar Wind Plasma ◽  
Number Density ◽  
Background Signal ◽  
Laser Interferometer Space Antenna ◽  
Reliable Knowledge

ABSTRACT A strong indication is presented that the space-based gravitational antennas, in particular the Laser Interferometer Space Antenna (LISA) concept introduced in 2017 in response to the ESA call for L3 mission concepts, are going to be sensitive to a strong background signal interfering with the prospected signal of gravitational waves. The false signal is due to variations in the electron number density of the solar wind, causing variations in the refractive index of plasma flowing through interplanetary space. As countermeasures, two solutions are proposed. The first solution is to deploy enough solar wind detectors to the LISA mission to allow for reliable knowledge of the solar wind background. The second solution is to equip the LISA interferometer with a second laser beam with a distinct wavelength to allow cancelling of the background solar wind signal from the interferometric data.

scholarly journals A review of the SCOSTEP’s 5-year scientific program VarSITI—Variability of the Sun and Its Terrestrial Impact

2021 ◽  
Vol 8 (1) ◽  
Author(s):  
Kazuo Shiokawa ◽  
Katya Georgieva
Keyword(s):  
Solar Wind ◽  
Interplanetary Space ◽  
Solar Wind Plasma ◽  
The Sun ◽  
Scientific Program ◽  
Solar Cycles ◽  
Grand Minimum ◽  
The Earth ◽  
Earth Connection ◽  
Near Future

AbstractThe Sun is a variable active-dynamo star, emitting radiation in all wavelengths and solar-wind plasma to the interplanetary space. The Earth is immersed in this radiation and solar wind, showing various responses in geospace and atmosphere. This Sun–Earth connection variates in time scales from milli-seconds to millennia and beyond. The solar activity, which has a ~11-year periodicity, is gradually declining in recent three solar cycles, suggesting a possibility of a grand minimum in near future. VarSITI—variability of the Sun and its terrestrial impact—was the 5-year program of the scientific committee on solar-terrestrial physics (SCOSTEP) in 2014–2018, focusing on this variability of the Sun and its consequences on the Earth. This paper reviews some background of SCOSTEP and its past programs, achievements of the 5-year VarSITI program, and remaining outstanding questions after VarSITI.

scholarly journals Ulysses solar wind plasma observations at high latitudes

1997 ◽  
Vol 20 (1) ◽  
pp. 15-22 ◽  
Author(s):  
P Riley ◽  
S.J Bame ◽  
B.L Barraclough ◽  
W.C Feldman ◽  
J.T Gosling ◽  
...  
Keyword(s):  
Solar Wind ◽  
Solar Wind Plasma ◽  
High Latitudes

Thermal properties of the solar wind plasma

Solar Physics ◽  
1971 ◽  
Vol 18 (1) ◽  
pp. 150-164 ◽  
Author(s):  
Tsutomu Toichi
Keyword(s):  
Solar Wind ◽  
Thermal Properties ◽  
Solar Wind Plasma

scholarly journals Modelling coloured residual noise in gravitational-wave signal processing

2010 ◽  
Vol 28 (1) ◽  
pp. 015010 ◽  
Author(s):  
Christian Röver ◽  
Renate Meyer ◽  
Nelson Christensen
Keyword(s):  
Signal Processing ◽  
Gravitational Wave ◽  
Wave Signal ◽  
Residual Noise

Ulysses solar wind plasma observations during the declining phase of solar cycle 22

1995 ◽  
Vol 16 (9) ◽  
pp. 85-94 ◽  
Author(s):  
J.L. Phillips ◽  
S.J. Bame ◽  
W.C. Feldman ◽  
J.T. Gosling ◽  
C.M. Hammond ◽  
...  
Keyword(s):  
Solar Wind ◽  
Solar Cycle ◽  
Solar Wind Plasma

The small spacecraft with a magnetic sail on high-temperature superconductors

2021 ◽  
pp. 51-61
Author(s):  
Timur Sh. KOMBAEV ◽  
Mikhail K. ARTEMOV ◽  
Valentin K. SYSOEV ◽  
Dmitry S. DEZHIN
Keyword(s):  
Magnetic Field ◽  
Solar Wind ◽  
High Temperature ◽  
Shape Memory ◽  
New Technologies ◽  
High Temperature Superconductors ◽  
Solar Wind Plasma ◽  
Large Area ◽  
Small Spacecraft ◽  
Shape Memory Materials

It is proposed to develop a small spacecraft for an experiment using high-temperature superconductors (HTS) and shape memory materials. The purpose of the experiment is to test a technological capability of creating a strong magnetic field on the small spacecraft using HTS and shape memory materials for deployed large-area structures, and study the magnetic field interaction with the solar wind plasma and the resulting force impact on the small spacecraft. This article is of a polemical character and makes it possible to take a fresh look at the applicability of new technologies in space-system engineering. Key words: high-temperature superconductors, shape memory materials, solar wind, spacecraft.

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