Zobrazeno 1 - 10
of 684
pro vyhledávání: '"Radio emissions"'
Autor:
Michal HOFFMAN, Eduard KOČI
Publikováno v:
Contributions to Geophysics and Geodesy, Vol 54, Iss 1, Pp 67-84 (2024)
The data from a permanent monitoring station, based on a sound card as an AD/DA converter and a magnetic loop antenna for continuous recording of electromagnetic field intensities in the Very Low Frequency (VLF) range, were recorded and compared with
Externí odkaz:
https://doaj.org/article/93384fa910234dd9a4132261e028c1f9
Publikováno v:
Frontiers in Astronomy and Space Sciences, Vol 11 (2024)
There are several methods for indirectly detecting exoplanets, such as transit, radial velocity, astrometry, and the conventional gravitational microlensing approach. These methods rely on observing the effects of exoplanets on the emission or motion
Externí odkaz:
https://doaj.org/article/af3e13b13d104e898ef3de05cadd5644
Autor:
Ping Li, Sai Zhang, Fuliang Xiao, Hongming Yang, Shengyi Ye, Si Liu, Yihua He, Qiwu Yang, Jiawen Tang, Archie James Johnston
Publikováno v:
The Astrophysical Journal Letters, Vol 966, Iss 2, p L26 (2024)
Auroral kilometric radiation (AKR) is a widely existing strong radio emission from the Earth’s magnetosphere and is generated by suprathermal (1–10 keV) electrons in the polar cavity. Previous works have demonstrated that AKR can contribute to th
Externí odkaz:
https://doaj.org/article/a379165c21624fa09501d6ac9b131dd5
Autor:
Shunshun Cao, Jinchen Jiang, Jaroslaw Dyks, Longfei Hao, Kejia Lee, Zhixuan Li, Jiguang Lu, Zhichen Pan, Weiyang Wang, Zhengli Wang, Jiangwei Xu, Heng Xu, Renxin Xu
Publikováno v:
The Astrophysical Journal, Vol 973, Iss 1, p 56 (2024)
As one of the paradigm examples to probe into pulsar magnetospheric dynamics, PSR B0943+10 (J0946+0951) manifests representatively, showing a mode switch, orthogonal polarization, and subpulse drifting, frequently studied below 600 MHz. Here, both in
Externí odkaz:
https://doaj.org/article/7bcc9d7246e746bfb98b88dd64bdd01f
Publikováno v:
The Astrophysical Journal, Vol 972, Iss 2, p 154 (2024)
In the planetary magnetosphere, plasma waves act as the medium for particles to transfer energy. Jupiter is the largest planet in our solar system, and the giant magnetosphere is full of energetic particles, producing intense radio emissions. When in
Externí odkaz:
https://doaj.org/article/11d96e7e1ff9461c9fd26891147bfa20
Publikováno v:
The Astronomical Journal, Vol 168, Iss 3, p 127 (2024)
We present results from a search for radio emission in 77 stellar systems hosting 140 exoplanets, predominantly within 17.5 pc using the Very Large Array (VLA) at 4–8 GHz. This is the largest and most sensitive search to date for radio emission in
Externí odkaz:
https://doaj.org/article/70e6f5187e7e414ba195059e9d017dbd
Autor:
Matthew Route
Publikováno v:
The Astrophysical Journal, Vol 966, Iss 1, p 55 (2024)
Plasma flow–obstacle interactions, such as those between an exoplanet’s magnetosphere and the host star’s stellar wind, may lead to detectable radio emissions. Despite many attempts to detect magnetospheric (auroral) radio emissions from exopla
Externí odkaz:
https://doaj.org/article/4fe97ec4c911472ea93df01c0ecbb0f1
Autor:
Zhengli Wang, Jiguang Lu, Jinchen Jiang, Shunshun Cao, Kejia Lee, Enwei Liang, Lunhua Shang, Weiyang Wang, Renxin Xu, Weiwei Zhu
Publikováno v:
The Astrophysical Journal, Vol 963, Iss 1, p 65 (2024)
We observed the nearby radio pulsar B0950+08, which has a 100% duty cycle, using the Five-hundred-meter Aperture Spherical Radio Telescope. We obtained the polarization profile for its entire rotation, which enabled us to investigate its magnetospher
Externí odkaz:
https://doaj.org/article/31626796485f4c0ba2d383a581a39609
Autor:
James LaBelle
Publikováno v:
Frontiers in Astronomy and Space Sciences, Vol 10 (2023)
Auroral radio emissions are of intrinsic interest as part of the Earth’s environment but also provide remote sensing of ionospheric conditions and processes and a laboratory for emission processes applicable to a wide range of space and astrophysic
Externí odkaz:
https://doaj.org/article/9e0eaa24f3054e3a9fd1911e1e14add2
Publikováno v:
Frontiers in Astronomy and Space Sciences, Vol 10 (2023)
Jupiter is a source of intense radio emissions in the decametric wavelength range observable from ground (above ∼10 MHz) and from space (down to a few kHz). The strong anisotropy of the Jovian radio sources results in characteristic shapes in the t
Externí odkaz:
https://doaj.org/article/3b95cac2db7042a5aa141d8c87738d28